Connecting mechanism for leisure chair

The utility model belongs to the field of leisure chairs, and particularly relates to a connecting mechanism for a leisure chair, which comprises a leisure chair, a foot support is connected onto the leisure chair, rotating rods are rotatably mounted on two sides of the leisure chair, the two rotating rods are fixedly sleeved with the same U-shaped frame, and the foot support is fixedly mounted on the U-shaped frame. A rotating plate is fixedly mounted at the end, away from the leisure chair, of the rotating rod, a plurality of triangular seats are annularly and fixedly mounted on the rotating plate at equal intervals, stabilizing seats are fixedly mounted on the two sides of the leisure chair and located above the rotating rod, a first groove is formed in the bottom end of each stabilizing seat, and a limiting rod is slidably mounted in each first groove. And the limiting rods are matched with the corresponding triangular seats. The leisure chair is reasonable in design, simple in structure ...

PROJECTION LENS

A projection lens, comprising in sequence from the imaging side to the image source side thereof: a first lens (E1) having negative focal power, the imaging side thereof being concave; a reflective optical surface (E2) for bending the light path; a second lens (E3) having positive focal power, the image source side thereof being convex; a third lens (E4) having positive focal power, the image source side thereof being convex; and an optical diaphragm being arranged between the first lens (E1) and the second lens (E3); the projection lens satisfies the following relationship: 0.4 Подробнее

IRIS CAMERA LENS

An iris camera lens, comprising a first lens (L1) and a second lens (L2) which are arranged along the optical axis from the object side to the image side in sequence. The first lens (L1) has the positive focal power, and the object side surface (S1) thereof is a convex surface, and the image side surface (S2) thereof is a concave surface. The second lens (L2) has the negative focal power. The spacing distance T12 between the first lens (L1) and the second lens (L2) on the optical axis, and the distance TTL between the object side surface (S1) of the first lens (L1) and the imaging surface (S7) of the iris camera lens on the optical axis meet the following condition: T12/TTL > 0. 32.

OPTICAL IMAGING LENS

An optical imaging lens. The optical imaging lens sequentially comprises, from an object side to an image side along an optical axis, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6). The first lens (E1) has a positive focal power, and both an object side surface (S1) and an image side surface (S2) thereof are convex surfaces. The second lens (E2) has a negative focal power. The third lens (E3) has a negative focal power, and an image side surface (S6) thereof is a concave surface. The fourth lens (E4) has a focal power. The fifth lens (E5) has a focal power, and an image side surface (S10) thereof is a convex surface. The sixth lens (E6) has a focal power, and an object side surface (S11) thereof is a concave surface. A maximum half field of view (HFOV) angle of the optical imaging lens is less than 30°.

充电桩（新能源车位一体充电桩）

Explosion-proof lamp and assembling method thereof

The invention belongs to the technical field of lamps, and particularly relates to an explosion-proof lamp and an assembling method thereof. The explosion-proof cover is arranged at the lower end of the mounting cavity and used for isolating the mounting cavity from the outside to prevent explosion of the lamp; the lighting assembly is slidably arranged at the upper end of the mounting cavity and used for lighting; the cushioning pre-tightening assembly is used for cushioning to ensure the illumination stability of the illumination assembly; the transmission assembly is used for adjusting the position of the lighting assembly; a reflector; when the lamp is replaced and assembled, through the arranged transmission assembly and the combined transmission mode of worm and gear transmission and thread transmission, free stretching of the lighting assembly is achieved, kneading transmission between turbines has self-locking performance, and it is guaranteed that the overall positions of the turbines ...

PROJECTION LENS

Disclosed is a projection lens. The projection lens sequentially comprises from an image source side to an imaging side along an optical axis: a first lens, a second lens, and a third lens. The first lens has a positive focal power, and the surface thereof near the image source side is convex; the second lens has a positive focal power or a negative focal power; the third lens has a positive focal power, and is a meniscus lens with the surface near the imaging side convex. An image source height ImgH of the projection lens and a total effective focal length f of the projection lens meet ImgH/f<0.2.

道闸（空降门）

WIDE-ANGLE IMAGING CAMERA LENS

A wide-angle imaging camera lens sequentially comprises from an object side to an image side: a first lens (E1) having a refractive power, an object-side surface (S1) thereof being a concave surface at a paraxial region; a second lens (E2) having a refractive power, an image-side surface (S4) thereof being a concave surface; a third lens (E3) having a positive refractive power, an image-side surface (S6) thereof being a convex surface; a fourth lens (E4) having a negative refractive power, an object-side surface (S7) thereof being in a concave crescent shape; and a fifth lens (E5) having a refractive power, an object-side surface (S9) thereof being a convex surface at a paraxial region, and at least one of the object-side surface (S9) and an image-side surface (S10) thereof comprising at least one inflection point. The wide-angle imaging camera lens satisfies the following formulas describing the relationship of variables: TTL/ImgH < 1.7, and -1.4 < f/f4 < 0, wherein TTL is a total length ...

PROJECTION LENS

Disclosed is a projection lens. The projection lens, along an optical axis from an image source side to an imaging side, sequentially comprises: a first lens having positive focal power; a second lens having negative focal power, surfaces of the image source side and the imaging side of the second lens being both concave surfaces; a third lens having positive focal power or negative focal power; and a fourth lens having positive focal power, the surface of the imaging side of the fourth lens being a convex surface. The total effective focal length f of the projection lens and the effective focal length f1 of the first lens satisfy an inequation: 2.0 Подробнее

TELEPHOTO LENS AND RECORDING DEVICE

A telephoto lens, the telephoto lens being provided with a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4) and at least one subsequent lens sequentially from an object side to an image side along an optical axis. The first lens (E1) has positive focal power, and an object-side surface (S1) thereof is a convex surface; an axis distance TTL from the object-side surface (S1) to an imaging surface (S13) of the first lens (E1) and a total effective focal length f of the telephoto lens meet a condition therebetween of: TTL/f≤1.0; the fourth lens (E4) has positive focal power; and a condition is met between the effective focal length f1 of the first lens (E1), the effective focal length f4 of the fourth lens (E4) and the total effective focal length f, the condition being: 1<|f/f1|+|f/f4|≤2.7.

Intelligent substation operation and maintenance-oriented cascading failure situation awareness method

The invention discloses a cascading failure situation awareness method for operation and maintenance of an intelligent substation, and the method comprises the steps: employing an event chain technology to describe cascading failure path event chain templates after each piece of primary equipment breaks down in a classified manner based on the protection principle and the voltage class of the substation; constructing a cascading fault path event chain set after each primary equipment has a fault according to an actual power grid topological structure and a main wiring of a transformer substation; searching and early warning a cascading failure path event chain according to the current operation state of the secondary equipment of the transformer substation; and aiming at the operation and maintenance operation of the current protection equipment, the cascading failure path event chain set after each primary equipment failure is utilized to provide a cascading failure warning for the operation ...

OPTICAL IMAGING SYSTEM

Disclosed is an optical imaging system, the imaging system sequentially comprising from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, which all have focal power. The first lens has positive focal power and is a lens made of a glass material; an object side surface of the second lens is a convex surface, and an image side surface thereof is a concave surface; and both the fourth lens and the fifth lens have negative focal power. The aperture value Fno of the optical imaging system satisfies Fno < 1.4.

OPTICAL IMAGING LENS

An optical imaging lens, comprising in sequence from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), a seventh lens (E7), and an eighth lens (E8) having a focal power. An object side surface (S1) of the first lens (E1) is a convex surface; the fourth lens (L4) has a positive focal power; the seventh lens (E7) has a negative focal power; an object side surface (S13) of the seventh lens (E7) is a convex surface; an air interval is provided between any two adjacent lens in the first lens (E1) to the eighth lens (E8); an effective focal length f1 of the first lens (E1) and the effective focal length f4 of the fourth lens (E4) satisfy 1.7<|f4/f1|<4.

OPTICAL IMAGING SYSTEM

An optical imaging system, comprising, in an order from an object side to an image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has a positive focal power; the second lens has a negative focal power, the object side surface thereof being a concave surface, and the image side surface thereof being a convex surface; the third lens has a focal power; the fourth lens has a positive focal power, the object side surface thereof being a concave surface, and the image side surface thereof being a convex surface; the fifth lens has a focal power; the sixth lens has a focal power; and the seventh lens has a positive focal power, the object side surface thereof being a convex surface. The total effective focal length f of the optical imaging system and the entrance pupil diameter EPD of the optical imaging system satisfies f/EPD ≤ 1.8.

