LENS OPTICAL SYSTEM

Hereinafter, with reference to the attached drawing of the present invention in the embodiment are detailed as follows. In the present invention describes, a detail description already publicly known techniques or configuration is also a subject matter of invention specifically added input to judge if the description can be omitted if it in part to each other. In addition, the terms used in the specification of the present invention in the embodiment that are as terms used in the order, such as the relevant field can be human or associated depending on said scale. Thus, the terms for definition throughout the content based on the specification will been commanded.

Hereinafter, with reference to the preface is also 1, of the present invention number 1 in the embodiment according to lens optical system is described as follows.

Figure 1 shows a lens of lens optical system in the embodiment according to one of the present invention also are disclosed.

The reference also 1, the system comprises a lens of the present invention, the phase of the sensor (IS) objects corresponding to a subject object lens (L1) between port number 1, number 2 lens (L2), (L3) number 3 lens, lens number 4 (L4), number 5 and number 6 (L6) lens (L5) lens is the lungs. (L1, L2, L3, L4, L5, L6) number 1 to number 6 lens has lenses sensor side sequentially arranged in the nanometer range.

Each lens has a outside each other. In one lens, the object side lens allows light entering the incident surface from the panel a surface corresponding to the substrate. In addition, one lens in, outgoing light from the panel surface is plane from the corresponding sensor side lens of the patterned substrate. The second layer is an Image incident surface side opposite to the object lens in the user specification n Sn1, sensor Sn2 [...] surface display diffuse to the user side. The, number 1 lens (L1) and the user side object represented by first surface S11, S12 is displayed to the user the exit face side sensor. In addition, number 2 (L2) object side lens first surface represented by the user and S21, S22 is displayed to the user the exit face side sensor. In addition, number 3 (L3) object side lens first surface represented by the user and S31, S32 is displayed to the user the exit face side sensor. In addition, number 4 (L4) object side lens first surface represented by the user and S41, S42 is displayed to the user the exit face side sensor. In addition, number 5 (L5) object side lens first surface represented by the user and S51, S52 is displayed to the user the exit face side sensor. In addition, number 6 (L6) object side lens first surface represented by the user and S61, S62 is displayed to the user the exit face side sensor.

Lens optical system comprising the cooking-based (S). (S) (L2) (L3) number 3 lens on diaphragm is number 2 lens positioned between the other. Number 2 lens (L2) when the diaphragm (S) is located sensor side to it extends, disapproval. (S) with respect to the third lens has a light diaphragm is supplied can be leveling.

Lens optical system comprising an optical filter (OF) can be. Optical filter (OF) number 6 (L6) is alinear (IS) can be positioned between the lens. Optical filter (OF) (IS) sensor to sense other than can be a light-blocking. Specifically optical filter (OF) (IS) visible light sensor is sensing infrared band can be a light-blocking Image sensors, sensor (IS) is visible band when detecting infra-Image sensor can be a light-blocking.

Sensor group is (IS) through the light and be a into an Image sensor. Sensor number 1 to number 6 (IS) has a front side opposite to the object lens (L1 provided 6) number 6 (L6) of the sensor mechanism for voltage converters convert current around the lens substrate.

Each lens of lens optical system of the present invention the following properties.

(L1) is part number 1 (-, negative) lens has a refractive power. (S11) the radical axis and a convex lens (L1) side object number 1, the radical axis sensor side (S12) recessed in disclosed. Wherein, the absolutely free radical axis components adjacent to the optical axis portion, in the vicinity of the optical axis of the lens portion in [...] big. Number 1 has lenses has a meniscus shape convex lens (L1). Number 1 lens (L1) (S11) and sensor side (S12) all object side formed into an aspheric surface. Number 1 lens (L1) is made of plastic and, number 1 lens (L1) 1 forming plastic index of refraction. 5 And greater than 1. 6 Less than the preferred.

