CN117471658A - Optical lens, camera module and electronic equipment - Google Patents
Optical lens, camera module and electronic equipment Download PDFInfo
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- CN117471658A CN117471658A CN202311812999.5A CN202311812999A CN117471658A CN 117471658 A CN117471658 A CN 117471658A CN 202311812999 A CN202311812999 A CN 202311812999A CN 117471658 A CN117471658 A CN 117471658A
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- light absorber
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
Abstract
The application provides an optical lens, camera module and electronic equipment, optical lens includes lens mount and at least one lens, the lens sets up in the lens mount, wherein, doping has the light absorber in at least one lens, the light absorber is correlated with one or more in the structure of lens, the optical design of lens and the structure of lens mount, the parameter of the structure of lens includes one or more in lens number, the lens shape, the parameter of the optical design of lens includes one or more in effective focal length, the total length of lens, angle of field and the diaphragm number, the parameter of the structure of lens mount includes one or more in the head size of lens mount, the mounted position of lens mount. The optical lens can be doped with a related light absorber according to the requirement, so that the projection of light rays with specific colors on an imaging surface is weakened or eliminated, and the requirement on the imaging effect is met.
Description
Technical Field
The application relates to the field of optical imaging, in particular to an optical lens, a camera module and electronic equipment.
Background
Along with the rapid development of the related technology of the camera module, the requirements of people on the shooting effect are higher and higher. The existing electronic devices such as mobile phones and tablet personal computers are generally provided with a plurality of optical lenses, and the optical lenses are respectively used for meeting different shooting requirements.
In the actual shooting process, the incident light rays pass through the optical lens to form images, but the incident light rays can generate multiple unnecessary reflections inside the light ray lens, and the unnecessary light rays finally form unnecessary projections on the imaging surface, so that various problems affecting the imaging quality are caused.
Disclosure of Invention
The application provides an optical lens, a camera module and electronic equipment, solves the technical problem that unnecessary projection can appear when the existing optical lens forms images, and the image quality is affected.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in a first aspect, an optical lens is provided, including a lens holder and at least one lens, where the lens is disposed in the lens holder, and at least one lens is doped with a light absorber, where the light absorber is related to one or more of a structure of the lens, an optical design of the lens, and a structure of the lens, and a parameter of the structure of the lens includes one or more of a number of lenses, a shape of the lens, and a parameter of the optical design of the lens includes one or more of an effective focal length, a total lens length, an angle of view, and an f-number, and a parameter of the structure of the lens holder includes one or more of a head size of the lens holder, and a mounting position of the lens holder.
The light path of the incident light is specific under the specific lens structure, the optical design of the lens and the lens base structure, so that the color of the redundant light formed by multiple reflections in the lens is also specific, and the above-mentioned "the light absorber is related to one or more of the lens structure, the optical design of the lens and the lens base structure" means that the light absorber doped in the lens is also specific under the above-mentioned specific parameter, i.e. the color of the light absorbed by the optical lens is related to one or more of the lens structure, the optical design of the lens and the lens base structure in the optical lens, so that the optical lens can dope the related light absorber according to the requirement, thereby weakening or eliminating the projection of the light with the specific color on the imaging surface, and meeting the requirement on the imaging effect. The specific color may be the color of the excessive light, or may be a color related to the color of the excessive light. The method does not increase the occupation of space, can not cause the picture to be frosted, is not limited by the structure of the lens, and improves the imaging quality.
In one embodiment of the first aspect, the light absorber is configured to absorb light of a color that would form an unnecessary projection on the imaging surface, so as to reduce the color of the unnecessary projection formed by the unnecessary light on the imaging surface, and improve the imaging effect.
In one embodiment of the first aspect, the optical lens includes a plurality of lenses arranged along an axis of the lens mount in the lens mount to enhance photographing effect. Wherein at least one of the plurality of lenses is doped with a light absorber to absorb light that would form an unnecessary projection on the imaging surface.
In one embodiment of the first aspect, the light absorber is doped in a lens in which there are multiple reflections of the light that ultimately form an unnecessary projection on the imaging surface. The reflection light is absorbed in the generation stage of the redundant light, so that the brightness of the redundant light is greatly reduced, and the imaging quality is improved.
In one embodiment of the first aspect, the plurality of lenses includes, in order along the incident direction of the light, a first lens doped with a colorant associated with an apparent color of an electronic device to which the optical lens is applied, and a second lens … … nth lens doped with a light absorber in at least one of the second lens … … nth lens. The color lens is formed by doping the coloring agent in the first lens, so that the appearance color of the optical lens is stable, multiple verification experiments are not needed, the appearance requirements of the industrial design of the electronic equipment on the optical lens can be quickly matched, and time and labor are saved.
In one embodiment of the first aspect, the light absorber is used to absorb light rays that form ghost images and/or flare on the imaging surface, and the optical lens can reduce the color of the ghost images and flare on the imaging surface by using a lens doped with the light absorber.
In one embodiment of the first aspect, the lens includes an optical portion and a mechanism portion disposed around an edge of the optical portion, the optical portion is configured to allow light to pass therethrough, the mechanism portion is connected to the lens holder, the lens holder shields the mechanism portion in an incident direction of the light, the light absorber includes a first dye doped in the optical portion and/or a second dye doped in the mechanism portion, the first dye is configured to absorb light that is reflected multiple times in the optical portion to form a ghost image on the imaging surface, and the second dye is configured to absorb light that is reflected multiple times in the mechanism portion to form a flare on the imaging surface. The unnecessary light forming the projection on the imaging surface may be formed by multiple reflection in the optical portion or multiple reflection in the mechanical portion, and when the lens is doped with the light absorber, the optical portion and the mechanical portion may be respectively set to the corresponding colors according to the type of the unnecessary projection, so that the unnecessary light is absorbed in a targeted manner, the absorption efficiency is improved, and the influence on the light of normal projection is reduced.
In one embodiment of the first aspect, when the light absorber includes the first dye or includes the first dye and the second dye, a mass ratio of the first dye in the optical portion is 0.02% -0.05% so as to avoid affecting the incident light beam passing through the lens and the lens forming.