SIGNAL PROCESSING METHOD, APPARATUS AND SYSTEM

The present invention relates to the technical field of communications. Provided in embodiments of the present invention are a signal processing method, apparatus and system, capable of reducing bandwidth of a signal transmitted by a transmitting terminal device, and reducing system costs. The signal processing method comprises: a communication device acquiring a first symbol sequence to be transmitted, the number of levels of said first symbol sequence being M, and M ≥ 2; the communication device delaying said first symbol sequence to be transmitted by N number of first symbol periods, thus generating a second symbol sequence, said first symbol period being the length of time between any two adjacent symbols in said first symbol sequence, and N ≥ 1; according to said first symbol sequence to be transmitted and said second symbol sequence, the communication device determining a third symbol sequence, the bandwidth of said third symbol sequence being smaller than the bandwidth of said first ...

CAMERA LENS

A camera lens comprising sequentially from an object side to an image side: a first lens (E1) having a positive optical power and the object-side surface (S1) being a convex surface; a second lens (E2) having a negative optical power; a third lens (E3) having a negative optical power and the object-side surface (S5) being a concave surface; a fourth lens (E4) having a positive optical power; a fifth lens (E5) having a positive optical power and the image-side surface (S10) being a convex surface; and a sixth lens (E6) having a negative optical power and the image-side surface (S12) being a concave surface. The camera lens satisfies the relationships of: 0 < f/f4 <0.8 and 0 < T12/T23 < 0.14, where f is the effective focal length of the camera lens, f4 is the focal length of the fourth lens (E4), T12 is the axis pitch between the first lens (E1) and the second lens (E2), and T23 is the axis pitch between the second lens (E2) and the third lens (E3). Thus acquired is the compact camera lens ...

CAMERA LENS

A camera lens having sequentially from an object side to an image side: a first lens (E1) having the object-side surface (S1) being a convex surface having a positive refractive power, a second lens (E2), a third lens (E3), a fourth lens (E4) having the object side surface (S7) being a concave surface, a fifth lens (E5) having a positive refractive power, a sixth lens (E6) and a seventh lens (E7) having a negative refractive power. The camera lens comprises an aperture stop (STO) arranged between a photographed object and the second lens (E2). The camera lens satisfies the formula of: TTL/ImgH < 2.4 ; 1.5 < CT1/CT2 < 4, where TTL is the total length of the camera lens, ImgH is the radius of an effective pixel region on an imaging surface (S17), CT1 is the center thickness of the first lens, and CT2 is the center thickness of the second lens. The camera lens has an increased viewing angle, is compact, and provides high image quality.

Insulator service performance evaluation method considering multiple lightning stroke and airflow factors

The invention discloses an insulator service performance evaluation method considering multiple lightning stroke and airflow factors. The method comprises the steps that firstly, an insulator service performance evaluation platform considering the multiple lightning stroke and airflow factors is built; based on the evaluation platform, multiple lightning impulse tests and strong airflow operation environment simulation are carried out on the line insulator; calculating a line insulator severe convection influence factor sigma; calculating a service performance evaluation factor tau of the line insulator under multiple lightning strokes; and finally, evaluating the service performance of the insulator according to the calculated service performance evaluation factor tau of the line insulator under multiple lightning strokes. According to the invention, the strong airflow effect of the line insulator can be effectively simulated, and the multi-lightning working condition of the line insulator ...

PROJECTION LENS

Disclosed is a projection lens, sequentially comprising, along an optical axis from an image-source side to an imaging side: a first lens (E1) and a second lens (E2), both of which have focal power. The first lens (E1) comprises a first plane of glass (E1p) arranged between a surface of the first lens (E1) at the image-source side and a surface of the first lens (E1) at the imaging side. The second lens (E2) comprises a second plane of glass (E2p) arranged between a surface of the second lens (E2) at the image-source side and a surface of the second lens (E2) at the imaging side.

MICRO CAMERA LENS

A micro camera lens includes three aspherical lenses (E1, E2, E3) and a diaphragm (E4). The diopters of the lenses are positive, negative and positive in sequence. The lenses meet the following expressions that: VP1>50 and VP2<35; in which, the VP1 and the VP2 are abbe numbers of the first lens and the second lens, respectively.

Supermarket energy-saving intelligent control system

The invention discloses a supermarket energy-saving intelligent control system, which comprises a control display host and a plurality of area dimming terminals, and is characterized in that the control display host comprises an area selection unit, a brightness setting unit and a color temperature setting unit; the control display host can bind at least one of a brightness setting instruction and a color temperature setting instruction with a corresponding area selection instruction to form at least part of control instructions and send the control instructions in a wireless mode; each area dimming terminal comprises a wireless receiving module, a dimming main control module, a dimming driving module and a light emitting module, the dimming driving module at least comprises a first switch unit and a second switch unit, and the light emitting module at least comprises a first LED unit and a second LED unit which are different in color; the dimming master control module is connected with ...

Optical imaging lens

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens group and a second lens group from an object side to an image side along an optical axis, wherein the first lens group comprises a first lens and a second lens which have negative focal power; the second lens group comprises a third lens, a fourth lens, a fifth lens, a sixth lens with positive focal power, a seventh lens and an eighth lens with positive focal power; wherein a spacing distance is formed between any two adjacent lenses in the first lens to the eighth lens; the optical imaging lens is configured to enable the focal length of the optical imaging lens to be continuously variable by adjusting the spacing distance between the first lens group and the second lens group on the optical axis; the object side surfaces of the third lens and the sixth lens are convex surfaces; and the effective focal length f2 of the second lens and the effective focal length f8 of the eighth ...

PROJECTION LENS

A projection lens, sequentially comprising a first lens (E1) of a positive focal power and a second lens (E2) of a positive focal power from a source side to an imaging side along an optical axis. At least one of the first lens (E1) and the second lens (E2) is made of glass. The total effective focal length f of the projection lens and the effective focal length f2 of the second lens (E2) meet the condition: 1 Подробнее

OPTICAL IMAGING LENS

An optical imaging lens. The lens sequentially comprises, from an object side to an image side along an optical axis, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6). The first lens (E1) has positive focal power; the second lens (E2) has negative focal power; the third lens (E3) has negative focal power; the fourth lens (E4) has focal power, and the image side surface (S8) thereof is convex; the fifth lens (E5) has negative focal power, and the object side surface (S9) thereof is concave; and the sixth lens (E6) has focal power, and the object side surface (S11) thereof is concave. The effective focal length f3 of the third lens (E3) and the effective focal length f of the optical imaging lens meet -3˂f3/f˂-1.5.

RADIO FREQUENCY SIGNAL LOOPBACK METHOD AND OUTDOOR UNIT

The embodiments of the present invention provide a radio frequency signal loopback method and an outdoor unit (ODU). Wherein the ODU includes: a transmission module (10), a reception module (60), a branch module (20), a combination module (40), a duplexer (50) and an amplifier (30). Wherein the transmission module (10) is used to transmit signals; the branch module (20) is used to branch the signals transmitted by the transmission module (10) into two branches, wherein one branch is inputted into the amplifier (30), and the other is inputted into the duplexer (50); the amplifier (30) is used to amplify the signals from the branch module (20); the duplexer (50) is used to filter the signals from the branch module (20) and then output them to an antenna (100), and filter the external signals received by the antenna (100) and then output them to the combination module (40); the combination module (40) is used to combine the signals outputted by the amplifier (30) with the signals outputted ...

IRIS LENS

An iris lens. The iris lens comprises, along an optical axis, a first lens (L2) and at least one subsequent lens in the sequence from the object side to the image side. Among the at least one subsequent lens, the object side surface (S7) of the lens, which is closest to the image side and has a focal power, is concave. The iris lens further comprises a color filter (L1), the color filter being provided between the object side and the lens which is closest to the image side and has a focal power, the band-pass wave range of the color filter being from 700 nm to 900 nm.