Number 2 lens (L2) is mechanical (+, positive) has refractive power. Number 2 (S21) (L2) the radical axis object side lens convex disclosed. Number 2 lens (L2) (S21) and sensor side (S22) all object side formed into an aspheric surface. Lens (L2) is formed of a conformable plastic material is number 2, number 2 (L2) lens forming plastic index of refraction 1. 5 And greater than 1. 6 Less than the preferred.

Number 3 (L3) is mechanical (+, positive) lens has a refractive power. A convex lens (L3) number 3 (S31) and the radical axis object side, sensor side (S32) radical axis also convex disclosed. (S31) and sensor side (S32) number 3 (L3) object side lens all formed into an aspheric surface. (L3) is number 3 lens is formed of plastic material, forming a plastic lens (L3) number 3 1 index of refraction. 5 And greater than 1. 6 Less than the preferred.

The part number 4 (L4) (-, negative) lens has a refractive power. The radical axis number 4 (L4) (S41) and a convex object side lens, in the radical axis [...] peripheral concave form. The number 4 (L4) (S41) in the object side lens having the entire [...] generally concave or, reference to the radical axis has a positive radius of curvature. The radical axis side (S42) number 4 (L4) sensor lens recessed in disclosed. Number 4 (L4) (S41) and sensor side (S42) object side lens all formed into an aspheric surface.

Lens number 4 (L4) is plastic material seal and disposed therein. Lens number 4 (L4) is formed at an outer portion of refractive index material lens number 1, 2, 3, 5, 6. Specifically, number 4 (L4) lens has a refractive index 1. 6 Or more fiber reinforced plastic seal and disposed therein. More preferably, number 4 (L4) lens has a refractive index 1. 65 Or more can be made. On the other hand, number 1, 2, 3, 5, 6 lens refractive index 1. 6 Hereinafter in can be made. Specifically, number 1, 2, 3, 5, 6 lens refractive index 1. 5 Or more and 1. 6 Hereinafter in can be made.

Number 5 (L5) is mechanical (+, positive) lens has a refractive power. Number 5 (L5) in the radical axis concave object side lens (S51), the radical axis side sensor (S52) convex disclosed. Number 5 (L5) (S51) and sensor side (S52) object side lens all formed into an aspheric surface. Number 5 (L5) is formed of a conformable plastic material includes a lens, lens forming number 5 (L5) plastic index of refraction 1. 5 And greater than 1. 6 Less than the preferred.

Number 6 (L6) includes a part (-, negative) lens has a refractive power. Number 6 (L6) (S61) and the radical axis object side lens convex, concave form [...] peripheral in the radical axis. The number 6 (L6) (S61) in the object side lens having the entire [...] generally concave or, reference to the radical axis has a positive radius of curvature. The radical axis side (S62) number 6 (L6) sensor lens recessed in disclosed. Number 6 (L6) (S61) and sensor side (S62) object side lens all formed into an aspheric surface. Number 6 (L6) is formed of a conformable plastic material includes a lens, lens forming number 6 (L6) plastic index of refraction 1. 5 And greater than 1. 6 Less than the preferred.

In addition, the system comprises a lens of the present invention satisfy an researched below.

1<>Researched

-1. 00<<-0 Tan θ / f. 80

Wherein, θ of optical distance between a node group is diagonal and, f group is distance focus of optical system are disclosed.

If satisfying researched 1, lens optical system has a wide angle can be the digital. The distance between the is diagonal in the embodiment 120. 0Degree nbits performance as a wide angle. The such as in the embodiment, the angle of view (θ) focal length (f) is sufficiently large in 1 extracts a range satisfying preferably. If, 1 focal length (f) is a lower limit of an entire track length (TTL) deviating from the lens optical system if so long that extracts is longer to be coated. In addition, extracts a focal length (f) if an upper limit of spherical aberration and coma aberration is increased from no 1 is equal to an optical performance.

2<>Researched

4. 0<TTL/BFL<6. 0

Wherein, TTL is number 1 (L1) and (S11) sensor to distances on object side lens optical axis, BFL number 6 (L6) sensor side (S62) sensor to distances on lens optical axis are disclosed.