In one embodiment of the first aspect, when the light absorber includes the first dye and/or the second dye, a concentration of the second dye in the mechanism portion is greater than a concentration of the first dye in the optical portion to enhance an absorbing effect of stray light.
In one embodiment of the first aspect, the optic is bonded to the mechanism. During processing, the optical parts and the mechanism parts with various colors can be prepared first, and then the optical parts with proper colors are selected for bonding according to imaging requirements, so that the rapid processing of the lens is facilitated.
In one embodiment of the first aspect, the optical portion is formed inside the mechanism portion by injection molding to achieve stable connection of the optical portion to the mechanism portion.
In one embodiment of the first aspect, the mechanism portion is formed on the outer peripheral side of the optical portion by injection molding to achieve stable connection of the optical portion and the mechanism portion.
In one embodiment of the first aspect, the number of lenses is greater than or equal to 4, the effective focal length of the lenses is 2.47-3mm, the field angle of the lenses is greater than 75 ° and less than or equal to 90 °, the f-number is less than 2.2, the head diameter of the lens mount is less than 2.2mm, the lens mount is mounted in front of the second lens is doped with a light absorber, the light absorber comprises a second dye, and the second dye is red to reduce the green arc color on the imaging surface.
In one embodiment of the first aspect, the number of the lenses is greater than or equal to 6, the outer surface of the lenses is a convex curved surface, a central angle corresponding to the curved surface is greater than 70 °, the total length of the lenses is 5.5-9mm, the angle of view of the lenses is greater than 78 ° and less than 85 °, the lenses are installed at the rear position, the first lenses are doped with a light absorber, the light absorber comprises a first dye and a second dye, and the first dye and the second dye are both yellow-green to lighten the ghost image color on the imaging surface.
In a second aspect, an image capturing module is provided, including the optical lens described in the above embodiments. The imaging module can improve the acquired imaging quality by arranging the optical lens.
In a third aspect, an electronic device is provided, including an image capturing module as described in the above embodiments. The electronic equipment improves shooting effect by setting the camera module, improves user experience, and has more aesthetic appearance.
Drawings
FIG. 1 is a cross-sectional view of a conventional optical lens;
FIG. 2 is a diagram of an image captured by an optical lens in the prior art, wherein unnecessary projections are ghost images;
FIG. 3 is a view of an image captured by another conventional optical lens, wherein unnecessary projection is stray light;
FIG. 4 is a partial exploded view of an electronic device provided in an embodiment of the present application;
FIG. 5 is a cross-sectional view of an optical lens according to an embodiment of the present disclosure, wherein at least one lens is doped with a light absorber;
FIG. 6 is a schematic diagram of the optical path of the optical lens of FIG. 5;
FIG. 7 is a cross-sectional view of an optical lens according to an embodiment of the present application, wherein the lens includes an optical portion and a mechanism portion;
FIG. 8 is a cross-sectional view of an optical lens in an embodiment of the present application, wherein the optical portion is doped with a first dye;
FIG. 9 is a cross-sectional view of an optical lens in an embodiment of the present application, wherein the mechanism portion is doped with a second dye;
FIG. 10 is a cross-sectional view of an optical lens according to an embodiment of the present application, wherein the optical portion is doped with a first dye and the mechanical portion is doped with a second dye;
FIG. 11 is a cross-sectional view of an optical lens according to one embodiment of the present application, wherein a first lens is doped with a colorant and a second lens is doped with a light absorber;
FIG. 12 is a cross-sectional view of an optical lens according to one embodiment of the present application, including four lenses;
fig. 13 is a cross-sectional view of an optical lens according to another embodiment of the present application, including six lenses.
Reference numerals illustrate:
100', an optical lens; 10', a lens holder; 20', a lens;
100. a camera module; 200. an optical lens; 10. a lens base; 11. a lens barrel; 12. a spacer ring; 13. a light shielding sheet; 20. a lens; 21. an optical unit; 22. a mechanism section; 90a, incident light; 90b, reflecting light; 90c, redundant light; 300. a photosensitive element; 800. an equipment body; 901. ghost images; 902. stray light.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. For example, the first limiting portion and the second limiting portion are only for distinguishing different limiting portions, and are not limited in sequence. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
In this application, the words "in one embodiment" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "in one embodiment" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word "in one embodiment" or "for example" is intended to present the relevant concepts in a concrete fashion.
In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "connected," and the like are to be construed broadly, and may be fixedly attached, detachably attached, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples.
Along with the rapid development of the related technology of the camera module, the requirements of people on the shooting effect are higher and higher. The existing electronic devices such as mobile phones and tablet personal computers are generally provided with a plurality of optical lenses, and the optical lenses are respectively used for meeting different shooting requirements.
As shown in fig. 1, the optical lens 100' includes a lens holder 10' and a lens 20', wherein the lens 20' is transparent and is mounted in the lens holder 10 '. In the actual photographing process, the incident light rays are imaged through the lens 20', the portion of the lens 20' for transmitting the light rays forms an optical area of the lens 20', and the portion of the lens 20' for being mounted with the lens mount 10' and shielded by the lens mount 10' in the incident direction of the incident light rays forms a mechanism area of the lens 20 '. However, a portion of the incident light may cause multiple unwanted reflections inside the lens 20' to form unwanted light, which eventually forms unwanted projections on the imaging surface, resulting in various problems affecting the imaging quality. As shown in connection with fig. 2 and 3, the usual unwanted projections are ghost images (Ghost or Ghost Image) 901 and Flare (Flare) 902, wherein ghost images 901 refer to multiple reflections within the optical zone by a portion of the light rays incident on the optical zone surface of the lens 20', resulting in one or more ghost phenomena on the final imaging plane that are different from the original object location and are typically blurred. The ghost image 901 is generally darker and may reduce the contrast and sharpness of the image, especially in the presence of high contrast or intense light sources. The currently known improvement method of the ghost image 901 mainly comprises providing an ultra-low reflection coating on the lens 20', but the ultra-low reflection coating can affect the color of the improved lens 20', if the lens 20' is the first lens 20' of the optical lens 100', the color change can affect the consistency of the appearance of the lens 20' and the electronic device, and the number of ultra-low reflection coating layers is large, which can result in serious blur of the photographed image, so that only a slight improvement of part of the ghost image 901 can be selected to ensure the consistency of the appearance colors of the optical lens 100' and the electronic device, and the influence on the quality of the image is reduced, and the overall improvement effect of the ghost image 901 is not good. Stray light 902 refers to the phenomenon that light which should pass through lens 20' and be focused on the imaging surface enters the mechanism area during the imaging process, and becomes "redundant" after being reflected by the mechanism area for many times, and is projected onto the imaging surface, so that an unwanted bright area, halation or reduction of the overall contrast ratio is generated on the imaging surface. The veiling glare 902 can affect the detailed appearance and color accuracy of the image, making the image hazy or overexposed. The currently known improvement method of the stray light 902 mainly uses the techniques such as ink-coating and sand-blasting on the lens 20', but the techniques are limited by the ink-coating machine, the existing technological conditions, the size of the lens 20', and the like, and the improvement effect on the stray light 902 is not good.
