전기습윤과 전자기력을 이용한 유체 광학 장치 및 이의 구동 방법

The backing used in representation of the specification it is apparent that in order to differently not providing language translators, comprising plurality of representation. In the specification, the term "consists of" or "includes" specification of articles various elements, or several steps which do not necessarily all including interpreted, some are not included and may be some components or, or additional components or step should be interpreted. In addition, a specification ".. Part "," module " means processing units and at least one function and the operation of term, implemented in software or hardware or a combination of hardware and software can be.

Hereinafter, in the embodiment of the present invention are described with reference to the attached drawing various sequences.

Figure 1 shows a method for lubricating fluid optical device to determine the structure of electromagnetic force according to an embodiment of the present invention also electric with dampness and the illustrated drawing, Figure 2 shows a fluid optical device of Figure 1 contains the applied switching to exemplify a camera module are disclosed. Hereinafter, electric optical device according to an embodiment of the present invention about 1 also with dampness a different fluid (100) is described structure of the, 2 also reference the on-sensors other.

The reference also 1, according to an embodiment of the present invention fluid optical device (100) includes a lens section (110) and aperture portion (150) consists of including. For example, according to an embodiment of the present invention fluid optical device (100) is also 2 as shown, cylindrical lens section (110) on top, a disk shape in camera unit (150) can be combined with the, overall cylindrical shape can be formed. And, the fluid optical device (100) includes a variator lens module is applied as shown in fig. 2 for, housing (200) can be coupled to.

More specifically described, as shown in fig. 1, fluid optical device (100) includes, an electromagnetic coil (120), lower transparent conduction layer (130), metal lens chamber (140), intermediate transparent conduction layer (160), spacer (spacer) (165) and upper transparent conduction layer (170) can be by a certain coupling.

I.e., electromagnetic coil (120) upper, lower transparent conduction layer (130) is coupled. Wherein, electromagnetic coil (120) is, magnetic fluid (FerroFluid) (151) configuration for moving, fluid optical device (100) of a disk shape around an optical axis to prevent passage of the light transparent conduction layer (130) can be disposed along the rim of the rotor. I.e., electromagnetic coil (120) voltage is applied, an electromagnetic coil (120) generates the electromagnetic field, the magnetic fluid (151) can be reacted. An electromagnetic coil (120) in order to apply a voltage, fluid optical device (100) includes an electromagnetic coil (120) (not shown) can be comprising applying a voltage to the for squeezing the area. Lower transparent conduction layer (130) is electrically conductive ITO (Indium Tin Oxide) with implementation being glass.

And, lower transparent conduction layer (130) on top of, metal material has hollow cylindrical metal lens chamber (140) is coupled. Wherein, metal lens chamber (140) at the bottom and at the top in order to provide hollow liquid accommodating space formed therein. Liquid receiving spaces are, an electrically conductive fluid (e.g., water) plays a role of a transparent lens (111) and an electrically conductive fluid (111) the remainder of the space taken up by a transparent insulating liquid (e.g., oil) space (112) can be filled. In addition, metal lens chamber (140) inner peripheral surface, as shown in fig. 1, lens chamber (130) from the inner periphery of the insulating layer (Dielectric Layer) (141) and minority layer (Hydrophobic Layer) (142) being extended in this order can be, insulating layer (141) is, lower transparent conduction layer (130) for isolation with metal lens chamber (140) and a lower transparent conduction layer (130) can be formed far. Metal lens chamber metal material (140) electrically conductive lower transparent conduction layer (130) between which a voltage can be applied, fluid optical device (100) the metal lens chamber (140) and a lower transparent conduction layer (130) for applying a voltage to the lens between voltage applying part (115) can be a. The configuration, according to an embodiment of the present invention fluid optical device (100) the lens portion (110) can be formed.

And, lens section (110) of i.e., metal lens chamber (140) on top of, intermediate disc-shaped transparent conduction layer (160) formed on an active region, intermediate transparent conduction layer (160) on top, circular ring-shaped spacer (165) are coupled to, finally spacer (165) of a disk shape on top transparent conduction layer (170) is coupled. The, metal lens chamber (140) intermediate transparent conduction layer (160) is, metal lens chamber (140) intermediate an upper edge of transparent conduction layer (160) attached thereto by means of optical adhesive number can be sealingly engaging the rim of the rotor. Such intermediate transparent conduction layer (160), spacer (165) and upper transparent conduction layer (170) by passing through a combination of transparent conduction layer (160) and upper transparent conduction layer (180) can be liquid flows in a space between the thin channel (155) can be formed, channel (155) circular, the diaphragm having magnetic fluid (FerroFluid) plays a role in light-absorbing (151) can be filled. In addition, channel (155) of i.e., upper transparent conduction layer (170) inner sides, as shown in fig. 1, hydrophobic layer (Hydrophobic Layer) (193) stacked can be formed. The, magnetic fluid (151) is as aforementioned, electromagnetic coil applied voltage (120) an electromagnetic field generated by a channel (155) can be shifted toward the center in the rim of the rotor. The configuration, according to an embodiment of the present invention fluid optical device (100) in camera unit (150) can be formed.

