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Single-chip internal-focusing optical lens

An optical lens and internal focusing technology, applied in optics, optical components, instruments, etc., can solve the problems of being small and light, the number of zoom groups is large, and the size is large, and the effect of solving the image peripheral deformation and compression, and the overall uniformity is achieved.

Pending Publication Date: 2019-03-01
UNION OPTECH
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  • Abstract
  • Description
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Problems solved by technology

[0002] Existing telephoto fixed-focus lenses have a narrow depth of field, and are usually unable to take into account both long-range and close-up high-definition imaging in applications. Zoom lenses that can solve this problem generally have a large number of lenses in the zoom group and require a large driving force The zoom function can only be realized by a special motor, the size is large, and the product is heavy, so it cannot be small and light

Method used

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  • Single-chip internal-focusing optical lens
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  • Single-chip internal-focusing optical lens

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no. 1 example

[0057] The data of the first embodiment are as follows:

[0058]

[0059]

[0060] The above is the detailed structural data of the embodiment, the maximum image plane size can reach 7.85mm, where the unit of the radius of curvature, thickness and focal length data is mm, surfaces 1-17 represent the surfaces from the object side to the image side in sequence, surfaces 1 to 17 Surface 4, Surface 16 to Surface 17 are aspheric coefficients, and A2-A12 are 2-12 order aspheric coefficients of each surface.

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Abstract

The invention discloses a single-chip internal-focusing optical lens comprising a first lens 1 having a negative focal power, a second lens 2 having a positive focal power, a third lens 3 having a negative focal power, a fourth lens 4 having a positive focal power, a fifth lens 5 having a positive focal power, a sixth lens having a positive focal power, a seventh lens 7 having a negative focal power, an eighth lens 8 having a negative focal power, a ninth lens 9 having a positive focal power, a filter 10, a compensating piece 11, and an image plane 12. According to the invention, with back-and-forth movement of the ninth lens, field curvature compensation and the focusing functions under different object distances are realized; and clear imaging of the lens at different object distances isensured under the condition of unchanging of the image plane.

Description

【Technical field】 [0001] The patent of the present invention relates to a single-chip internal focusing optical lens. 【Background technique】 [0002] Existing telephoto fixed-focus lenses have a narrow depth of field, and are usually unable to take into account both long-range and close-up high-definition imaging in applications. Zoom lenses that can solve this problem generally have a large number of lenses in the zoom group and require a large driving force The zoom function can only be realized by a special motor, the size is large, and the product is heavy, so it cannot be small and light. [0003] Due to the above-mentioned problems, it is necessary to propose a solution, and the present invention is made under such a background. 【Content of invention】 [0004] The technical problem to be solved by the present invention is to provide a single-chip internal focusing optical lens for the deficiencies in the prior art above. The wide-angle real-time shooting function o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06
Inventor 鲍康倩肖明志
Owner UNION OPTECH
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