Material is led just to put up and have this material and is led casting mould that is just putting up

... 本实用新型涉及模具技术领域，公开了一种材料导正架，包括安装板和垂直固定于所述安装板上的导向板，所述导向板的一侧还固定连接有圆柱形的导向轮，所述导向轮的顶面与所述导向板平行，且所述导向轮的最高点高于所述导向板的最高点。所述材料导正架与制件的接触面为光滑的圆弧面，避免了对制件造成划伤损害，并且导向轮对制件具有导向滑行的作用，提高了工作效率，降低了劳动强度。本实用新型公开了一种铸造模，其上设有多组所述材料导正架。 ...

Hydraulic locking mechanism of rotary blowout preventer

The hydraulic locking mechanism of the rotary blowout preventer comprises a rotary assembly and a shell which are matched with each other, the rotary assembly is provided with a locking ring groove, and the outer side of the rotary assembly is further sleeved with a locking unit; the locking unit comprises an inner sleeve body and an outer sleeve body, the inner sleeve body and the outer sleeve body are combined to form a piston cavity, and a piston assembly is arranged in the piston cavity; a first channel is formed in the side wall of the inner sleeve body and communicates with the piston cavity, and a locking assembly is connected into the first channel in a sleeved mode. The locking ring groove is provided with a first conical surface, the locking clamping block is provided with a second conical surface, and the first conical surface is matched with the second conical surface. The inner sleeve body and the outer sleeve body are combined to form the piston cavity, the locking assembly ...

Optical imaging lens

The utility model provides an optical imaging lens. The optical imaging lens includes: a lens barrel; a plurality of lenses which are arranged at intervals along the axial direction of the lens cone; curing the glue layer; and the glass cover plate is connected with the object end surface of the lens cone through the curing glue layer. The large-image-plane lens solves the problem that a large-image-plane lens in the prior art is difficult to realize miniaturization.

CAMERA LENS

A camera lens comprises a first lens (E1) having a positive refraction power and an object side surface of which is a convex surface, a second lens (E2) having negative refraction power and a third lens (E3) having a positive refraction power from an object side to an image side in sequence, the first lens. The camera lens meets a relational expression: tan(HFOV) > 0.74; TTL/ImgH < 1.7; and 0.6 < f1/f < 0.8 and - 1.3 < f1/f2 < -0.8. The HFOV is half of a view field angle of the camera lens, the TTL is a total length of the lens of the camera lens, the ImgH is half of a diameter of an effective pixel region of the camera lens on an imaging surface, the f1 is a focal length of the first lens (E1), the f2 is a focal length of the second lens (E2) and the f is an effective focal length of the camera lens.

OPTICAL SYSTEM

Disclosed is an optical system, the optical system sequentially comprising along an optical axis from an imaging side to an image source side: a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the first lens has positive focal power, and a surface thereof close to the image source side is a concave surface; the second lens has positive focal power, and a surface thereof close to the image source side is a convex surface; the third lens has negative focal power, and a surface thereof close to the image source side is a convex surface; the fourth lens has focal power, and a surface thereof close to the imaging side is a concave surface; and the fifth lens has focal power. An effective focal distance f2 of the second lens and a total effective focal distance f of the optical system meets 0＜f2/f＜1.

IMAGING CAMERA LENS

An imaging camera lens, having a total effective focal length f and comprising a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6) and a seventh lens (L7) which are arranged along the optical axis from the object side to the image side in sequence. The first lens (L1) and the fifth lens (L5) have the negative focal power; the second lens (L2), the fourth lens (L4), the sixth lens (L6) and the seventh lens (L7) have the positive focal power or negative focal power; the third lens (L3) has the positive focal power, and the effective focal length f3 thereof and the total effective focal length f meet the following condition: 1 Подробнее

CAMERA LENS

A camera lens, from an objective side to an image side, comprises: a first lens (E1) having a positive refractive power, an objective side surface thereof being a convex surface; a second lens (E2) having a refractive power; a third lens (E3) having a negative refractive power, an image side surface thereof being a concave surface at a paraxial position, and having at least one first point of inflexion; a fourth lens (E4) having a positive refractive power, an objective side surface thereof being a concave surface at a paraxial position, and having at least one second point of inflexion, and an image side surface of the fourth lens being a convex surface; a fifth lens (E5) having a negative refractive power, an image side surface of the fifth lens being a concave surface at a paraxial position, and an objective side surface thereof having at least one third point of inflexion; and a sixth lens (E6) having a negative refractive power, an image side surface of the sixth lens being a concave ...

Dive low -speed impeller's motor supporting seat

... 本实用新型属于水处理设备领域，涉及潜水低速推流器的安装系统，特别是潜水低速推流器的电机支撑座，包括电机支撑座本体，其特征在于电机支撑座为对称形构件，本体上部有在左右对称的V形定位支撑面，下端有定位槽，上部的支撑面上有倒棱体凹窝，凹窝内嵌装有减震垫，减震垫通过螺钉与本体紧固。本实用新型采用了模块化产品结构的设计理念，具有结构紧凑、外观新颖、抗压、减震、耐冲击、强度高等特点。 ...

CAMERA LENS

A camera lens, sequentially comprising: a first lens (E1) having positive refractive power, an object side face (S1) of the first lens (E1) being a convex surface, and an image side face of the first lens(E1) being a concave surface; a second lens (E2) having refractive power; a third lens (E3) having negative refractive power; a fourth lens (E4) having positive refractive power, an image side face (S8) of the fourth lens (E4) being a convex surface; and a fifth lens (E5) having negative refractive power, and at least one of an object side face (S9) and an image side face (S10) of the fifth lens (E5) having at least one inflexion point. The camera lens meets the following relational expressions: TTL/2Y≦0.7; -0.7＜f/f3＜-0.3, wherein, TTL is a total length of the camera lens, Y is half of a length of a diagonal line of an effective pixel region on an imaging plane (S13), f is an effective focal length of the camera lens, and f3 is an effective focal length of the third lens (E3). By being ...

OPTICAL IMAGING SYSTEM

An optical imaging system, the optical imaging system sequentially comprising along the optical axis from an object side to an image side: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), and a seventh lens (E7). The first lens (E1) and the third lens (E3) each have a positive focal power; the second lens (E2), the fourth lens (E4), the fifth lens (E5), the sixth lens (E6) and the seventh lens (E7) each have a positive focal power or a negative focal power; an object side surface (S1) of the first lens (E1) is a convex surface, and an image side surface (S2) thereof is a concave surface; an image side surface (S4) of the second lens (E1) is a concave surface; an object side surface (S5) of the third lens (E1) is a convex surface; an object side surface (S13) of the seventh lens (E1) is a convex surface, and an image side surface (S14) thereof is a concave surface; the total effective focal length f of the optical imaging ...

DUPLEXER MALFUNCTION DETECTING METHOD AND APPARATUS

The present invention discloses a duplexer malfunction detecting method and apparatus, relating to the microwave communication technology field and provided for resolving the problem that the good or bad performance of a duplexer can not be detected online in the prior art. The duplexer malfunction detecting method provided by the embodiment of the present invention includes: receiving the detection wave voltage of the duplexer echo signal; the echo signal is a part of reflection signal which is generated in the duplexer input port by the microwave signal inputted into the duplexer input port; judging whether the detection wave voltage of the echo signal exceeds the reference threshold; if judging that the detection wave voltage of the echo signal exceeds the reference threshold, then determining the duplexer malfunction. By applying the present invention, the online detection of duplexer performance is enabled.

MICRO LENS

A micro lens, comprising three sets of optics. A first optic (E1) is a biconvex optic with a positive focal power, a second optic (E2) is an optic with a negative focal power and a concave image surface side, and a third optic (E3) is an optic with a negative focal power. At least one surface of the optics of the lens is an aspheric surface. This micro optical lens adopts three aspheric optics to miniaturize the structure, and realizes a high optical performance by means of different focal power assignments, and can be conveniently installed in different types of digital products required for portable images.

