CN113820766B - Lens module, color restoration method thereof and imaging system - Google Patents
Lens module, color restoration method thereof and imaging system Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
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Abstract
The application relates to a lens module and a color restoration method and an imaging system thereof, wherein the lens module comprises: a liquid lens; the liquid lens comprises a plurality of color compensation units, wherein the color compensation units are arranged on one side of the liquid lens close to a target object side by side along the optical axis direction of the liquid lens, each color compensation unit comprises a transparent elastic film cavity and color liquid filled in the elastic film cavity, the color liquid of the color compensation units has different colors, and the color compensation units are variable in shape so that the color pixel deviation of the target object can be compensated after the color compensation units and the liquid lens are overlapped. The lens module can improve the color pixel effect of a target object, so that the color reduction degree of a shot object is more real, and the color effect is more gorgeous.
Description
Technical Field
The application relates to the technical field of image acquisition, in particular to a lens module and a color restoration method and an imaging system thereof.
Background
With the development of times, the requirements of people on image acquisition are increasingly raised, and the lens of the camera is particularly critical to the final image acquisition result. The liquid lens is a novel optical element provided according to the bionics principle, is made of a liquid material, changes the refractive index or the surface curvature radius of the liquid material, changes the focal length of the liquid lens, can realize zooming without a mechanical movement device, and has the advantages of small volume, high response speed, simplicity in operation, no abrasion, long service life, low power consumption and the like, so that the liquid lens has a good application prospect in optical systems such as mobile phones, digital cameras, network cameras, endoscopes and the like.
However, the conventional liquid lens has color pixel deviation during imaging, and cannot truly restore the color of a shot object.
Disclosure of Invention
The present application is directed to a lens module, a color restoration method thereof, and an imaging system, wherein the lens module can improve a color pixel effect of a target object, so that a color restoration degree of a shot object is more real and a color effect is more gorgeous.
In a first aspect, an embodiment of the present application provides a lens module, including: a liquid lens; the liquid lens comprises a plurality of color compensation units, wherein the color compensation units are arranged on one side of the liquid lens close to a target object side by side along the optical axis direction of the liquid lens, each color compensation unit comprises a transparent elastic film cavity and color liquid filled in the elastic film cavity, the color liquid of the color compensation units has different colors, and the shapes of the color compensation units are variable, so that the color pixel deviation of the target object can be compensated after the color compensation units and the liquid lens are overlapped.
In a possible implementation manner, each color compensation unit further comprises a liquid supply device communicated with the elastic film cavity, and in the first state, the liquid supply device supplies color liquid to the elastic film cavity so as to enable the color compensation unit to be in the stretching state; in the second state, the color liquid returns to the liquid supply device from the elastic film cavity, so that the color compensation unit is in a contraction state.
In one possible implementation, the liquid supply device includes: the fixing cavity is internally provided with color liquid, the fixing cavity is provided with a first opening and a second opening, the second opening is communicated with the elastic film cavity, and the periphery of the fixing cavity corresponding to the second opening is also provided with an electromagnetic coil; the pressure regulating pump is communicated with the first opening through a pipeline; and the valve is arranged at the second opening, when the electromagnetic coil is electrified, the valve is opened, the pressure regulating pump drives liquid to flow to the elastic film cavity from the fixed cavity, when the electromagnetic coil is powered off, the valve is closed, and the pressure regulating pump pumps the liquid back to the fixed cavity from the elastic film cavity.
In a possible realization, the fixed chamber is also provided with an electrode, which is electrically connected with the electromagnetic coil.
In a possible implementation manner, the plurality of fixed cavities of the plurality of color compensation units are arranged in parallel through electrodes, wherein the electrode of one fixed cavity comprises a first electrode and a second electrode which are opposite in electrical property, and the electrodes of the other fixed cavities are the first electrode or the second electrode.
In one possible implementation, the color liquids of the plurality of color compensation units are of the same material.
In one possible implementation, the color compensation unit is stretched to a plane with a predetermined thickness.