Hitherto, 2 also refers to the optical device according to an embodiment of the present invention fluid and also 1 (100) of established are described. 1 Also shown in fluid optical device (100) for the driving method, also after 3 and 4 describe also refers to less than 1000.

Figure 3 shows a device according to an embodiment of the present invention also contains a surface curvature of lenses example optical fluid are disclosed.

The reference also 3, contained in the liquid filled transparent lens plays a role of an electrically conductive fluid (111) is, as shown on the left side of Figure 3 initially, the surface of the liquid surface tension (i.e., insulating liquid (112) at a boundary) that are rounded form is under or over. I.e., an electrically conductive fluid (111) according to an embodiment of the present invention is fluid optical device (100) as a configuration corresponding lens, in the form of convex lens has a natural.

In Figure 1 as aforementioned, liquid receiving space is metal lens chamber (140) of which inside is at the bottom to the top in order to provide a method for displaying, metal lens chamber (140) is equal to the inner periphery of the inclined surface. Through, an electrically conductive fluid (111) surface of the also 3 as shown, may have wider than the upper, metal lens chamber (140) according to the inclination angle of an inner circumferential surface of an electrically conductive fluid (111) surface area of s402. As well as, and in the embodiment of one short-sends, metal lens chamber (140) vertically formed inclined inner peripheral surface not disapproval.

Then, metal lens chamber (140) and a lower transparent conduction layer (130) between the voltage is applied to, an electrically conductive fluid (111) surface of the curvature change occurs. I.e., as shown in the right of Figure 2, metal lens chamber (140) and a lower transparent conduction layer (130) in the form of convex lens type are a voltage between an electrically conductive fluid (111) on the principle or a concave lens can be changed by an electric form. As well as, and in the embodiment of one short-sends, e.g., metal lens chamber (140) and a lower transparent conduction layer (130) may be achieved with a voltage applied between the micro size, an electrically conductive fluid the (111) surface of the lower rail curvature of may be disclosed.

Figure 4 shows a device according to an embodiment of the present invention also contains to exemplify the optical fluid driving iris of a surface are disclosed.

The reference also 4, channel (155) on the edge of the diaphragm filled with magnetic fluid plays a role in light-absorbing (151) is, in Figure 1 the aforementioned electromagnetic coil (120) voltage is applied, an electromagnetic coil (120) electromagnetic fields generated, as shown in the right of Figure 4, channel (155) moves toward the center of the, a front light optical device (100) of the size of the openings can be gradually reduced.

I.e., in Figure 1 as aforementioned, lens (110) a lower electromagnetic coil (120) is applied voltage, channel (155) on the edge of the filled with magnetic fluid (151) is electromagnetic coil (120) of channel 110b (155) can be moved a distance toward the center of the. Then, an electromagnetic coil (120) when the voltage applied to number, magnetic fluid (151) is in-situ channel (155) can be moved to the rim of the rotor.

For example, an electromagnetic coil (120) particles to the magnitude of the voltage applied to controlled magnetic fluid (151) channel (155) may be achieved with a fine at the center shifted toward the center of, the front light optical device (100) can be sized opening.

Figure 5 shows a method for lubricating fluid optical device according to an embodiment of the present invention indicating the flow of electromagnetic force also electric with dampness method are disclosed. In Figure 5 fluid optical device (100) is, shutter, photographing mode setting button in the functional configuration of user input means such as general camera unit can be, in hereinafter, fluid optical device (100) of Figure 5 to explain flow mainly consisting of less than 1000.

S510 step, fluid optical device (100) via a change request signal to an user input means from a testee.

S520 in, fluid optical device (100) according to input signal group is change request metal lens chamber (140) and a lower transparent conduction layer (130) applies a voltage between.

The, metal lens chamber (140) and a lower transparent conduction layer (130) type are lens plays a role in voltage between the electrically conductive liquid (111) surface of the curvature change occurs. For example, metal lens chamber (140) and a lower transparent conduction layer (130) may be achieved with a voltage applied between the micro size, the an electrically conductive fluid (111) can be curvature of the surface of the lower rail.

S530 in, fluid optical device (100) includes a user unit for video request signal from a testee.

S540 in, fluid optical device (100) according to the input of the request signal is video lens (110) a lower electromagnetic coil (120) applies a voltage to the. For example, a diaphragm size video request signal selection by a user can be spirally size information.

The, for squeezing an electromagnetic coil (120) plays a role in a magnetic voltage type are diaphragm (151) channel (155) move within the substrate. For example, lens (110) a lower electromagnetic coil (120) is applied voltage, channel (155) on the edge of the filled with magnetic fluid (151) is electromagnetic coil (120) of channel 110b (155) can be moved a distance toward the center of the.

For the purposes of disclosure of the present invention in the embodiment is a and in the example, the present invention if one skilled in the range of the present invention idea and having common knowledge of various modification, change, magnetic by percussion, the modified, will change and addition of the following claim must to belong.