If a 2 extracts a, at least one track distance (TTL) encoded optical lens system is number one. The optical lens system of the present invention can be mounted camera module is combined. A camera module is mounted electronic device guide shafts to the print...copyright 2001.

3<>Researched

-1. 7<<-1 F1/f. 0

Wherein, f1 said number 1 (L1) and the lens focal length, f group is distance focus of optical system are disclosed.

If 3 extracts a satisfying, excellent optical performance while small number 1308. tens of wide-angle lens.

4<>Researched

50<(60<V1 + V2 + V3)/3

Wherein, said number 1 (L1) and an Abbe number of the lens (Abbe number) and V1, V2 is said number 2 (L2) from the Abbe's number possibility and lens, the lens (L3) said number 3 V3 of Abbe number disclosed.

Number 1 lens (L1), (L2) (L3) average Abbe number 3 and number 2 lens lens can be made is at least 50. The, expansion of third lens has a repeater can. In addition, this configuration can be due to a low number tank cost gold disclosed.

5<>Researched

30. 0Deg<CRA (MAX)<35. 0Deg

Wherein, CRA (MAX) is normal to said lens optical system of incidence of [...] (chief ray angle) among others.

If researched satisfies 5, while the pin is tens of wide-angle lens has excellent optical performance.

6<>Researched

0. 15<<FSL/TTL 0. 3

Wherein, the FSL said number 1 (L1) in said diaphragm (S) (S11) between the optical axis of the object side lens distances on and, TTL (S11) number 1 (L1) to the object side lens optical axis distances on sensor are disclosed.

6 Extracts a diaphragm defining the position of the lens optics (S) are disclosed. If satisfying researched 6, number 1 lens (L1) (L2) on diaphragm (S) approximately equal to between lens near number 2.

Also shown in table 1 below optical properties of lens optical system of the present invention number 1 in the embodiment according to described are disclosed.

Said table lens surface which receives lens surface being a non-spherical surface, indicated * exhibits. The radius of curvature of the surface of said table and corresponding r, d is the optical axis of the object is the surface of a corresponding side on thick and a numbers, corresponding to the surface of the sensor side corresponding lens at the exit face of cases where the distance between the following elements (lens, iris or filter) on are disclosed. The S22 of number 2 (L2) (L2) (S22) d is number 2 and number 3 on the sensor side lens lens lens (L3) positioned between the big distance between an iris. In addition, d is number 6 (L6) (S62) S62 of number 6 (L6) and sensor lens side after big distance between lens positioned on the filter. N is a corresponding and refractive index of the lens, and f is the focal length of a corresponding, an Abbe number of the lens which receives V (Abbe number) are disclosed. Wherein r, d and f mm distance units are disclosed.

Focal Length (F) changes of optical lens focal length and crab, CRA (chief ray angle) of optical incidence of [...] group is normal, the TTL (total track length) number 1 (L1) of the third lens has a track distance to object side lens optical axis (S11) as specifically distances on and sensor, DFOV distance between group is extended from the optical system are disclosed. Wherein F and TTL mm and of units, and the angles of the CRA DFOV (degree) also are disclosed.

1 Lens lens of optical system transfers aspherical surface is also shown in the equations of the present invention number 1 in the embodiment according to satisfy an aspheric equation.

<Expressions>

Wherein, in the optical axis direction from apex to group is z distance, distance in one direction perpendicular to an optical axis is y exhibits. The lens is vertex radius of curvature R in, allows a constant K is exhibits (conic constant). In addition, A₂ To A₁₂ Each of aspheric coefficient is.

Also shown in table 1 below a table of aspherical surface of the lens optical system of the present invention number 1 in the embodiment according to [...] are disclosed.

The two table also 1 and on the reference, of each lens of the present invention number 1 in the embodiment according to third lens has the aforementioned characteristics other.

In the embodiment of table 1 to 6 below the researched calculates a value of an intervening lens optical system are disclosed.