In addition, in order to achieve a better appearance effect of the electronic device, there is a demand for an appearance color of the lens 20 'of the optical lens 100' when the industrial design (Industrial Design, ID) of the electronic device is performed. The currently known color adjustment and control method of the lens 20' is to adjust the film coating system of the lens 20', and the film coating after adjusting the film coating system is required to satisfy the basic functions of the film coating, such as anti-reflection, anti-glare, and the like, and also to present the appearance color matched with the appearance of the electronic device, however, when the same appearance color needs to be presented, the film coating systems required by the optical lenses 100' with different shapes and sizes are inconsistent, so that multiple rounds of verification are often required to confirm the film coating color of the film coating, and the time and labor cost are high.
In order to solve the above-mentioned problems, referring to fig. 4, an electronic device is provided in an embodiment of the present application, which includes a device body 800 and the camera module 100 mounted on the device body 800. The electronic device can be a device with a photographing or camera shooting function, such as a mobile phone, a tablet computer, a notebook computer, a television, a vehicle-mounted device, a wearable device and the like.
The embodiment also provides an image capturing module 100, which includes the optical lens 200 and a photosensitive element 300 connected to the optical lens 200, wherein the photosensitive element 300 is disposed on an image side of the optical lens 200. The camera module 100 in the application can be used as a rear camera of an electronic device, at this time, the camera module 100 can be installed at the upper left corner, the middle upper portion or the upper right corner of the back of the electronic device, the camera module 100 can also be used as a front camera of the electronic device, at this time, the camera module can be installed at the upper left corner, the middle upper portion or the upper right corner of the front of the electronic device, and no specific limitation is made here.
The working principle of the camera module 100 is as follows: light reflected by a photographed object is incident on the optical lens 200 as incident light, an optical image is generated and projected onto a photosensitive surface of the photosensitive element 300, and the photosensitive element 300 converts the optical image into an electrical signal, i.e., an analog image signal, and transmits the electrical signal to a processor of an electronic device.
The embodiment of the application also provides an optical lens 200, which can better improve ghost images and/or flare on an imaging surface, can be matched with industrial design of electronic equipment quickly, saves time and labor cost, can improve imaging quality by arranging the optical lens 200, improves shooting effect by arranging the imaging module, improves user experience, and is more beautiful in appearance.
Referring to fig. 5, an optical lens 200 in the embodiment of the present application includes a lens holder 10 and a lens 20, wherein a plurality of mounting positions are disposed on an inner wall of the lens holder 10, and the lens 20 is disposed in the lens holder 10 and can be mounted at the mounting positions. The mounting location may be a step structure abutting against the lens 20, a mounting groove for clamping the lens 20, or a structural member for connecting the lens 20, or may be a mounting surface for bonding the edge of the lens 20. The number of lenses 20 in the lens mount 10 may be one or more, and the selection of the number of lenses 20 may be determined based on imaging requirements.
Specifically, the lens holder 10 includes a lens barrel 11, a spacer 12, and a light shielding sheet 13, the lens barrel 11 is cylindrical, the plurality of lenses 20 are all located in the lens barrel 11, the spacer 12 is annular, the spacer 12 is supported between two adjacent lenses 20 to maintain a distance between the two adjacent lenses 20, the light shielding sheet 13 is annular, the light shielding sheet 13 is disposed between two adjacent lenses 20 and between the lens 20 and the spacer 12, and the light shielding sheet 13 is used for shielding an installation position of the lens holder 10. The materials of the lens barrel 11 and the spacer 12 include but are not limited to hard plastic and metal, and the materials of the lens 20 include but are not limited to Polycarbonate (PC), polymethyl methacrylate (Poly (methyl methacrylate) or Acrylic, PMMA), cyclic olefin copolymer (Cyclo Olefin Copolymer, COC), glass, etc., and in practical applications, the materials of the lens barrel 11 and the lens 20 can be selected according to the optical design requirements, cost, environmental factors, etc.
Wherein at least one lens 20 is doped with a light absorber, the light absorber is related to one or more of a lens 20 structure, a lens 20 optical design, and a lens mount 10 structure, the parameters related to the lens 20 structure include one or more of a lens 20 number, a lens 20 shape, the parameters related to the lens 20 optical design include one or more of an effective focal length (Effective Focal Length, EFL), a total lens length (Total Track Length, TTL), a Field of View (FOV), an F-number, or an F-stop, and the parameters related to the lens mount 10 structure include one or more of a head size of the lens mount 10, a mounting position of the lens mount 10.