IMAGE PICKUP OPTICAL SYSTEM

An image pickup optical system, comprising a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6) that are sequentially provided along an optical axis from an object side to an image side, wherein the first lens has positive focal power, and the object side surface (S1) thereof is a convex surface, and an image side surface (S2) is a concave surface; the second lens has negative focal power, the object side surface (S3) thereof is the convex surface, and the image side surface (S4) is the concave surface; the third lens has focal power; the fourth lens has focal power; the fifth lens has the positive focal power; the sixth lens has the negative focal power, and the object side surface (S11) thereof is the concave surface. TTL is a distance from the object side surface of the first lens and the imaging surface (S15) of the image pickup optical system along the optical axis, half of the diagonal length of the effective pixel ...

CAMERA LENS AND CAMERA DEVICE EQUIPPED WITH THE CAMERA LENS

A camera lens and a camera device equipped with the camera lens, the camera lens comprising: a first lens (E1) proximate to the object side and having a positive focal power and a plurality of follow-on lenses arranged sequentially from the first lens (E1) to the imaging side along an optical axis. The focal power of the first lens (E1) satisfies with the following formula: 2.0 Подробнее

OPTICAL IMAGING CAMERA

Provided is an optical imaging camera, sequentially comprising from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), a seventh lens (E7) and an eighth lens (E8), wherein the first lens has a positive focal power; the second lens has a focal power; the third lens has a focal power; the fourth lens has a positive focal power; the fifth lens has a negative focal power; the sixth lens has a focal power; the seventh lens has a positive focal power; the eighth lens has a negative focal power; and the total effective focal length f of the optical imaging camera, an entrance pupil diameter (EPD) of the optical imaging camera, and the distance TTL from an object side surface of the first lens to an imaging surface of the optical imaging camera on the optical axis satisfy 5 mm < f × (TTL/EPD) < 7.2 mm.

CAMERA LENS OPTICAL IMAGING SYSTEM

A camera lens optical imaging system, the optical imaging system is sequentially provided along the optical axis, from an object side to an imaging side, with: a first lens (L1) having positive refractive power, wherein an object side surface thereof is a convex surface and an image side surface is a concave surface; a second lens (L2) wherein an object side surface thereof a convex surface and an image side surface is a convex surface; a third lens (L3) having negative refractive power; and a fourth lens (L4) having negative refractive power; the focal length f1 of the first lens (L1), the effective focal length f4 of the fourth lens (L4) and the effective focal length f of the optical imaging system satisfy: -0.8＜(f1+f4)/f＜0.

IRIS CAMERA LENS

Disclosed is an iris camera lens. The iris camera lens comprises, along an optical axis and in order from an object side to an imaging face, a first lens (L1), a second lens (L2), a third lens (L3) and an optical filter (L4). An aperture stop (STO) is arranged between the first lens (L1) and the second lens (L2); the first lens (L1) has a positive focal power, an object side face (S1) of the lens is a convex face and an image side face (S2) thereof is a concave face; the second lens (L2) has a negative focal power; the third lens (L3) has a positive focal power or a negative focal power; and the optical filter (L4) is an IR optical filter, and a bandpass waveband thereof is 750 nm to 900 nm.

OPTICAL LENS ASSEMBLY

Provided is an optical lens assembly, said lens assembly comprising the following, in order from the object side to the image side along the optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6). The first lens (E1) has a negative focal power; the second lens (E2) has a focal power; the third lens (E3) has a focal power, and its image side surface (S6) is a convex surface; the fourth lens (E4) has a focal power, and its image side surface (S8) is a concave surface; the fifth lens (E5) has a positive focal power, and its image side surface (S10) is a convex surface; the sixth lens (E6) has a focal power, its object side surface (S11) is a convex surface, and its image side surface (S12) is a concave surface; the combined focal length f23 of the second lens (E2) and third lens (E3) and the total effective focal length f of the optical lens assembly satisfy 0.8 < f23/f < 1.3.

Optical imaging lens

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens group and a second lens group from an object side to an image side along an optical axis, wherein the first lens group comprises a first lens, a second lens and a third lens; the second lens group comprises a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power, a seventh lens, an eighth lens with negative focal power and a ninth lens with positive focal power; any two adjacent lenses in the first lens to the ninth lens have a spacing distance; the optical imaging lens is configured to enable the focal length of the optical imaging lens to be continuously variable by adjusting the spacing distance between the first lens group and the second lens group on the optical axis; the center thickness of the ninth lens on the optical axis is larger than the center thickness of any other lens on the optical axis. The refractive ...

IMAGING LENS

An imaging lens. The imaging lens comprises, from an object side to an image side along the optical axis, a first lens (L1), a second lens (L2), a third lens (L3), and a fourth lens (L4) in sequence. The object side surface of the first lens (L1) is a concave surface, and the image side surface of the fourth lens (L4) is a concave surface; the second lens (2) has positive focal power; at least one of the first lens (L1), the third lens (L3), and the fourth lens (L4) has negative focal power; the effective focal length f3 of the third lens (L3) and the effective focal lens f4 of the fourth lens (L4) satisfy f3/f4>0.

IRIS LENS

Provided is an iris lens, having a total effective focal length f. From an object side to an imaging plane along the optical axis, the iris lens sequentially comprises a first lens (L1), a second lens (L2) and a third lens (L3). The first lens (L1) has a positive focal power, and the object side thereof is a convex surface. Both the second lens (L2) and the third lens (L3) have a positive focal power or a negative focal power. The distance TTL from the object side to the imaging plane of the first lens (L1) on the optical axis, and the total effective focal length f satisfy 0.7＜TTL/f＜1.1.

Rotating grabbing device

... 本发明涉及种旋转抓取装置。应用在机械手上并用于取放工件，包括：固定件，与所述机械手连接；旋转机构，包括安装在所述固定件上的安装架，与所述安装架转动连接的主轴，固定在所述主轴上的齿轮，及驱动所述齿轮转动的传动组件；及抓取机构，与所述主轴连接并用于取放所述工件。当传动组件驱动齿轮转动时，齿轮通过主轴带动抓取机构转动，抓取机构转动的角度范围可以在0°到90°之间。抓取机构可以从相对水平面平行的位置转动到与水平面垂直的位置，当抓取机构对工件进行抓取或摆放时，抓取机构可以调整自身的角度，从而于垂直方向上施加对工件的作用力，顺利实现对工件的抓取或摆放，提高旋转抓取装置了对工件上、下料的效率和精度。 ...

PROJECTION LENS

A projection lens, the lens sequentially from an image source side to an image forming side along an optical axis comprising: a first lens (E1) and a second lens (E2). The first lens (E1) has a negative power, an image source side surface (S1) thereof being a concave surface, and an image forming side surface (S2) being a convex surface; and the second lens (E2) has a positive power, an image forming side surface (S4) thereof being a convex surface.

IMAGE CAMERA LENS

An image camera lens (100), comprising an optical lens set (101), and a lens tube (102) for accommodating the optical lens set (101), wherein the optical lens set (101) sequentially comprises, from an object side to an image side along an optical axis thereof, a first lens (E1) and at least one subsequent lens, wherein same have a focal power; and the lens semi-diameter LM of the first lens (E1), the maximum effective semi-diameter DT11 of an object side face (S1) of the first lens (E1), and the distance SAG11, on an optical axis, from an intersection point of the object side face (S1) of the first lens (E1) and the optical axis to the vertex of the maximum effective semi-diameter of the object side face (S1) of the first lens (E1) satisfy (LM-DT11)/SAG11 < 1.0.

OPTICAL IMAGING LENS

Disclosed in the present application is an optical imaging lens. The imaging lens successively comprises, along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has a negative focal power; the second lens has a negative focal power; the third lens has a positive focal power; the fourth lens has a positive focal power; the fifth lens has a focal power and an object side surface thereof is concave; the sixth lens has a focal power; and the seventh lens has a negative focal power. An effective focal length f1 of the first lens and a total effective focal length f of the optical imaging lens satisfy −3.5 Подробнее

PROJECTION LENS

A projection lens, sequentially comprising from an image source side to an imaging side along an optical axis: a first lens (E1) having positive optical power or negative optical power, a second lens (E2) having positive optical power or negative optical power, and a third lens (E3) having positive optical power, the imaging side surface (S6) of the third lens (E3) being a convex surface. A distance TTL, on the optical axis, from the image source surface (OBJ) of the projection lens and the imaging side surface (S6) of the third lens (E3) and a total effective focal length f of the projection lens satisfy TTL/f<1.4, and an effective focal length f3 of the third lens (E3) and the total effective focal length f of the projection lens satisfy 0 Подробнее

OPTICAL IMAGING SYSTEM

An optical imaging system. The imaging system sequentially comprises from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), and a fourth lens (E4). The first lens (E1) has a negative focal power; the second lens (E2) has a positive focal power or a negative focal power; the third lens (E3) has a positive focal power or a negative focal power, and an image side surface (S6) thereof is concave; the fourth lens (E4) has a positive focal power, and an image side surface (S8) thereof is concave. A total effective focal length f of the optical imaging system and an entrance pupil diameter (EPD) of the optical imaging system satisfy f/EPD≤1.60.