1 To 6 are shown in the table of the present invention number 1 in the embodiment as shown with said lens optical system has a researched satisfies both can be know.

Hereinafter, with reference to the preface is also 2, of the present invention number 2 in the embodiment according to lens optical system is described as follows.

Figure 2 shows a lens of lens optical system in the embodiment according to one of the present invention also are disclosed.

Also shown in table 2 below the optical properties of lens optical system of the present invention number 2 in the embodiment according to described are disclosed.

Said table lens surface which receives lens surface being a non-spherical surface, indicated * exhibits. The radius of curvature of the surface of said table and corresponding r, d is the optical axis of the object is the surface of a corresponding side on thick and a numbers, corresponding to the surface of the sensor side corresponding lens at the exit face of cases where the distance between the following elements (lens, iris or filter) on are disclosed. The S22 of number 2 (L2) (L2) (S22) d is number 2 and number 3 on the sensor side lens lens lens (L3) positioned between the big distance between an iris. In addition, d is number 6 (L6) (S62) S62 of number 6 (L6) and sensor lens side after big distance between lens positioned on the filter. N is a corresponding and refractive index of the lens, and f is the focal length of a corresponding, an Abbe number of the lens which receives V (Abbe number) are disclosed. Wherein r, d and f mm distance units are disclosed.

Focal Length (F) changes of optical lens focal length and crab, CRA (chief ray angle) of optical incidence of [...] group is normal, the TTL (total track length) number 1 (L1) of the third lens has a track distance to object side lens optical axis (S11) as specifically distances on and sensor, DFOV distance between group is extended from the optical system are disclosed. Wherein F and TTL mm and of units, and the angles of the CRA DFOV (degree) also are disclosed.

Also shown in 2 of the present invention number 2 in the embodiment according to lens lens of optical system transfers aspherical surface is aspheric equations then satisfy an equation.

<Expressions>

Wherein, in the optical axis direction from apex to group is z distance, distance in one direction perpendicular to an optical axis is y exhibits. The lens is vertex radius of curvature R in, allows a constant K is exhibits (conic constant). In addition, A₂ To A₁₂ Each of aspheric coefficient is.

Also shown in table 2 below a table of aspherical surface of the lens optical system of the present invention number 2 in the embodiment according to [...] are disclosed.

The two and on the reference table 2 also, of each lens of the present invention number 2 in the embodiment according to third lens has the aforementioned characteristics other.

In the embodiment of table 1 to 6 below the researched calculates a value of an intervening lens optical system are disclosed.

1 To 6 are shown in the table of the present invention number 2 in the embodiment as shown with said lens optical system has a researched satisfies both can be know.

Hereinafter, with reference to the preface is also 3, of the present invention number 3 in the embodiment according to lens optical system is described as follows.

Figure 3 shows a lens of lens optical system in the embodiment according to one of the present invention also are disclosed.

Also shown in table 3 below the optical properties of lens optical system of the present invention number 3 in the embodiment according to described are disclosed.

Said table lens surface which receives lens surface being a non-spherical surface, indicated * exhibits. The radius of curvature of the surface of said table and corresponding r, d is the optical axis of the object is the surface of a corresponding side on thick and a numbers, corresponding to the surface of the sensor side corresponding lens at the exit face of cases where the distance between the following elements (lens, iris or filter) on are disclosed. The S22 of number 2 (L2) (L2) (S22) d is number 2 and number 3 on the sensor side lens lens lens (L3) positioned between the big distance between an iris. In addition, d is number 6 (L6) (S62) S62 of number 6 (L6) and sensor lens side after big distance between lens positioned on the filter. N is a corresponding and refractive index of the lens, and f is the focal length of a corresponding, an Abbe number of the lens which receives V (Abbe number) are disclosed. Wherein r, d and f mm distance units are disclosed.