It will be appreciated that any of the above parameters may cause a change in the optical path of the incident light, which in turn causes a change in the projection type of the excessive light formed by multiple reflections in the lens 20 on the imaging surface, for example, the smaller the f-number of the lens 20, the larger the luminous flux, and the larger the color saturation of the projection of the excessive light on the imaging surface; the larger the angle of view of the lens 20, the more light paths, and the more kinds of unwanted light projections on the imaging surface; the smaller the size of the head of the lens holder 10, the more incident light is reflected by the lens holder 10, and the more kinds of stray light are on the imaging surface. The light path of the incident light is specific under the specific lens 20 structure, the optical design of the lens 20 and the lens holder 10 structure, so that the color of the excessive light formed by multiple reflections in the lens 20 is also specific, and the above-mentioned "the light absorber is related to one or more of the lens 20 structure, the optical design of the lens 20 and the lens holder 10 structure" means that the light absorber doped in the lens 20 is also specific under the above-mentioned specific parameters, that is, the color of the light absorbed by the optical lens 200 is related to one or more of the lens 20 structure, the optical design of the lens 20 and the lens holder 10 structure in the optical lens 200, so that the optical lens 200 can dope the related light absorber as required, thereby weakening or eliminating the projection of the light of the specific color on the imaging surface, and meeting the requirement of the imaging effect. The specific color may be the color of the excessive light, or may be a color related to the color of the excessive light. This approach does not increase space occupation, does not cause frame blurring, is not limited by the structure of the lens 20 itself, and improves imaging quality.
The light absorber includes, but is not limited to, dye, pigment, dye molecule, etc., as long as it can absorb light of a specific wavelength and is compatible with the lens 20 in flow state. The light absorber exhibits a color that is complementary to the color it absorbs, so that the color of the lens 20 doped with the light absorber also exhibits a color that is complementary to the color absorbed by the light absorber. The complementary color refers to that, in optics, if two different colors of light are added in equal amounts to form white light, that is, two colors of light (monochromatic light or polychromatic light) are mixed in a proper ratio to generate a white sensation, the two colors of light are called complementary colors, and the two colors are complementary colors, for example, red and green are complementary colors, and purple and yellow are complementary colors.
In this embodiment, the lens 20 is formed by injection molding an organic solvent, and the light absorber may be a dye that can be dissolved in the organic solvent, such as an azo compound based on red, yellow, orange, brown, and an anthraquinone compound based on blue, green, which is rich in color and strong in solubility in the organic solvent. When the light absorber is doped, the flowing light absorber and the flowing organic solvent can be mixed and stirred uniformly to form a mixed solvent, and the mixed solvent is solidified and molded to obtain the colored lens 20 doped with the light absorber.
In some embodiments, referring to fig. 6, the light absorber may be used to absorb the light with the color that would form the unnecessary projection on the imaging surface, i.e. the light absorber is used to absorb the excessive light 90c, so as to reduce the color of the unnecessary projection formed by the excessive light 90c on the imaging surface, and improve the imaging effect.
Specifically, the optical lens 200 of the comparison group is used for shooting an object, the optical lens 200 of the comparison group accords with the structure of the lens 20, the optical design of the lens 20 and the structure requirement of the lens holder 10, the color of each lens 20 is transparent, the color projected by the redundant light 90c in the imaging of the observation shooting after the shooting is completed, then the light absorber capable of absorbing the light of the projected color is selected to be doped in at least one lens 20, the lens 20 doped with the light absorber forms a colored lens 201 with the light absorber color, at this time, the color of the colored lens 201 is the complementary color of the projected color of the redundant light 90c on the imaging surface, and the colored lens 201 is replaced by the corresponding transparent lens in the optical lens 200 of the comparison group, so that the optical lens 200 in the embodiment of the application can be obtained, and the optical lens 200 can absorb the redundant light 90c through the doped light absorber, thereby weakening or eliminating the projection of the redundant light 90c in the imaging.
In order to improve the photographing effect, referring to fig. 6, the optical lens 200 includes a plurality of lenses 20, the plurality of lenses 20 are arranged along an axis of the lens holder 10 in the lens holder 10, and at least one of the plurality of lenses 20 is doped with a light absorber. It is understood that the plurality of lenses 20 sequentially includes a first lens and a second lens … …, N being a natural number greater than or equal to 2, along the incident direction of the light. The first lens is a visual lens of the optical lens 200, the second lens … … and the nth lens are both positioned at the inner side of the first lens, at least one of the first lens and the nth lens of the second lens … … is a colored lens, and a light absorber is doped in the colored lens to absorb light rays which can form unnecessary projection on an imaging surface. In the embodiment shown in fig. 6, the plurality of lenses 20 includes a first lens 20a, a second lens 20b, a third lens 20c, and a fourth lens 20d, wherein the second lens 20b is a colored lens 201 doped with a light absorber.
Any parameter variation in the structure of the lens 20, the optical design of the lens 20, and the structure of the lens holder 10 may also cause the lens 20 that generates the excessive light 90c to be transformed into another lens 20, for example, as the thickness of the first lens 20a is reduced, the size is increased, and the angle of view is increased, the optical path is changed accordingly, and the lens 20 that generates the ghost image is transformed from the second lens 20b into the first lens 20a. As can be seen from the light path in fig. 6, under the specific parameter condition, the light path of the incident light 90a is specific, and therefore, the incident light 90a will generate multiple reflections in the specific lens 20, i.e. the lens 20 generating the excessive light 90c is the specific lens 20. To refer to imaging quality, the light absorber may be doped into the lens 20 in which multiple reflections of light occur to eventually form an unnecessary projection on the imaging surface, so as to absorb the reflected light 90b during the generation stage of the excessive light 90c, thereby greatly reducing the brightness of the excessive light 90c and improving the imaging quality.
It should be noted that, if the lens 20 in which the light exists for multiple reflections is found to have a plurality of lenses through the simulation image of the optical path, the lenses 20 in which the light exists for multiple reflections may be doped with the relevant light absorber to simultaneously attenuate the excessive light 90c formed by the different lenses 20.