TELEPHOTO LENS

A telephoto lens, comprising, from the object side to the image side: a first lens (E1) with positive focusing power, the object side (S1) of the first lens is a convex surface; a second lens (E2) with focusing power; a third lens (E3) with focusing power; a fourth lens (E4) with focusing power; a fifth lens (E5) with positive focusing power, the object side (S9) of the fifth lens is a concave surface; a sixth lens (E6) with positive focusing power, the object side (S11) of the sixth lens near the axis is a concave surface, and the image side (S12) of the sixth lens is a convex surface. The telephoto lens satisfies the following relations: 0.75 < TTL/f < 1.0 and ImgH/f < 0.55; wherein TTL is an axial distance from the object side surface of the first lens to an image forming surface (S15); f is an effective focal length of the telephoto lens; and ImgH is half of the length of a diagonal line across an effective pixel area of an imaging surface. The telephoto lens can ensure a long-focusing ...

OPTICAL IMAGING SYSTEM

An optical imaging system, comprising, in sequence from an object side to an image side along an optical axis, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), and a fifth lens (E5). The first lens (E1) has positive focal power and a convex object side surface (S1); the second lens (E2) has negative focal power; the third lens (E3) has negative focal power and a concave object side surface (S6); the fourth lens (E4) has positive focal power or negative focal power; the fifth lens (E5) has negative focal power and a concave object side surface (S9). A distance TTL on an optical axis from the object side surface (S1) of the first lens (E1) to an imaging surface (S13) of the optical imaging system, a total effective focal length f of the optical imaging system, and half of a diagonal length, i.e., ImgH, of an effective pixel region on the imaging surface (S13) of the optical imaging system satisfy TTL/f≤0.95 and f/ImgH<4.5.

CAMERA LENS SYSTEM WITH SIX LENSES

A camera lens system, which comprises a first lens group and a second lens group in sequence from an object side to an image side, wherein the first lens group comprises a first lens (E1), a second lens (E2) and a third lens (E3) in sequence from the object side to the image side; and the second lens group comprises a fourth lens (E4), a fifth lens (E5) and a sixth lens (E6) in sequence from the object side to the image side. The first lens (E1) has a positive focal power, and the object side surface (S1) thereof is a convex surface; the second lens (E2) has a negative focal power, and the object side surface (S3) thereof is a convex surface; the fifth lens (E5) has a negative focal power, and the image side surface (S10) thereof is a convex surface; the sixth lens (E6) has a negative focal power, and the object side surface (S11) thereof is a concave surface; the image side surface (S4) of the second lens (E2) is a concave surface; the object side surface (S9) of the fifth lens (E5) is ...

Intelligent power distribution operation support system based on multi-source heterogeneous data of power grid

The invention discloses an intelligent power distribution operation support system based on multi-source heterogeneous data of a power grid, and the system comprises a data collection module which is used for collecting the multi-source heterogeneous data in each system and transmitting the multi-source heterogeneous data to a data integration module through a data interface; the data integration module is used for cleaning, filtering, recombining and storing the data acquired by the data acquisition module; the data checking module is used for mutually checking the processed data to ensure the consistency, integrity and accuracy of the data; and the data fusion module establishes an association model of the multi-source heterogeneous data for the checked multi-source heterogeneous data according to the association relationship among the data sources, and realizes data visualization. According to the invention, the problems of many distribution network application systems, data dispersion ...

OPTICAL IMAGING SYSTEM

An optical imaging system, comprising, sequentially along an optical axis from object side to image side, a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), and a seventh lens (E7). The first lens (E1) is provided with a positive optical power, the second lens (E2) is provided with a negative optical power, the object-side face of the sixth lens (E6) is a concave surface, and the seventh lens (E7) is provided with a negative optical power. In the present system, |f/f4|+|f/f5| ≤ 0.3, and 3.5mm < f×(ImgH/TTL) < 4.5mm, where f is the effective focal length of the optical imaging system, f4 is the effective focal length of the fourth lens (E4), f5 is the effective focal length of the fifth lens (E5), ImgH is half of the diagonal length of the effective pixel region on the imaging surface of the optical imaging system, and TTL is the distance on the optical axis from the object-side surface of the first lens (E1) to the imaging ...

OPTICAL LENS GROUP

An optical lens group. The optical lens group sequentially comprises, along an optical axis, from the object side to the image side: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6). The first lens (E1) has a negative focal power; the second lens (E2) has a focal power, and the image side surface thereof is a concave surface; the third lens (E3) has a focal power, and the image side surface thereof is a convex surface; the fourth lens (E4) has a positive focal power, and the object side surface thereof is a convex surface; the fifth lens (E5) has a negative focal power; the sixth lens (E6) has a focal power. The third lens (E3) is a lens made of glass; and the central thickness CT3 of the third lens (E3) on the optical axis and the central thickness CT4 of the fourth lens (E4) on the optical axis satisfy 1.5 Подробнее

OPTICAL IMAGING LENS

Provided is an optical imaging lens, comprising, in sequence from the object side to the image side: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6), wherein the first lens (E1) has a positive focal power, the object side surface (S1) thereof is a convex surface, and the image side surface (S2) is a concave surface; the second lens (E2) has a negative focal power, the object side surface (S3) thereof is a convex surface, and the image side surface (S4) is a concave surface; the third lens (E3) has a focal power; the fourth lens (E4) has focal power, and the image side surface (S8) thereof is a concave surface; the fifth lens (E5) has a focal power; the sixth lens (E6) has a negative focal power, the object side surface (S11) thereof is a convex surface, and the image side surface (S12) is a concave surface; the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging ...

OPTICAL IMAGING SYSTEM

An optical imaging system comprises, in order from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has positive focal power, a convex object-side surface and a concave image-side surface. The second lens has negative focal power, a convex object-side surface and a concave image-side surface. The third lens has focal power, a convex object-side surface and a concave image-side surface. The fourth lens has positive focal power. The fifth lens has focal power. The sixth lens has focal power. The seventh lens has negative focal power, a convex object-side surface and a concave image-side surface. The total effective focal length f and the maximum half field of view (HFOV) of the optical imaging system satisfy 3.8 mm < f*TAN(HFOV) < 4.5 mm.

TELEPHOTO LENS

Provided is a telephoto lens, comprising, in order from an object side to an image side of the lens: a first lens (E1) having a positive focal power, an object side surface (S1) of the first lens (E1) being a convex surface, and an image side surface (S2) of the first lens (E1) being a convex surface; a second lens (E2) having a focal power; a third lens (E3) having a focal power and being made of a plastic material, and both an object side surface (S5) and an image side surface (S6) of the third lens (E3) are aspherical; and a fourth lens (E4) having a focal power, an object side surface (S7) of the fourth lens (E4) being a convex surface, the fourth lens (E4) made of a plastic material, and both the object side surface (S7) and an image side surface (S8) of the fourth lens (E4) being aspherical. The telephoto lens satisfies the following relational expressions: 0.7 < TTL/f < 0.95 and |f4/f|≧1.2, wherein TTL is an axial distance from the object side surface (S1) of the first lens (E1) ...