Focal Length (F) changes of optical lens focal length and crab, CRA (chief ray angle) of optical incidence of [...] group is normal, the TTL (total track length) number 1 (L1) of the third lens has a track distance to object side lens optical axis (S11) as specifically distances on and sensor, DFOV distance between group is extended from the optical system are disclosed. Wherein F and TTL mm and of units, and the angles of the CRA DFOV (degree) also are disclosed.

3 Lens lens of optical system transfers aspherical surface is also shown in the equations of the present invention number 3 in the embodiment according to satisfy an aspheric equation.

<Expressions>

Wherein, in the optical axis direction from apex to group is z distance, distance in one direction perpendicular to an optical axis is y exhibits. The lens is vertex radius of curvature R in, allows a constant K is exhibits (conic constant). In addition, A₂ To A₁₂ Each of aspheric coefficient is.

Also shown in table 3 below a table of aspherical surface of the lens optical system of the present invention number 3 in the embodiment according to [...] are disclosed.

The two reference table 3 and on the substrate also, of each lens of the present invention number 3 in the embodiment according to third lens has the aforementioned characteristics other.

In the embodiment of table 1 to 6 below the researched calculates a value of an intervening lens optical system are disclosed.

1 To 6 are shown in the table of the present invention number 3 in the embodiment as shown with said lens optical system has a researched satisfies both can be know.

Hereinafter, with reference to the preface is also 4, of the present invention number 4 in the embodiment according to lens optical system is described as follows.

Figure 4 shows a lens of lens optical system in the embodiment according to one of the present invention also are disclosed.

Also shown in table 4 below the optical properties of lens optical system of the present invention number 4 in the embodiment according to described are disclosed.

Said table lens surface which receives lens surface being a non-spherical surface, indicated * exhibits. The radius of curvature of the surface of said table and corresponding r, d is the optical axis of the object is the surface of a corresponding side on thick and a numbers, corresponding to the surface of the sensor side corresponding lens at the exit face of cases where the distance between the following elements (lens, iris or filter) on are disclosed. The S22 of number 2 (L2) (L2) (S22) d is number 2 and number 3 on the sensor side lens lens lens (L3) positioned between the big distance between an iris. In addition, d is number 6 (L6) (S62) S62 of number 6 (L6) and sensor lens side after big distance between lens positioned on the filter. N is a corresponding and refractive index of the lens, and f is the focal length of a corresponding, an Abbe number of the lens which receives V (Abbe number) are disclosed. Wherein r, d and f mm distance units are disclosed.

Focal Length (F) changes of optical lens focal length and crab, CRA (chief ray angle) of optical incidence of [...] group is normal, the TTL (total track length) number 1 (L1) of the third lens has a track distance to object side lens optical axis (S11) as specifically distances on and sensor, DFOV distance between group is extended from the optical system are disclosed. Wherein F and TTL mm and of units, and the angles of the CRA DFOV (degree) also are disclosed.

4 Lens lens of optical system transfers aspherical surface is also shown in the equations of the present invention number 4 in the embodiment according to satisfy an aspheric equation.

<Expressions>

Wherein, in the optical axis direction from apex to group is z distance, distance in one direction perpendicular to an optical axis is y exhibits. The lens is vertex radius of curvature R in, allows a constant K is exhibits (conic constant). In addition, A₂ To A₁₂ Each of aspheric coefficient is.

Also shown in table 4 below a table of aspherical surface of the lens optical system of the present invention number 3 in the embodiment according to [...] are disclosed.

The two table also 4 and on the reference, of each lens of the present invention number 4 in the embodiment according to third lens has the aforementioned characteristics other.

In the embodiment of table 1 to 6 below the researched calculates a value of an intervening lens optical system are disclosed.

1 To 6 are shown in the table of the present invention number 4 in the embodiment as shown with said lens optical system has a researched satisfies both can be know.

Or more, in the embodiment of the present invention against lens optical system are described. The present invention refers to the preface is limited to in the embodiment described above has the drawing and, in view of the present invention in various modifications and deformable and flawless person with skill in the art will. The specification of the present invention range the claim of claim as well as on others should evenly defined by.