In a possible implementation manner, the material of the elastic film cavity includes any one of polymethyl methacrylate, polycarbonate, polyimide and polyethylene terephthalate.
In a possible implementation manner, the plurality of color compensation units include a first color compensation unit, a second color compensation unit, and a third color compensation unit, and colors of the color liquids of the first color compensation unit, the second color compensation unit, and the third color compensation unit are red, green, and blue, respectively.
In a second aspect, an embodiment of the present application further provides a color reduction method for a lens module, where the lens module includes a liquid lens and a plurality of color compensation units arranged side by side along an optical axis of the liquid lens on a side of the liquid lens close to a target object, each color compensation unit includes a transparent elastic film cavity and a color liquid filled in the elastic film cavity, and the color liquids of the plurality of color compensation units have different colors, and the color reduction method includes: acquiring a dominant hue of a target object; and adjusting the form of the color compensation unit corresponding to the color according to the color of the main tone, so that the color pixel deviation of the target object can be compensated after the color compensation unit and the liquid lens are superposed.
In one possible implementation, the color restoration method further includes: if the color of the main tone of the target object is the same as the color of any one of the plurality of color compensation units, the color compensation unit controlling the corresponding color is extended in a direction perpendicular to the optical axis, and the remaining color compensation units are contracted in the direction perpendicular to the optical axis.
In one possible implementation, the color restoration method further includes: if the color of the main tone of the target object is the same as the mixed color of some color compensation units among the plurality of color compensation units, the elastic film chambers of some color compensation units are controlled to extend in a direction perpendicular to the optical axis, and the elastic film chambers of the remaining color compensation units contract in a direction perpendicular to the optical axis.
In one possible implementation, obtaining the dominant hue of the target object includes: and acquiring the dominant tone of the target object according to the image of the target object previewed by the liquid lens.
In a third aspect, an embodiment of the present application further provides an imaging system, including: any of the lens modules described above; the lens barrel and the base are connected with each other, an accommodating space for accommodating the lens module is formed by the lens barrel and the base, and the lens barrel is provided with an unthreaded hole corresponding to the lens module along the optical axis direction; the image sensing unit is arranged on one side of the lens barrel far away from the unthreaded hole or fixed on the base and used for converting an optical signal entering the lens module from the unthreaded hole into an electric signal.
According to the lens module, the color reduction method and the imaging system thereof, the lens module is provided with the plurality of color compensation units on one side of the liquid lens close to the target object, and the transparent elastic film cavities of the plurality of color compensation units are respectively filled with the color liquids with different colors, wherein the shape of the color compensation units is changeable, so that the color pixel deviation of the target object can be compensated after the color compensation units and the liquid lens are overlapped. The lens module can improve the color pixel effect of a target object, so that the color reduction degree of a shot object is more real, and the color effect is more gorgeous.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In addition, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.
Fig. 1 is a schematic structural diagram illustrating a lens module provided in an embodiment of the present application when the lens module is in a first state;
fig. 2 is a schematic structural diagram of the lens module shown in fig. 1 in a second state;
fig. 3 is a block flow diagram illustrating a color restoration method for a lens module according to an embodiment of the present disclosure;
fig. 4 shows a schematic structural diagram of an imaging system provided in an embodiment of the present application.
Description of reference numerals:
1. a lens module;
11. a liquid lens; 12. a color compensation unit; 12a, a first color compensation unit; 12b, a second color compensation unit; 12c, a third color compensation unit; 121. an elastic film chamber; 122. a liquid supply device; 123. a fixed cavity; 123a, a first opening; 123b, a second opening; 124. a valve; 125. a pressure regulating pump; e1, a first electrode; e2, second electrode;
2. a lens barrel; 21. a light hole;
3. a base;
4. an image sensing unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 shows a schematic structural diagram of a lens module provided in an embodiment of the present application when the lens module is in a first state, and fig. 2 shows a schematic structural diagram of the lens module shown in fig. 1 when the lens module is in a second state.