CAMERA LENS

A camera lens. The camera lens comprises: a first lens group and a second lens group in sequence from an object side to an image side. the first lens group comprises a first lens (L1) and a second lens (L2); the second lens group comprises at least one third lens (L3); a light filter (L5) is provided between the second lens group and the image side; and the curvature radius R1 of an object side surface (S1) of the first lens and the curvature radius R2 of an image side surface (S2) of the first lens satisfy 0.5 Подробнее

CGF behavior modeling method and system based on action detection mechanism

The invention discloses a CGF behavior modeling method and system based on an action detection mechanism, interactive guide type intervention is introduced in two aspects of action and reward for training a CGF behavior model so that the CGF behavior model can complete a specified task in a specific task environment, and the method specifically comprises the following steps: 1, adding a detection judgment mechanism on the basis of the action output by the model; and secondly, the reward value of the interaction result of the CGF and the environment is detected and judged and then is input into the DR algorithm. Compared with a method for directly carrying out CGF behavior model operation by directly adopting a DRL algorithm which is not based on a model, a more accurate action empirical value can be fused into the CGF behavior model, and the convergence process of a deep reinforcement learning algorithm is accelerated. The invention provides a set of complete model training process and ...

IMAGE PICKUP LENS AND MODULE THEREOF AND TERMINAL

An image pickup lens and a module thereof and a terminal. The lens comprises in this order from an object side to an image side: a first lens with positive focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with focal power, a fifth lens with positive focal power, a sixth lens with focal power, wherein the object side surface of the second lens is a convex surface, the image side surface of the fifth lens is a convex surface, and the part, which is close to an axis, of the image side surface of the sixth lens is a concave surface. The lens satisfies 5.5 Подробнее

CAMERA LENS AND PHOTOGRAPHING DEVICE COMPRISING SAME

A camera lens, comprising the following components disposed in sequence from an object side to an imaging side along an optical axis: a first lens (L1) having a negative focal power, an image side surface (S2) of the first lens (L1) being a concave surface; a second lens (L2) having an image side surface (S4) being a convex surface; a third lens (L3); a fourth lens (L4) having a negative focal power; and at least one subsequent lens. The effective radius DT21 of an object side surface (S3) of the second lens (L2) and the effective radius DT42 of an image side surface (S8) of the fourth lens (L4) meet the following condition: 0.5 Подробнее

Full-assembly type steel-concrete villa building material construction transfer device and working method

The invention relates to the technical field of building material transfer, in particular to a fully-fabricated reinforced concrete villa building material construction transfer device and a working method.The fully-fabricated reinforced concrete villa building material construction transfer device comprises a base, a supporting rod is fixedly installed on the base, a storage plate is fixedly arranged at the end, away from the base, of the supporting rod, and a fixed containing box is formed on the storage plate; the transferring mechanism is arranged on the object placing plate and comprises a transporting assembly and a driving assembly, the transporting assembly comprises a sliding piece arranged on the object placing plate in a sliding mode, the driving assembly is arranged in the fixed containing box, and when the driving assembly acts, the transporting assembly can be driven to drive the sliding piece to do reciprocating motion on the object placing plate; and the clamping mechanism ...

Internal pipeline arrangement device for sewage pipe jacking construction

The invention discloses an internal pipeline arrangement device for sewage pipe-jacking construction, and relates to a jacking pipe, the internal pipeline arrangement device comprises a bearing assembly, the bearing assembly comprises a shaft body, the shaft body is sleeved with a support set capable of being rotatably folded or separated, the support set can move along the inner wall of the jacking pipe, and pipelines with different functions can be placed on the separated support set; the connecting assembly is used for connecting the two adjacent bearing assemblies, the two bearing assemblies are moved to the two ends of the interior of the jacking pipe in the unfolded state, and the pipelines are arranged according to a specified path; according to the device, pipelines with different functions are sequentially placed at different positions on the support set, so that the pipelines do not interfere with one another, the pipelines in the jacking pipe can be kept to be arranged in order ...

Waterproof layer for planting roof and planting roof

The invention relates to the technical field of building materials, and particularly discloses a waterproof layer for a planted roof and the planted roof. The waterproof layer for planting the roof comprises a first coating and a second coating, the first coating comprises a sodium silicate solution with the mass fraction of 10-15%, and the second coating comprises the following raw materials in parts by weight: 15-25 parts of urea resin and 50-75 parts of modified silane. According to the waterproof layer for the planted roof, the problems that the adhesion performance between the waterproof layer and concrete is poor, and the waterproof performance is poor can be solved.

Flange formula (mixing) shaft of speed adjusting bearing line soon

... 本实用新型属于水处理设备领域，特别涉及采用焊接工艺制造的一端带法兰联轴器的空心长轴类零部件，即可快速调整轴线的法兰式搅拌轴，包括法兰式搅拌轴，法兰式搅拌轴的法兰端的环形实体上若干螺栓孔，其特征是在法兰式搅拌轴的法兰端的环形实体上增加4个内螺纹孔，内螺纹孔配套有调整螺钉，调整螺钉套有并紧螺母和弹簧垫圈。本实用新型通过产品结构的设计改进，完善现有装配调整工艺，提高产品运行的安全性。 ...

Contact box anti-condensation capability evaluation method considering wet-electric combination

The invention provides a contact box anti-condensation capability evaluation method considering wet-electric combination. The contact box anti-condensation capability evaluation method considering wet-electric combination comprises the step of building a contact box anti-condensation capability evaluation platform considering wet-electric combination. The working current when the contact box works is output through the working power source simulator, the relative humidity of the evaluation device box is changed through the humidity regulation and control nozzle, the limit voltage under different relative humidity is obtained, the limit voltage reference value is optimized through an optimization algorithm according to the limit voltage value, and the evaluation accuracy is improved. And the anti-condensation capability of the contact box is evaluated by combining a limit voltage reference value. The contact box anti-condensation capability evaluation method considering wet electricity combination ...

Method and device for predicting sag height of lead

The invention discloses a conductor sag height prediction method and device, and relates to the field of sag measurement, and the method comprises the steps: jointly obtaining the position and degree of a central point of a power transmission conductor through an inertial navigation device and a satellite navigation device, and obtaining the weather data of a local place where the power transmission conductor is located, and the working heat energy and working current of the power transmission conductor; and inputting the parameters into a preset neural network model, determining a sag height prediction value of the transmission conductor, finally judging whether the sag prediction value is within a preset sag range, and if not, judging that the length of the sag is abnormal. The position and the speed of the sag point are jointly detected through the inertial navigation device and the satellite navigation device, the influence of the temperature and the surrounding environment on the sag ...

OPTICAL IMAGING SYSTEM

An optical imaging system, comprising a first lens group and a second lens group from an object side to an image side in sequence. The first lens group comprises at least a first lens (L1) having negative optical power and a second lens (L2) having optical power. The second lens group comprises at least a third lens (L3) having positive optical power, a fourth lens (L4) having optical power, and a fifth lens (L5) having optical power. The image side surface (S6) of the third lens (L3) is a convex surface. The object side surface (S9) of the fifth lens (L5) is a convex surface. The effective half aperture DT32 of the image side surface (S6) of the third lens (L3) and the focal length f3 of the third lens (L3) satisfies the condition that 0 Подробнее

CAMERA LENS

A camera lens. The camera lens comprises sequentially along the optical axis from an object side to an image side: a first lens (L1), a second lens (L2), a third lens (L3), and a fourth lens (L4) that have focal powers, where at least one of the first lens (L1) and the second lens (L2) has a positive focal power; both an object-side surface of the third lens (L3) and an image-side surface of the fourth lens (L4) are concave surfaces; the ImgH of half of the length of the diagonal of an effective pixel area on an imaging surface (S11) of the camera lens and the total effective focus length, f, of the camera lens satisfy ImgH/f > 1. The camera lens has the advantages of an expanded field of view, lens miniaturization, reduced lens sensitivity and correction phase difference, and increased lens imaging quality.

AIR OUTLET STRUCTURE, INDOOR UNIT AND AIR CONDITIONING UNIT

An air outlet structure, indoor unit and air conditioning unit, wherein the air outlet structure comprises an air sweeping cover plate (1), air sweeping blades (2) and a screw cap. The air sweeping cover plate (1) is integratedly installed with the blades (2) and the screw cap, with the air sweeping blades (2) being rotatable relative to the air sweeping cover plate (1). The air outlet structure features a high level of integration, which solves the problem of parts becoming scattered.