Since the color of the excessive light 90c may be a monochromatic light or a composite color formed by compositing a plurality of monochromatic lights, the color of the excessive light 90c may be treated as a monochromatic light, that is, a first light absorber capable of absorbing light having a projection color on an imaging surface is doped in the relevant lens 20, then the optical lens 200 with the lens 20 doped with the first light absorber is used for shooting again and observing imaging, and if the projection of the excessive light 90c, such as ghost images or flare, is not present on the imaging surface of the optical lens 200, the experiment is ended, and the light absorber in the relevant lens 20 is used for a single color; if the projection of the excessive light 90c of other colors appears on the imaging surface of the optical lens 200, the excessive light 90c before the description is formed by combining a plurality of monochromatic lights, then the second light absorbent capable of absorbing the projected colors can be selected again, and the second light absorbent and the first light absorbent are doped into the related lens 20 together, then the optical lens 200 doped with the first light absorbent and the second light absorbent is used for shooting again, imaging is observed, and the above steps are circulated until the projection of the excessive light 90c of other colors does not appear on the imaging surface, the excessive light 90c is completely absorbed, and the experiment is finished, wherein the light absorbent in the related lens 20 is formed by configuring the light absorbent of a plurality of different monochromatic light absorbents according to a certain proportion.
The unnecessary projection of the excessive light 90c on the imaging surface is most often a ghost image and a flare, and the types of the ghost image and the flare formed on the imaging surface by the optical lens 200 under a specific parameter are specific. The optical lens 200 may reduce the color of the ghost image and/or the flare on the imaging surface by using the lens 20 doped with the light absorber.
If there is no ghost on the imaging surface, the relevant light absorber can be used to absorb the light that will form the ghost on the imaging surface, the light absorber presents the complementary color of the ghost color, and the lens 20 doped with the light absorber presents the color of the light absorber. Thus, the optical lens 200 can absorb the excessive light which forms the ghost image through the light absorber to weaken the color of the ghost image on the imaging surface.
If there is no ghost image on the imaging surface, the relevant light absorber can be used to absorb the light that will form the flare on the imaging surface, the light absorber will be the complementary color of the flare color, and the lens 20 doped with the light absorber will be the color of the light absorber. Thus, the optical lens 200 can absorb the excessive light rays forming the stray light through the light absorber to weaken the color of the stray light on the imaging surface.
If there is both ghost and flare in the image, and the ghost and flare are different in color, the relevant light absorber is used to absorb the light that forms flare on the image plane and the light that forms ghost on the image plane, the light absorber exhibits a mixed color of the complementary color of the ghost and the complementary color of the flare, and the lens 20 doped with the light absorber exhibits the mixed color. Thus, the optical lens 200 can absorb the excessive light rays which form ghost images and parasitic light through the light absorber to weaken the colors of the ghost images and the parasitic light on the imaging surface.
Referring to fig. 7, the lens 20 includes an optical portion 21 and a mechanism portion 22 disposed around the edge of the optical portion 21, the optical portion 21 is used for transmitting light to form an optical area of the lens 20, the mechanism portion 22 is connected to the lens holder 10, specifically connected to a mounting position of the lens holder 10, the lens holder 10 shields the mechanism portion 22 in an incident direction of the light, and the mechanism portion 22 forms the mechanism area of the lens 20. The spacer 12 and the light shielding sheet 13 each avoid the optical portion 21, and the mechanism portion 22 is a portion that is shielded by the lens barrel 11, the spacer 12 and the light shielding sheet 13, and in the embodiment shown in fig. 7, a line connecting inner wall surfaces of two adjacent light shielding sheets 13 forms a boundary between the optical portion 21 and the mechanism portion 22.
The mechanism 22 may be annular, and the central axis of the optical unit 21 coincides with the central axis of the mechanism 22. Only the light reflected multiple times in the optical portion 21 forms a ghost image on the imaging surface (fig. 8), and the light reflected multiple times by the mechanism portion 22 forms a flare on the imaging surface (fig. 6). The unnecessary light forming the projection on the imaging surface may be formed by multiple reflections in the optical portion 21 or multiple reflections in the mechanism portion 22, and when the lens 20 is doped with the light absorber, the optical portion 21 and the mechanism portion 22 may be respectively set to the corresponding colors according to the type of the unnecessary projection, so that the unnecessary light is absorbed in a targeted manner, not only the absorption efficiency is improved, but also the influence on the light of the normal projection is reduced. For example, one lens 20 may form only one of a ghost image and flare on the imaging surface, or may form both a ghost image and flare on the imaging surface. The following description is given in three cases.
Alternatively, referring to fig. 8, when only the ghost image exists on the imaging surface, the light absorber may include only the first dye doped in the optical portion 21, the first dye is used for absorbing the light beam that is reflected in the optical portion 21 for multiple times to form the ghost image on the imaging surface, the color of the first dye and the color of the ghost image on the imaging surface are complementary, the color displayed by the optical portion 21 is the color of the first dye, and the mechanism portion 22 is transparent, so that the lens 20 can reduce the ghost image color on the imaging surface by doping the first dye in the optical portion 21. Generally, the darker the ghost image on the imaging surface, the more the light absorber is added to the optical portion 21 to absorb the excessive reflected light in the optical portion 21, but the more the light absorber is used to the optical portion 21, the more the light absorber is used to affect not only the passing of the incident light but also the fluidity and final solidification of the lens 20, so that the mass percentage of the light absorber in the optical portion 21 of the lens 20 needs to be controlled to be 0.02% -0.05%, and the amount of the first dye in the lens 20 is not affected to the passing of the incident light through the lens 20 and solidification. For ease of processing, when only ghost images are present on the imaging surface, the first dye may be doped in the mechanism portion 22 so as to perform injection molding of the optical portion 21 and the mechanism portion 22 simultaneously.
Alternatively, referring to fig. 9, when there is only stray light on the imaging surface, the light absorber may include only a second dye doped in the mechanism 22, the optical portion 21 is transparent, the second dye is used for absorbing light reflected in the mechanism 22 for forming the stray light on the imaging surface, the color of the second dye and the color of the stray light on the imaging surface are complementary, the color displayed by the mechanism 22 is the color of the second dye, and thus the lens 20 can reduce the color of the stray light on the imaging surface by doping the mechanism 22 with the second dye. In addition, the lens 20 may have only the mechanism portion 22 colored, and the optical portion 21 is still transparent, so that the incident light passing through the optical portion 21 is not affected, the chromaticity of the light passing through the optical portion 21 is prevented from being reduced, and the lens 20 may also have the optical portion 21 doped with the second dye, so that the optical portion 21 and the mechanism portion 22 are injection molded simultaneously. Since the mechanism 22 is blocked by the lens holder 10, the amount of the second dye used in the mechanism 22 may be increased in order to enhance the effect of absorbing stray light, but is not limited to an excessive amount, so as not to affect the fluidity and solidification of the lens 20.