As shown in fig. 1 and fig. 2, a lens module 1 provided in the embodiment of the present application includes: a liquid lens 11 and a plurality of color compensation cells 12.
The liquid lens 11 is filled with a colorless liquid, which may be an electrolyte, an oily nonpolar substance, or a mixture of an electrolyte and an oily nonpolar substance, such as mercury and a silicone solution.
The color compensation units 12 are disposed side by side on one side of the liquid lens 11 close to the target object along the optical axis direction of the liquid lens 11, each color compensation unit 12 includes a transparent elastic film cavity 121 and a color liquid filled in the elastic film cavity 121, and the color liquids of the color compensation units 12 have different colors, respectively, wherein the form of the color compensation unit 12 is changeable, so that the color pixel deviation of the target object can be compensated after the color compensation unit 12 and the liquid lens 11 are overlapped.
Specifically, before shooting, the main tone of the target object is obtained according to the image of the target object previewed by the liquid lens, and then the shape of the elastic film cavity of the color compensation unit corresponding to the color is adjusted according to the color of the main tone, so that the color pixel deviation of the target object can be compensated after the color compensation unit is overlapped with the liquid lens.
Herein, "dominant hue" refers to the general tendency of picture colors in a picture. For example, objects of different colors are covered in a piece of golden sunlight, and the objects of different colors are covered with a certain color, so that the objects of different colors all have the same color tendency, and the color phenomenon is the 'dominant hue'. For example, the main color tone is green, and then the form of the color compensation unit 12 in which the green liquid is located is adjusted, so that the green color compensation unit 12 is overlapped in the optical axis direction of the liquid lens 11, and the color compensation units 12 of the other colors cannot be overlapped in the optical axis direction of the liquid lens 11, thereby forming a green liquid lens and further compensating the green pixel deviation of the target object.
According to the lens module provided by the embodiment of the application, the plurality of color compensation units 12 are arranged on one side of the liquid lens 11 close to the target object, and the transparent elastic film cavities 121 of the plurality of color compensation units 12 are respectively filled with the color liquids with different colors, wherein the shape of the color compensation units 12 is changeable, so that the color pixel deviation of the target object can be compensated after the color compensation units 12 and the liquid lens 11 are overlapped. The lens module can improve the color pixel effect of a target object, so that the color reduction degree of a shot object is more real, and the color effect is more gorgeous.
The following describes in detail a specific structure of the lens module 1 according to the embodiment of the present application with reference to the drawings.
According to the principle of colorimetry, most of the colors in the nature can be generated by mixing red light, green light and blue light in a proper proportion, so that the red light, the green light and the blue light are called as three primary colors. Any light can be mixed by red, green and blue lights according to different proportions, which is the principle of three primary colors. For example, red and green are superimposed to give yellow; the green and the blue are superposed to form cyan; the red and the blue are superposed to be bright purple; the red color is white after being superimposed with the green and blue colors.
Thus, in some embodiments, the plurality of color compensation units 12 includes a first color compensation unit 12a, a second color compensation unit 12b, and a third color compensation unit 12c, and the colors of the color liquids of the first color compensation unit 12a, the second color compensation unit 12b, and the third color compensation unit 12c are red, green, and blue, respectively.
In one example, if the color of the main tone of the target object is the same as the color of any one of the plurality of color compensation cells 12, the color compensation cell 12 of the corresponding color is controlled to extend in a direction perpendicular to the optical axis, and the remaining color compensation cells 12 are contracted in the direction perpendicular to the optical axis.
For example, the green lawn of the park is taken as the scene, the green color ratio is bigger in the scene of taking according to the color pixel when previewing the target object, namely, the dominant hue is green, then the lens module controls the second color compensation unit 12b to inject the green liquid into the elastic film cavity 121, make the elastic film cavity 121 flatten and lay in the place ahead of the liquid lens 11, make the light of taking the scene shine on the liquid lens 11 after the green liquid compensation, the green color can be embodied more greatly in the liquid lens 11 focusing imaging, the green can be more gorgeous in the shot photo, the place where partial green light is insufficient can also be compensated, thereby the color pixel effect of imaging is improved.