CAMERA LENS GROUP

Disclosed is a camera lens group. The camera lens group sequentially comprises, from an object side to an image side of the camera lens group: a first lens (E1) with positive focal power, an object side of which is convex; a second lens (E2) with negative focal power, an image side of which is concave; a third lens (E3) with focal power; a fourth lens (E4) with focal power; a fifth lens (E5) with focal power; and a sixth lens (E6) with focal power, wherein the maximum effective radius DT11 of the object side of the first lens (E1) and the maximum effective radius DT62 of an image side of the sixth lens (E6) satisfy 0.8＜DT11/DT62＜1.2. The camera lens group uses six plastic aspherical lenses and has the characteristics of long effective focal length, good imaging quality and small module size.

Dustproof surface treatment shot blasting machine

The invention discloses a dustproof surface treatment shot blasting machine, and relates to the technical field of shot blasting machines. The dustproof type surface treatment shot blasting machine comprises a machine box and a shot blasting cover installed on the machine box, a conveying pipe used for steel shot backflow conveying is installed on the shot blasting cover, an opening is formed in the upper end of the machine box, a cover plate is connected to the opening in a hinged mode, two T-shaped plates are connected to the interior of the machine box through a moving assembly, and the two T-shaped plates are connected to the lower end of the machine box. Clamping assemblies used for clamping a workpiece are arranged on the opposite sides of the two T-shaped plates, overturning assemblies used for overturning the clamped workpiece are arranged on the T-shaped plates, and the overturning assemblies between the two T-shaped plates are connected through a transmission assembly. According ...

PROJECTION LENS

Provided is a projection lens, comprising a first lens (E1), a second lens (E2), a third lens (E3) and a fourth lens (E4) sequentially arranged from an imaging side to an image source side along an optical axis thereof, wherein the first lens has a positive focal power, a surface thereof on the imaging side being convex; the second lens has a positive focal power or a negative focal power, a surface thereof on the image source side being convex; the third lens has a positive focal power; and the fourth lens has a positive focal power or a negative focal power.

CAMERA LENS

A camera lens, sequentially, from an object side to an image side, comprising: a first lens (E1) having a negative refractive power, of which the object side surface is convex and the image side surface is concave; a second lens (E2) having a positive refractive power, of which the image side surface is convex; a third lens (E3) having a negative refractive power, of which the image side surface is concave; a fourth lens (E4) having a positive refractive power, of which the image side surface is convex; and a fifth lens (E5) having a negative refractive power, of which the object side surface is convex and the image side surface is concave. The camera lens satisfies: 0 < (R3 + R4) / (R3 - R4) < 1.2 and 7 < T12 / T23 < 25, where R3 and R4 are curvature radiuses of the object side surface and the image side surface of the second lens (E2), respectively, T12 is the spacing between the first lens (E1) and the second lens (E2) on an optical axis, and T23 is the spacing between the second lens ...

USE OF YR4DS GENE OF AEGILOPS TAUSCHII IN STRIPE RUST RESISTANCE BREEDING OF TRITICEAE PLANTS

Provided is a Yr4DS gene of Aegilops tauschii and use thereof in stripe rust resistance breeding of Triticeae plants. Said gene has a sequence as shown in SEQ ID NO. 1, SEQ ID NO. 3, SEQ ID NO. 5, SEQ ID NO. 7, SEQ ID NO. 9, or SEQ ID NO.10.

IMAGING LENS

Disclosed is an imaging lens. The lens, from an object side to an image side, successively comprises: a first lens (E1) having positive refractive power, and an object side surface (S1) thereof being a convex surface; a second lens (E2) having negative refractive power, and an image side surface (S4) thereof being a concave surface; a third lens (E3) having refractive power; a fourth lens (E4) having refractive power; and a fifth lens (E5) having negative refractive power. A composite lens of the third lens (E3) and the fourth lens (E4) has negative refractive power. The imaging lens satisfies the following relations: 2.0 Подробнее

OPTICAL IMAGING LENS SET

An optical imaging lens set. The lens set sequentially comprises the following from an object side to an image side along an optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), and a fifth lens (E5), wherein the first lens (E1) has a positive optical power with an object side surface (S1) being a convex surface and an image side surface (S2) being a convex surface, the second lens (E2) has a negative optical power, the third lens (E3) has an optical power with an object side surface (S5) being a concave surface, the fourth lens (E4) has a positive optical power, the fifth lens (E5) has a negative optical power with an object side surface (S9) being a concave surface and an image side surface (S10) being a concave surface, and a spacing T34 between the third lens (E3) and the fourth lens (E4) on the optical axis and a spacing T23 between the second lens (E2) and the third lens (E3) on the optical axis satisfies: 3 ≤ T34/T23 ≤ 7.

OPTICAL IMAGE CAPTURING SYSTEM

The invention provides an optical imaging system. The optical imaging system sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object side to an image side; the curvature radius R13 of the object side surface of the seventh lens and the curvature radius R14 of the image side surface of the seventh lens meet the following condition: 0 lt; r < 14 >/R < 13 > lt; 10; the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging system on the optical axis of the optical imaging system and the half ImgH of the diagonal length of an effective pixel area on the imaging surface meet the following condition: TTL/ImgHlt; 1.3, 2, 3; the effective focal length f7 of the seventh lens and the curvature radius R13 of the object side surface of the seventh lens meet the following condition: 2.0 lt; f7/R13lt; 2.5); the dispersion coefficient V6 of the sixth lens, the dispersion ...

EYEPIECE AND DISPLAY DEVICE COMPRISING SAME

Disclosed is an eyepiece, comprises a lens (L1), the lens containing opposite first surface (S1) and second surface (S2), the first surface being a corresponding surface of a human eye side and the second surface being a corresponding surface of a display element side, wherein the first surface is a Fresnel structure face and the second surface is an aspherical curved face, the Fresnel structure face comprising a plurality of ring bands (Ci) arranged successively, thereby forming a sawtooth surface, the effective focal length (EFL) of the lens satisfying: 35mm˂EFL˂45mm. Further disclosed is a display device comprising the eyepiece.

INTERACTIVE LENS

An interactive lens, sequentially comprising from an object side to an image side: a first lens (E1) having a negative focal power, an image side surface (S2) thereof being a concave surface; a second lens (E2) having a focal power; a diaphragm (STO); a third lens (E3) having a positive focal power, an image side surface (S6) thereof being a convex surface; and a filter (E4), wherein the first lens (E1), the second lens (E2) and the third lens (E3) are all made of plastic; the interactive lens satisfies the following relational expression: (CT1 + CT2)/CT3 < 0.9; and ImgH/(f*TTL) ≥ 0.4mm -1,where CT1 is the centre thickness of the first lens, CT2 is the centre thickness of the second lens, CT3 is the centre thickness of the third lens, ImgH is half of the diagonal line length of an effective pixel region on an imaging surface, f is the effective focal length of the interactive lens, and TTL is the overall length of the interactive lens. The requirements of the conditional expression are ...

OPTICAL IMAGING SYSTEM

An optical imaging system. The optical imaging system successively comprises a first lens (E1), a second lens (E2), a third lens (E3), and a fourth lens (E4) from the object side to the image side along an optical axis. The first lens (E1), the third lens (E3), and the fourth lens (E4) separately have positive focal power or negative focal power. The second lens (E2) has positive focal power, and the image side surface (S4) thereof is a concave surface. The image side surface (S8) of the fourth lens (E4) is a concave surface. The effective semi-diameter DT11 of the object side surface (S1) of the first lens (E1), the effective semi-diameter DT21 of the object side surface (S3) of the second lens (E2), the effective semi-diameter DT32 of the object side surface (S6) of the third lens (E3), the effective semi-diameter DT42 of the image side surface (S8) of the fourth lens (E4), and the entrance pupil diameter (EPD) of the optical imaging system satisfy the condition (DT11+DT21+DT32+DT42)/ ...

TERMINAL DEVICE WAKEUP METHOD AND APPARATUS AND STORAGE MEDIUM

Disclosed is a terminal device wakeup method. The method comprises: acquiring a temperature value of an outside surface of a terminal device; comparing the acquired temperature value of the outside surface of the terminal device with a first temperature threshold and a second temperature threshold that are preset; and if it is detected that the acquired temperature value of the outside surface of the terminal device jumps from the range of the first temperature threshold to the range of the second temperature threshold in set time, performing wakeup to change the working state of the terminal device from a screen-off state to a screen-on state. Also disclosed are a terminal device wakeup apparatus and a storage medium.