Alternatively, referring to fig. 10, when both ghost images and flare are present on the imaging surface, the light absorber includes a first dye doped in the optical portion 21 and a second dye doped in the mechanism portion 22. The first dye is used for absorbing the light which is reflected for many times in the optical portion 21 to finally form the ghost image on the imaging surface, the color of the first dye and the color of the ghost image on the imaging surface are complementary colors, the second dye is used for absorbing the light which is reflected for many times in the mechanism portion 22 to finally form the flare on the imaging surface, the color of the second dye and the color of the flare on the imaging surface are complementary colors, at the moment, the color displayed by the optical portion 21 is the color of the first dye, and the color displayed by the mechanism portion 22 is the color of the second dye. In this way, the color of the optical portion 21 and the color of the mechanism portion 22 can be set according to the specific conditions of the ghost image and the flare on the imaging surface, thereby reducing the color of the ghost image and the flare on the imaging surface and improving the imaging effect. It should be noted that the colors of the first dye and the second dye may be the same or different, and in practical application, the colors of the flare and the ghost image on the imaging surface may be adjusted accordingly. It can be understood that when the ghost image and the flare on the imaging surface have the same color, the first dye and the second dye have the same color, and the second dye has a concentration greater than that of the first dye, and the optical portion 21 and the mechanism portion 22 have the same color, and the color of the mechanism portion 22 is darker than that of the optical portion 21; when the ghost image on the imaging surface is different from the flare in color, the first dye is also different from the second dye in color, and at this time, the optical portion 21 is also different from the mechanism portion 22 in color. Wherein, the concentration of the first dye refers to the content of the first dye in the optical portion 21, and the concentration of the second dye refers to the content of the second dye in the mechanism portion 22.
Since the colors of the optical portion 21 and the mechanism portion 22 are considered separately, the optical portion 21 and the mechanism portion 22 cannot be integrally molded. Taking the example of injection molding the lens 20 from a resin material, the molding process of the lens 20 is roughly classified into the following three types.
The first is to mold the optical portion 21 and the mechanism portion 22 separately and then bond the optical portion 21 and the mechanism portion 22. During processing, the optical part 21 and the mechanism part 22 with various colors can be provided, and then the optical part 21 with proper colors is selected to be bonded with the mechanism part 22 according to imaging requirements, so that rapid processing of the lens 20 is facilitated. Specifically, a first mold for molding the optical portion 21 and a second mold for molding the mechanism portion 22 are prepared, and then injection molding of the optical portion 21 is performed solely in the first mold, injection molding of the mechanism portion 22 is performed solely in the second mold, and after the optical portion 21 and the mechanism portion 22 are solidified and molded, the annular mechanism portion 22 is fitted over the disk-shaped optical portion 21 and bonded by an optical adhesive, thereby forming the completed lens 20.
The optical portion 21 may be made of a transparent resin, specifically, the transparent resin in a fluid state is directly poured into a first mold, and the transparent resin in the first mold is solidified to form the optical portion 21. The optical portion 21 may be made of a transparent resin doped with a first dye, specifically, the solidified transparent resin and the solid first dye may be heated in a first mold, and after the transparent resin and the first dye are melted, the mixture is stirred uniformly, or the flowing transparent resin and the flowing first dye are directly mixed in the first mold, and stirred uniformly, and the mixture is solidified to form the colored optical portion 21. The mechanism 22 may be made of a transparent resin, specifically, the mechanism 22 may be formed by pouring a flowing transparent resin directly into a second mold, and solidifying the transparent resin in the second mold. The mechanism 22 may be made of a transparent resin doped with a second dye, specifically, the solidified transparent resin and the solid second dye may be heated in a second mold, and after the transparent resin and the second dye are melted, the mixture is stirred uniformly, or the flowing transparent resin and the flowing second dye are directly mixed in the second mold, and stirred uniformly, and the colored mechanism 22 is formed after the mixture is solidified.
The second is to first injection mold the optical portion 21 and then form the mechanism portion 22 on the outer peripheral side of the optical portion 21 by injection molding. Specifically, a first mold for molding the optical portion 21 and a third mold for molding the lens 20 are prepared, the optical portion 21 is injection molded in the first mold, the optical portion 21 is taken out and put into the third mold after the optical portion 21 is solidified and molded, then a fluid resin material is added to the outer peripheral side of the optical portion 21 in the third mold, the injection molding of the mechanism portion 22 is performed, and the mechanism portion 22 is formed on the outer peripheral side of the optical portion 21 after the solidification and molding, thereby forming the completed lens 20.
The optical portion 21 may be made of a transparent resin or a colored resin, and the method for manufacturing the optical portion 21 is the same as the method for manufacturing the optical portion 21 in the first embodiment, and is not repeated here. If the mechanism 22 is made of a transparent resin, the transparent resin may be directly poured into the outer periphery of the optical portion 21 in the third mold, and after the transparent resin in the third mold is solidified, the mechanism 22 may be molded on the outer periphery of the optical portion 21 to form the completed lens 20. If the mechanism 22 is made of a colored resin, a fluid colored resin in which the transparent resin and the second dye are uniformly mixed may be directly poured into the outer peripheral side of the optical portion 21 of the third mold, or a fluid colored resin and a fluid second dye may be respectively poured into the outer peripheral side of the optical portion 21 of the third mold, and then the fluid colored resin is formed by uniformly stirring in the third mold, and after the colored resin is solidified, the mechanism 22 is molded on the outer peripheral side of the optical portion 21 to form the complete lens 20.
The third is to first injection mold the mechanism 22, and then form the optical portion 21 inside the mechanism 22 by injection molding. Specifically, a second mold for molding the mechanism 22 and a third mold for molding the lens 20 are prepared, the mechanism 22 is injection molded in the second mold, the mechanism 22 is taken out and put into the third mold after the mechanism 22 is solidified and molded, a dynamic resin material is added to the inner side of the mechanism 22 in the third mold, the optical portion 21 is injection molded, and the optical portion 21 is formed inside the mechanism 22 after being solidified and molded, thereby forming the completed lens 20.