In another example, if the color of the main tone of the target object is the same as the color mixed by some of the color compensation cells 12 of the plurality of color compensation cells 12, the lens module controls some of the color compensation cells 12 to be extended in a direction perpendicular to the optical axis, and the remaining color compensation cells 12 to be contracted in a direction perpendicular to the optical axis.
For example, the shooting scene is sky or sea, and the cyan in the shooting scene is relatively large, that is, the dominant hue is cyan, which is obtained from the color pixels when the target object is previewed. Because the color of the green and the color of the blue are cyan after being superposed, the second color compensation unit 12b and the third color compensation unit 12c are controlled to inject the green liquid and the blue liquid into the respective elastic film cavities 121 respectively, and are spread and laid in front of the liquid lens 11 in a flattening manner, so that the light of the shot scene is refracted after being compensated by the green liquid and the blue liquid, and then is focused and imaged. At this time, the cyan in the shot picture is more gorgeous, and the part with insufficient cyan light can be compensated, thereby improving the color pixel effect of the imaging.
In some embodiments, the color liquids of the plurality of color compensation units 12 are made of the same material. Alternatively, the colored liquid is distilled water or the like having a color.
In some embodiments, the color compensation unit 12 further comprises a liquid supply device 122 in communication with the elastic film chamber 121, and in the first state, the liquid supply device 122 supplies the color liquid to the elastic film chamber 121, so that the color compensation unit 12 is in the extended state; in the second state, the color liquid is returned from the elastic film chamber 121 to the liquid supply device 122, so that the color compensation unit 12 is in the contracted state.
In some embodiments, the liquid supply 122 includes: a pressure regulating pump 125, a fixed chamber 123 and a valve 124.
The fixing chamber 123 contains color liquid therein, the fixing chamber 123 is provided with a first opening 123a and a second opening 123b, the second opening 123b is communicated with the elastic film chamber 121, and an electromagnetic coil is further provided on the fixing chamber 123 corresponding to the peripheral side of the second opening 123 b.
The pressure-regulating pump 125 communicates with the first opening 123a through a pipe;
the valve 124 is disposed at the second opening 123a, when the electromagnetic coil is energized, the valve 124 is opened, the pressure regulating pump 125 drives the liquid to flow from the fixed chamber 123 to the elastic membrane chamber 121, when the electromagnetic coil is de-energized, the valve 124 is closed, and the pressure regulating pump 125 pumps the liquid from the elastic membrane chamber 121 back to the fixed chamber 123.
In one example, the pressure regulating pump 125 is a hydraulic pump for supplying liquid to the fixed chamber 123 and cooperates with the valve 124 to drive the color liquid to flow back and forth between the fixed chamber 123 and the flexible membrane chamber 121. In another example, the pressure regulating pump 125 is an air pump, and adjusts air pressure according to the opening and closing of the valve 124, so as to drive the liquid to flow back and forth between the fixed chamber 123 and the elastic membrane chamber 121.
In addition, the pressure regulating pump 125 can be any other suitable pump, such as an electrostatic pump (e.g., a peristaltic pump), a zipper actuator, a comb drive, a resonant electrostatic pump, a piezoelectric pump (e.g., flexural piezoelectric), a bimetallic pump, a bistable or tristable pump, an electrowetting pump, a molecular pump, a pump using electroactive polymers, an S-shaped diaphragm actuator, an electromagnetic and thermal actuation pump, etc., as required and not described in detail herein.
The elastic membrane chamber 121 needs to have certain elasticity and be capable of deforming adaptively according to the volume of the color liquid. Optionally, the material of the elastic film cavity 121 includes any one of polymethyl methacrylate, polycarbonate, polyimide, and polyethylene terephthalate.