Distribution box structure

The invention discloses a distribution box structure which comprises a bottom plate, a front panel, a rear side plate, a left side plate, a right side plate, a cover plate A, a cover plate B and a cover plate C. After the two sides of the front panel, the left side plate, the rear side plate and the right side plate are connected with a regular rectangular frame, the lower portions of the front panel, the left side plate, the rear side plate and the right side plate are fixedly connected with the bottom plate. The upper portion of the left side plate and the upper portion of the right side plate are provided with protruding portions, the protruding portions are covered with the cover plate B, the cover plate A and the cover plate C are located on the two sides of the protruding portions respectively, and the cover plate A, the cover plate B and the cover plate C are connected with the left side plate and the right side plate through bolts. The structure of the distribution box is optimized ...

Movable mechanical device for leveling on site ground

The invention provides a movable mechanical device for field ground leveling, and belongs to the field. According to the technical scheme, the device comprises a frame, a material guiding mechanism and a stirring mechanism, the material guiding mechanism and the stirring mechanism are arranged on the frame, the frame comprises a front supporting frame and a rear supporting frame which are integrally arranged, the material guiding mechanism is arranged on the front supporting frame, the stirring mechanism is arranged on the rear supporting frame, the material guiding mechanism comprises a mounting frame arranged on the side, close to the rear supporting frame, of the front supporting frame, and a mounting plate is arranged at the top of the mounting frame; the stirring mechanism comprises a material barrel arranged on the rear supporting frame, a stirring assembly is arranged in the material barrel, a discharging pipe is arranged at the bottom of the material barrel, and a material guide ...

PHOTOGRAPHY CAMERA

A photography camera successively comprising, along an optical axis from an object side to an image side: a first lens (L1), a second lens (L2), a third lens (L3) and a fourth lens (L4). The first lens (L1) has a negative focal power; the third lens (L3) has a positive focal power; and the second lens (L2) and the fourth lens (L4) both have a focal power, wherein an object side face (S5) of the third lens (L3) is convex, an image side face (S8) of the fourth lens (L4) is concave, a radius of curvature R5 of the object side face (S5) of the third lens (L3) and a radius of curvature R8 of the image side face (S8) of the fourth lens (L4) satisfy 0.7＜R5/R8＜1.2.

NEAR INFRARED LENS

A near infrared lens comprises four groups of lenses along an optical axis from an object space to an image space. A first lens (E1) is a falcate lens with negative power, the convex surface of the first lens facing the object space and being a non-spherical surface. A second lens (E2) is a falcate lens with positive or negative power, the convex surface of the second lens facing the image space. A third lens (E3) is a lenticular, convexo-plane or falcate lens with positive power, when the third lens is convexo-plane or falcate, the convex surface of the third lens facing the object space. A four lens (E4) is a lens with positive power and has a non-spherical surface. By using the near infrared lens, the requirement of imaging quality is met under the condition of ensuring a large aperture and a large field angle, and small distortion is caused.

Information tracing method, system and equipment based on identification code and storage medium

The invention discloses an information tracing method, system and device based on an identification code, and a storage medium. The method comprises the following steps: obtaining a trigger identification code and a tracing path instruction; triggering the identification code to obtain a traced identification code according to the traceability path instruction; obtaining a corresponding identification file according to the traced identification code; the identification file is generated by at least one information template and an identification code; the identification code is generated according to a set rule after the information template is analyzed; the tracing path instruction comprises at least one relationship between the trigger identification code and at least one traced identification code, and/or information in an identification file corresponding to the trigger identification code and an identification file corresponding to the traced identification code. According to the system ...

OPTICAL IMAGING LENS

Disclosed is an optical imaging lens, comprising in order from an object side to an image side along an optical axis: a first lens, a second lens, a third lens and a fourth lens. The first lens has positive focal power, and an object side face thereof is a convex face; the second lens has a positive focal power or a negative focal power, an object side face thereof is a concave face, and an image side face thereof is a convex face; the third lens has a positive focal power, an object side face thereof is a concave face, and an image side face thereof is a convex face; and the fourth lens has a positive focal power or a negative focal power. The effective focal distance f1 of the first lens and the total effective focal distance f of the optical imaging lens satisfy 1.2＜f1/f＜1.8.

ULTRA-WIDE ANGLE CAMERA LENS

An ultra-wide angle camera lens, comprising in sequence from an object side to an image side: a first lens (L1) having negative refractive power, an image side surface (S2) of the first lens (L1) being a concave surface; a second lens (L2) having negative refractive power, an image side surface (S4) of the second lens (L2) being a concave surface; a third lens (L3) having positive refractive power, an object side surface (S5) of the third lens (L3) being a convex surface; a fourth lens (L4) having positive refractive power, an image side surface (S8) of the fourth lens (L4) being a convex surface; and a fifth lens (L5) having negative refractive power, an image side surface (S10) of the fifth lens (L5) being a concave surface. The ultra-wide angle camera lens meets the following relational expression: -0.05 Подробнее

OPTICAL IMAGING SYSTEM

Disclosed is an optical imaging system. The optical imaging system comprises, from an object side to an image side, along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, wherein the first lens has a positive focal power; the second lens has a negative focal power; the third lens has a focal power; the fourth lens has a focal power; the fifth lens has a focal power, and an image side surface thereof is a concave surface; the sixth lens has a positive focal power, and both an object side surface and an image side surface thereof are convex surfaces; and the seventh lens has a negative focal power, and an object side surface thereof is a concave surface. The relationship of half the diagonal length of an effective pixel region on an imaging surface of the optical imaging system (ImgH), the total effective focal length of the optical imaging system (f) and the entrance pupil diameter of the optical imaging system (EPD ...

Super high-rise tube well riser mounting equipment and construction method thereof

The invention relates to the field of building construction, in particular to super high-rise tube well vertical pipe installation equipment and a construction method thereof.The super high-rise tube well vertical pipe installation equipment comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is used for positioning a lower pipeline, and the second positioning assembly is used for positioning an upper pipeline; a connecting shaft is arranged between the first positioning assembly and the second positioning assembly, the axis of the connecting shaft is a straight line, the first positioning assembly comprises two lower clamping plates used for limiting a lower pipeline, the lower clamping plates rotate on the connecting shaft, and a lower torsional spring is arranged between each lower clamping plate and the connecting shaft. And the second positioning assembly comprises a rotating sleeve rotationally connected to the connecting shaft ...

Electrical equipment cabinet with internal environment monitoring structure

The invention discloses an electrical equipment cabinet with an internal environment monitoring structure, relates to the technical field of electrical equipment cabinets, and aims at improving the functions of the current electrical equipment cabinet and better protecting electronic components installed in the electrical equipment cabinet during internal work. At present, abnormal work of most electronic components basically shows disconnection or temperature rise, so that an existing electrical equipment cabinet can monitor the temperature of the components, heat collection of a temperature sensor is general, targeted monitoring cannot be conducted, the electronic components installed inside can be protected, and the service life of the electronic components is prolonged. According to the electrical equipment cabinet, the interior of the electrical cabinet is monitored in a range in the circulating reciprocating motion of the monitoring bin, the monitoring bin can directly make contact ...

PROJECTION LENS

A projection lens, comprising in sequence from the imaging side to the image source side thereof: a first lens (E1) having negative focal power, the imaging side thereof being convex, and the image source side thereof being concave; a reflective optical surface (E2) for bending the light path; a second lens (E3) having positive focal power, the image source side thereof being convex; a third lens (E4) having positive focal power, the imaging side thereof being convex, and the image source side thereof being concave; a fourth lens (E5) having positive focal power; and an optical diaphragm being arranged between the first lens (E1) and the second lens (E3); the projection lens satisfies the following relationship: 0.25 Подробнее

IMAGING LENS

An imaging lens, comprising in order from an object side to an image side: a first lens having positive focal power; a second lens having focal power, wherein an object-side surface thereof is a convex surface and an image-side surface thereof is a concave surface; a third lens having positive focal power, wherein an image-side surface thereof is a convex surface; a fourth lens having focal power; a fifth lens having focal power, wherein an object-side surface thereof is a convex surface; an effective focal length f of the imaging lens and an effective focal length f1 of the first lens satisfy: 5.5 Подробнее