The method for manufacturing the mechanism 22 may be the same as that of the mechanism 22 in the first embodiment, and is not described here. If the optical portion 21 is made of transparent resin, the transparent resin may be directly poured into the inner side of the mechanism portion 22 in the third mold, and after the transparent resin in the third mold is solidified, the optical portion 21 may be molded into the inner side of the mechanism portion 22, thereby forming the complete lens 20. If the optical portion 21 is made of a colored resin, a flowing colored resin in which the transparent resin and the first dye are uniformly mixed may be directly poured into the inner side of the mechanism portion 22 of the third mold, or a flowing transparent resin and a flowing first dye may be respectively poured into the inner side of the mechanism portion 22 of the third mold, and uniformly stirred in the third mold to form a colored resin, and after the colored resin is solidified, the optical portion 21 may be formed into a complete lens 20 in the inner side of the mechanism portion 22.
In other embodiments, when only ghost images or only flare are present in the image, the optical portion 21 and the mechanical portion 22 in the lens 20 may be the same color, and at this time, only the third mold may be prepared, and the transparent resin and the first dye and/or the second dye may be mixed and injection molded in the third mold to integrally form the lens 20, so that the optical portion 21 and the mechanical portion 22 do not need to be dyed separately, thereby facilitating the processing and assembly.
Referring to fig. 11, when the lens 20 having multiple reflections in the optical path is not the first lens 20a but one of the N-th lenses of the second lens 20b … … in the simulation experiment result of the optical path, the lens 20 may be doped with a light absorber, i.e. at least one of the N-th lenses of the second lens 20b … … is a colored lens 201, and in the embodiment shown in fig. 9, the second lens 20b is a colored lens 201 doped with a light absorber.
In order to make the color of the optical lens 200 match the external color of the electronic device, the first lens 20a may be doped with a colorant, where the color of the colorant is related to the industrial design of the electronic device to which the optical lens 200 is applied, "related" herein generally means that the color of the first lens 20a is in the same color system as the external color of the electronic device, so as to enhance the overall aesthetic feeling of the electronic device. For example, if the phone is made of a metal material and a dark theme, the first lens 20a may optionally incorporate a black or dark gray colorant to maintain visual consistency, and if the phone is made of a resin material and a blue, green or cyan theme, the first lens 20a may optionally incorporate a blue, green or cyan colorant to preserve visual consistency. By doping the coloring agent in the first lens 20a to form the colored lens 201, the appearance color of the optical lens 200 is stable, and multiple verification experiments are not required, so that the requirements of industrial design of electronic equipment on the appearance of the optical lens 200 can be quickly matched, and time and labor are saved. In this case, the coating film on the first lens 20a only needs to consider the basic function during the setting, and the color verification is not needed.
In other embodiments, the color of the colorant related to the industrial design of the electronic device using the optical lens 200 may also refer to that the color of the first lens 20 is set to be complementary to the appearance color of the electronic device, or to be a specific color for improving brand recognition, which is not limited herein, and the color of the first lens 20 may be set according to design requirements in practical applications.
Taking an electronic device as an example of a smart phone, a plurality of camera modules are arranged on the smart phone, an optical lens 200 of at least one camera module is arranged on the screen side of the smart phone, an optical lens 200 of at least one camera module is arranged on the back side of the smart phone, and a plurality of lenses 20 are arranged in the optical lens 200 of at least one camera module.
As an embodiment, referring to fig. 12, in order to match the requirement of the user for the high screen ratio of the smart phone, smaller and smaller screen openings are the pursuing trend of each large phone manufacturer, however, smaller screen openings mean smaller head sizes of the optical lens 200, and the parameters of the optical lens 200 with small head sizes are as follows: the effective focal length of the lens 20 is 2.47-3mm, the field angle of the lens 20 is more than 75 degrees and less than or equal to 90 degrees, the f-number of the lens 20 is less than 2.2, the head diameter of the lens mount 10 is less than 2.2mm, the lens mount 10 is arranged in front, namely the optical lens 200 is arranged on the screen side of the smart phone, and the f-number is less than 2.2.
However, such small-head-size optical lenses 200 often have a common problem that the incident light beam reflected by the mechanism area in the lens 20 forms a green-arc phenomenon on the imaging surface, which is a kind of parasitic light. To improve the green arc phenomenon, the second lens 20b may be doped with a light absorber, wherein the light absorber may include only the second dye doped in the mechanism portion 22, the second dye is red, and the mechanism portion 22 is red and the optical portion 21 is transparent. The red color is complementary to the green color, that is, the second dye is red due to absorption of the green light, so that the red mechanism 22 absorbs the reflected green light in the second lens 20b, thereby reducing the green arc color on the imaging surface.
There is one main shot among the plurality of optical lenses 200 on the smart phone, which is the optical lens 200 that plays a main shooting role in the multi-lens camera system. This optical lens 200 is typically the most important optical lens 200 on electronic devices for daily photographing and video recording. The optical lens 200 as a main camera generally has a higher number of pixels, a larger aperture, better optical quality, and a more comprehensive focus Duan Fugai to ensure good image quality under various light conditions and shooting scenes.
As an embodiment, referring to fig. 13, for a main camera on a conventional smart phone, parameters of the optical lens 200 are generally as follows: the number of the lenses 20 is more than or equal to 6, the outer surface of the lenses 20 is a convex curved surface, the central angle corresponding to the curved surface is more than 70 degrees, the total length of the lenses 20 is 5.5-9mm, the lens holder 10 is installed in a rear mode, namely the optical lens 200 is installed on the back side of the smart phone, and the angle of view of the first lens 20a is more than 78 degrees and less than 85 degrees. Since the first lens 20a in the main imaging is internally reflected, that is, a multiple reflection phenomenon occurs in the first lens 20a, a bluish-violet ghost image is formed on the imaging surface.