In some embodiments, the fixed chamber 123 is also provided with an electrode that is electrically connected to the electromagnetic coil.
In some embodiments, the fixed cavities 123 of the color compensation units 12 are arranged in parallel by electrodes, wherein the electrodes of one of the fixed cavities 123 include a first electrode E1 and a second electrode E2, which are opposite, and the electrodes of the other fixed cavities 123 are the first electrode E1 or the second electrode E2.
As shown in fig. 1, in the first color compensation unit 12a, the second color compensation unit 12b and the third color compensation unit 12c, the electrodes of the fixed cavity 123 of the first color compensation unit 12a include a first electrode E1 and a second electrode E2, wherein the first electrode E1 is a common electrode, the electrodes of the fixed cavities 123 of the second color compensation unit 12b and the third color compensation unit 12c are both second electrodes E2, and each of the second electrodes E2 and the first electrodes E1 is respectively connected to the negative end and the positive end of the electromagnetic coil, so as to supply power to the corresponding electromagnetic coil, and further control the opening or closing of the valve 123. With the arrangement, the circuit can be simplified, and the wiring space can be saved.
Fig. 3 is a block flow diagram illustrating a color restoration method for a lens module according to an embodiment of the present disclosure.
As shown in fig. 3, the color restoration method of the lens module according to the embodiment of the present application includes steps S1-S2.
Specifically, the color recovery method includes:
step S1: acquiring a dominant hue of a target object;
step S2: the form of the color compensation unit 12 corresponding to the color of the main tone is adjusted according to the color of the main tone, so that the color pixel deviation of the target object can be compensated after the color compensation unit 12 and the liquid lens 11 are overlapped.
Further, the color restoration method further includes: if the color of the main tone of the target object is the same as the color of any one of the plurality of color compensation units, the color compensation unit controlling the corresponding color is extended in a direction perpendicular to the optical axis, and the remaining color compensation units are contracted in the direction perpendicular to the optical axis.
The following description will take an example in which the color compensation units 12 include a first color compensation unit 12a, a second color compensation unit 12b, and a third color compensation unit 12c, and the colors of the color liquids of the first color compensation unit 12a, the second color compensation unit 12b, and the third color compensation unit 12c are red, green, and blue, respectively.
For example, the green lawn of the park is taken as the scene, the ratio of green to green in the scene is taken according to the color pixel when previewing the target object, namely, the dominant hue is green, then the lens module controls the second color compensation unit 12b to inject green liquid into the elastic film cavity 121, make the elastic film cavity 121 spread and lay in the place ahead of the liquid lens 11, make the light of taking the scene shine on the liquid lens 11 after the green liquid compensation, the green color can be embodied more greatly in the liquid lens 11 focusing imaging, green can be more gorgeous in the shot picture, the place where partial green light is insufficient can also be compensated, thereby the color pixel effect of imaging is improved.
Further, the color restoration method further includes: if the color of the main tone of the target object is the same as the mixed color of some color compensation units among the plurality of color compensation units, the elastic film chambers of some color compensation units are controlled to extend in a direction perpendicular to the optical axis, and the elastic film chambers of the remaining color compensation units contract in a direction perpendicular to the optical axis.
For example, the shooting scene is sky or sea, and the cyan in the shooting scene is relatively large, that is, the dominant hue is cyan, which is obtained from the color pixels when the target object is previewed. Because the color of the green and the color of the blue are cyan after being superposed, the second color compensation unit 12b and the third color compensation unit 12c are controlled to inject the green liquid and the blue liquid into the respective elastic film cavities 121 respectively, and are spread and laid in front of the liquid lens 11 in a flattening manner, so that the light of the shot scene is refracted after being compensated by the green liquid and the blue liquid, and then is focused and imaged. At the moment, the cyan in the shot picture is more gorgeous, and the part with insufficient cyan light is compensated, so that the imaging color pixel effect is improved.
