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Miniature Optical Image Capture Module

An optical image and capture module technology, which is applied in the field of optical image capture modules, can solve the problems that an imaging device cannot have, it is difficult to meet the requirements of light, thin and short electronic products, and the length of an optical imaging device is long.

Active Publication Date: 2017-08-04
ABILITY OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the traditional spherical ground glass lens has more material options, and the lens made of glass is more beneficial for correcting chromatic aberration, it has been widely used in the industry at present, but the spherical ground glass lens is used in applications where the numerical aperture (F Number) is small and the viewing angle is small. When the (Wide-angle) is large, it is difficult to correct aberrations such as spherical aberration
In order to improve the above-mentioned shortcomings of the traditional spherical ground glass lens, the current imaging device has used an aspheric plastic lens or an aspheric molded glass sheet to obtain better imaging quality. However, the above-mentioned optical image capture The structure of the lens generally requires the use of more lens combinations to obtain better optical characteristics, resulting in the length of the entire optical imaging device being too large, making the imaging device unable to have a smaller volume and lower cost, and it is difficult to meet the requirements of thin and short electronic products. Require

Method used

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  • Miniature Optical Image Capture Module
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  • Miniature Optical Image Capture Module

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0100] see Figure 1A , Figure 1A It is a schematic diagram showing the micro-miniature optical image capture module according to the first embodiment of the present invention. Such as Figure 1A As shown, this embodiment provides a micro-miniature optical image capture module, the micro-miniature optical image capture module includes an optical mirror group, and the optical mirror group includes sequentially along the optical axis from the object side to the image side : the first lens 10 , the second lens 20 , the third lens 30 , the fourth lens 40 , the fifth lens 50 and the sixth lens 60 .

[0101] The first lens 10 has positive refractive power near the optical axis and the object-side optical surface 101 of the first lens 10 is convex. In the first embodiment, the second lens 20 has a refractive power as an example, but it is not limited thereto, and the second lens 20 can also be implemented by making the second lens 20 have a negative refractive power. Both the third...

no. 2 example

[0120] see Figure 2A , Figure 2A A schematic diagram of a micro-miniature optical image capture module provided by the second embodiment of the present invention. Such as Figure 2A As shown, the lens structure of the second embodiment is similar to that of the first embodiment, but the difference lies in the optical data shown in Table 3, wherein the object-side optical surfaces (101, 201, 101, 201, 301, 401, 501, 601) and image-side optical surfaces (102, 202, 302, 402, 502, 602) are formed using the aspheric equation of formula (1), and their aspheric coefficients are shown in Table 4.

[0121] Wherein, with the optical axis as the center and within a range smaller than the diameter of the fixed diaphragm, the projection distance S12H formed on the optical axis by the image-side optical surface of the sixth lens and the farthest point and the closest point of the fixed diaphragm is: 0.052mm, with the optical axis as the center and within a range smaller than the diamet...

no. 3 example

[0129] see Figure 3A , Figure 3A It is a schematic diagram of a micro-miniature optical image capture module according to the third embodiment of the present invention. Such as Figure 3A As shown, the lens structure of the third embodiment is similar to that of the first embodiment, but the difference lies in the optical data shown in Table 5 and the fixed diaphragm 100 is disposed between the first lens 10 and the first lens 20 . Wherein, the object-side optical surfaces (101, 201, 301, 401, 501, 601) and image-side optical surfaces (102, 202, 302, 402, 502, 602) of the first lens 10 to the sixth lens 60 all use the formula The aspheric surface equation of (1) is formed, and its aspheric surface coefficients are shown in Table 6.

[0130] Wherein, with the optical axis as the center and within a range smaller than the diameter of the fixed diaphragm, the projection distance S12H formed on the optical axis by the image-side optical surface of the sixth lens and the farth...

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Abstract

The invention discloses a miniature optical image capture module, which includes: an optical mirror group, a fixed diaphragm and an imaging surface. The optical lens group consists of only six lenses arranged in sequence from the object side to the image side along the optical axis, which are: the first lens, which has positive refractive power near the optical axis and the object-side optical surface of the first lens is convex The second lens, the third lens and the fourth lens all have refractive power near the optical axis, the fifth lens has refractive power near the optical axis and the image side optical surface of the fifth lens is a concave surface, and the sixth lens has a refractive power near the optical axis. has negative refractive power and the image-side optical surface of the sixth lens is convex; at least one of the object-side optical surface and image-side optical surface of the sixth lens is aspheric, and the object-side optical surface and image-side optical surface of the sixth lens At least one of the surfaces is provided with at least one inflection point. The imaging surface is used for imaging the subject.

Description

technical field [0001] The present invention relates to an optical image capture module, in particular, relates to a miniature optical image capture module with high-quality imaging formed by six lenses for application in 3C products. Background technique [0002] At present, optical image capture lenses are often installed on digital carriers such as mobile phones, game consoles, PC CAM, DSC or DVC to capture images of objects, and the trend of optical image capture lenses is also moving towards miniaturization And low cost, but also need to have good aberration correction capability, high resolution and high image quality. [0003] Because the traditional spherical ground glass lens has more material options, and the lens made of glass is more beneficial for correcting chromatic aberration, it has been widely used in the industry at present, but the spherical ground glass lens is used in applications where the numerical aperture (F Number) is small and the viewing angle is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
Inventor 游鸿国
Owner ABILITY OPTO ELECTRONICS TECH