To improve the blue-violet ghost image, the first lens 20a may be doped with a light absorber, which includes a first dye doped in the optical portion 21 and a second dye doped in the mechanism portion 22, wherein the first dye and the second dye are both yellow-green, and the optical portion 21 and the mechanism portion 22 are both yellow-green. Since the yellow-green color is complementary to the blue-violet color, the yellow-green optical portion 21 absorbs the reflected light of the blue-violet color in the first lens 20a, thereby reducing the ghost color on the imaging surface. The same color of the mechanism portion 22 and the color of the optical portion 21 not only facilitate the unified processing of the first lens 20, but also facilitate the enhancement of the aesthetic quality of the electronic device because the first lens 20a is the visual lens 20 on the optical lens 200, and the optical portion 21 and the mechanism portion 22 are unified in color, without separately molding the mechanism portion 22 and the optical portion 21. In other embodiments, only the mechanism portion 22 may be doped with the second dye, and the optical portion 21 may be transparent.
Finally, it should be noted that: the foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (16)
1. The optical lens is characterized by comprising a lens seat and at least one lens, wherein the lens is arranged in the lens seat, at least one lens is doped with a light absorber, the light absorber is related to one or more of the structure of the lens, the optical design of the lens and the structure of the lens seat, the parameters of the structure of the lens comprise one or more of the number of lenses and the shape of the lens, the parameters of the optical design of the lens comprise one or more of an effective focal length, a total lens length, an angle of view and an aperture number, and the parameters of the structure of the lens seat comprise one or more of the head size of the lens seat and the mounting position of the lens seat.
2. The optical lens of claim 1, wherein the light absorber is configured to absorb light of a color that would form an unnecessary projection on the imaging surface.
3. The optical lens of claim 2, wherein the optical lens comprises a plurality of the lenses, the plurality of lenses being arranged within the lens mount along an axis of the lens mount, at least one of the plurality of lenses being doped with the light absorber.
4. The optical lens of claim 3 wherein the light absorber is doped in the optic where there are multiple reflections of light that ultimately form the unwanted projection on the imaging surface.
5. The optical lens of claim 3, wherein the plurality of lenses sequentially includes a first lens, a second lens … … N-th lens along an incident direction of the light, the first lens being doped with a colorant related to an apparent color of an electronic device to which the optical lens is applied, at least one of the second lens … … N-th lens being doped with the light absorber.
6. An optical lens as claimed in any one of claims 1 to 5, wherein the light absorber is for absorbing light rays which form ghost images and/or flare on the imaging surface.
7. An optical lens as claimed in claim 6, wherein the lens includes an optical portion and a mechanism portion disposed around an edge of the optical portion, the optical portion being configured to transmit light, the mechanism portion being connected to the lens holder, the lens holder shielding the mechanism portion in an incident direction of the light, the light absorber including a first dye doped to the optical portion for absorbing light reflected multiple times in the optical portion to finally form the ghost image on the imaging surface and/or a second dye doped to the mechanism portion for absorbing light reflected multiple times in the mechanism portion to finally form the ghost image on the imaging surface.
8. The optical lens of claim 7, wherein when the light absorber includes the first dye or includes the first dye and the second dye, a mass ratio of the first dye in the optical portion is 0.02% -0.05%.
9. The optical lens according to claim 8, wherein when the light absorber includes the first dye and/or the second dye, a concentration of the second dye in the mechanism portion is greater than a concentration of the first dye in the optical portion.
10. The optical lens of claim 7, wherein the optical portion is bonded to the mechanism portion.
11. The optical lens according to claim 7, wherein the optical portion is formed inside the mechanism portion by injection molding.
12. The optical lens according to claim 7, wherein the mechanism portion is formed on an outer peripheral side of the optical portion by injection molding.
13. The optical lens of claim 7, wherein the number of lenses is greater than or equal to 4, the effective focal length of the lenses is 2.47-3mm, the field angle of the lenses is greater than 75 ° and less than or equal to 90 °, the f-number is less than 2.2, the head diameter of the lens mount is less than 2.2mm, the lens mount is mounted in front, the second lens is doped with the light absorber, the light absorber comprises the second dye, and the second dye is red.
14. The optical lens of claim 7, wherein the number of the lenses is greater than or equal to 6, the outer surface of the lenses is a convex curved surface, the central angle corresponding to the curved surface is greater than 70 degrees, the total lens length of the lenses is 5.5-9mm, the angle of view of the lenses is greater than 78 degrees and less than 85 degrees, the lens mount is installed at the rear position, the first lenses are doped with the light absorber, the light absorber comprises the first dye and the second dye, and the first dye and the second dye are all yellow-green.
15. An imaging module comprising an optical lens according to any one of claims 1 to 14.
16. An electronic device comprising the camera module of claim 15.
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| CN208569148U (en) * | 2018-05-30 | 2019-03-01 | 宁波舜宇光电信息有限公司 | Optical lens and camera module |
| CN113196112A (en) * | 2018-12-07 | 2021-07-30 | 苹果公司 | Light absorbing flange lens |
| JP2021005000A (en) * | 2019-06-27 | 2021-01-14 | キヤノン株式会社 | Optical system using optical elements with absorption properties, and optical device |
| WO2022259849A1 (en) * | 2021-06-08 | 2022-12-15 | ソニーセミコンダクタソリューションズ株式会社 | Imaging element package and electronic device |
| WO2023009657A1 (en) * | 2021-07-28 | 2023-02-02 | Eyesafe Inc. | Blue light mitigation and color correction in augmented reality (ar), virtual reality (vr), or extended reality (xr) systems |
| CN114784029A (en) * | 2022-03-22 | 2022-07-22 | 维沃移动通信有限公司 | Pixel structure, image sensor chip, camera module and electronic equipment |
| CN114785917A (en) * | 2022-03-31 | 2022-07-22 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN115124825A (en) * | 2022-08-01 | 2022-09-30 | 广州市博泰光学科技有限公司 | PC high-definition optical lens and preparation method thereof |
| CN218350595U (en) * | 2022-11-04 | 2023-01-20 | 浙江舜宇光学有限公司 | Camera shooting module |
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