Further, in step S1, the acquiring the dominant hue of the target object includes: the dominant tone of the target object is acquired from the image of the target object previewed by the liquid lens 11. At this time, the plurality of color compensation units 12 shrink in the direction perpendicular to the optical axis, and after the dominant hue of the target object is obtained, the form of each color compensation unit 12 is adjusted according to the color of the dominant hue, so that the color pixel deviation of the target object can be compensated after the color compensation units are overlapped with the liquid lens 11.
Fig. 4 shows a schematic structural diagram illustrating an imaging system provided in an embodiment of the present application.
As shown in fig. 4, an embodiment of the present application further provides an imaging system, including: any one of the lens modules 1, the connecting lens barrel 2 and the base 3, and the image sensing unit 4 as described above.
The lens barrel 2 and the base 3 form an accommodating space for accommodating the lens module 1, and the lens barrel 2 is provided with an optical hole 21 corresponding to the lens module 1 along the optical axis direction. The image sensing unit 4 is disposed on one side of the lens barrel 2 away from the aperture 21 or fixed on the base 3, and is configured to convert an optical signal entering the lens module 1 from the aperture 21 into an electrical signal, so as to obtain a digital image signal. The image sensor unit 4 may be a charge coupled device or a cmos device.
In addition, the imaging system may further include an electromagnetic shielding sleeve sleeved on the outer peripheral side of the base 3 to shield the interference of the external electromagnetic wave to the image sensing unit 4, thereby improving the imaging quality.
In some embodiments, the lens module can be combined with a conventional optical lens made of glass material to exert respective advantages of the conventional optical lens and the liquid lens, so as to improve the imaging effect.
The imaging system can be widely applied to scenes such as bar code reading, package sorting, security and display devices and the like which need to be focused at a plurality of positions, such as scanning equipment, industrial cameras and the like.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. A lens module, comprising:
the liquid lens is used for acquiring the main tone of the target object according to the previewed image of the target object;
the color compensation units are arranged on one side of the liquid lens close to a target object side by side along the optical axis direction of the liquid lens, each color compensation unit comprises a transparent elastic film cavity and color liquid filled in the elastic film cavity, the color liquid of the color compensation units has different colors respectively,
the form of the color compensation unit is variable, and the form of the color compensation unit of the corresponding color is adjusted according to the color of the main tone, so that the color pixel deviation of the target object can be compensated after the color compensation unit and the liquid lens are superposed.
2. The lens module as claimed in claim 1, wherein each of the color compensation units further comprises a liquid supply device in communication with the elastic film chamber, and in the first state, the liquid supply device supplies color liquid to the elastic film chamber to keep the color compensation units in the extended state; and in the second state, the color liquid returns to the liquid supply device from the elastic film cavity, so that the color compensation unit is in a contracted state.
3. The lens module as claimed in claim 2, wherein the liquid supply device comprises:
the fixing cavity is internally provided with color liquid, the fixing cavity is provided with a first opening and a second opening, the second opening is communicated with the elastic film cavity, and the periphery of the fixing cavity corresponding to the second opening is also provided with an electromagnetic coil;
the pressure regulating pump is communicated with the first opening through a pipeline;
the valve is arranged at the second opening, when the electromagnetic coil is electrified, the valve is opened, the pressure regulating pump drives liquid to flow from the fixed cavity to the elastic film cavity, when the electromagnetic coil is powered off, the valve is closed, and the pressure regulating pump pumps the liquid back to the fixed cavity from the elastic film cavity.
4. The lens module as recited in claim 3, wherein the fixing cavity is further provided with an electrode, and the electrode is electrically connected with the electromagnetic coil.
5. The lens module as claimed in claim 4, wherein the plurality of the fixed cavities of the plurality of color compensation units are disposed in parallel via the electrodes, wherein the electrodes of one of the fixed cavities include a first electrode and a second electrode with opposite electrical properties, and the electrodes of the remaining fixed cavities are the first electrode or the second electrode.
6. The lens module as claimed in claim 1, wherein the color liquids of the plurality of color compensation units are made of the same material.
7. The lens module as claimed in claim 2, wherein the color compensation unit is a plane having a predetermined thickness after being extended.
8. The lens module as claimed in claim 2, wherein the material of the elastic film cavity comprises any one of polymethyl methacrylate, polycarbonate, polyimide, and polyethylene terephthalate.
9. The lens module as claimed in claim 1, wherein the plurality of color compensation units include a first color compensation unit, a second color compensation unit and a third color compensation unit, and the colors of the color liquids of the first color compensation unit, the second color compensation unit and the third color compensation unit are red, green and blue, respectively.
10. The color restoration method of the lens module is characterized in that the lens module comprises a liquid lens and a plurality of color compensation units which are arranged side by side along the optical axis direction of the liquid lens on one side of the liquid lens close to a target object, each color compensation unit comprises a transparent elastic film cavity and color liquid filled in the elastic film cavity, and the color liquid of the plurality of color compensation units has different colors respectively;
the color restoration method comprises the following steps:
acquiring a dominant hue of a target object;
and adjusting the form of the color compensation unit of the corresponding color according to the color of the main tone so that the color pixel deviation of the target object can be compensated after the color compensation unit is superposed with the liquid lens.
11. The color reproduction method according to claim 10, further comprising:
if the color of the main tone of the target object is the same as the color of any one of the plurality of color compensation units, controlling the color compensation units of the corresponding color to extend in a direction perpendicular to the optical axis, and the remaining color compensation units to shrink in the direction perpendicular to the optical axis.
12. The color reproduction method according to claim 10, further comprising:
and if the color of the main tone of the target object is the same as the mixed color of at least part of the color compensation units in the plurality of color compensation units, controlling the part of the color compensation units to extend along the direction vertical to the optical axis, and controlling the rest of the color compensation units to shrink along the direction vertical to the optical axis.
13. The color reproduction method according to claim 10, wherein the obtaining of the dominant hue of the target object includes: and acquiring the dominant hue of the target object according to the image of the target object previewed by the liquid lens.
14. An imaging system, comprising:
a lens module as claimed in any one of claims 1 to 9;
the lens barrel and the base are connected with each other to form an accommodating space for accommodating the lens module, and the lens barrel is provided with an optical hole corresponding to the lens module along the optical axis direction;
and the image sensing unit is arranged on one side of the lens barrel, which is far away from the unthreaded hole, or is fixed on the base and is used for converting an optical signal entering the lens module from the unthreaded hole into an electric signal.
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| CH241033A (en) * | 1941-05-25 | 1946-02-15 | Dessauer Friedrich Dr Prof | Optical device having at least one deformable refractive surface. |
| AU2003260825A1 (en) * | 2002-09-19 | 2004-04-08 | Koninklijke Philips Electronics N.V. | Switchable optical element |
| GB0407494D0 (en) * | 2004-04-02 | 2004-05-05 | Koninkl Philips Electronics Nv | Colour correction in a variable focus lens |
| JP4864326B2 (en) * | 2005-01-21 | 2012-02-01 | Ｈｏｙａ株式会社 | Solid-state image sensor |
| JP2008170631A (en) * | 2007-01-10 | 2008-07-24 | Sony Corp | Liquid device, and device and method for manufacturing liquid device |
| JP2010107908A (en) * | 2008-10-31 | 2010-05-13 | Sony Corp | Electro-wetting apparatus, variable focal length lens, optical pickup apparatus, optical record reproduction apparatus, droplet operation apparatus, optical element, zoom lens, imaging apparatus, light modulating device, display, electronic flash apparatus, and method of driving electro-wetting apparatus |
| US9335539B2 (en) * | 2012-01-23 | 2016-05-10 | President And Fellows Of Harvard College | Pixel device and display using liquid ink and elastomers |
| CN109254399A (en) * | 2018-11-02 | 2019-01-22 | 上海酷聚科技有限公司 | A kind of display device and display methods |
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