Optical camera lens with large aperture and large image surface

An optical lens and large-aperture technology, applied in the field of optical lens, can solve the problems of insufficient picture quality, blurred photos, large noise, etc., and achieve the effect of improving color reproduction, reducing sensitivity, and reducing overall weight

Inactive Publication Date: 2015-09-09
UNION OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are some defects in the mobile phone and surveillance camera lenses used. The aperture and image surface are too small. For example, the aperture is generally F2.0, and the image surface is 1 / 3 inch. Insufficient tax profit, resulting in blurry photos when zoomed in

Method used

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  • Optical camera lens with large aperture and large image surface

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The present invention is an optical lens with a large aperture and a large image surface, which is sequentially provided with a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, and a sixth lens from the object surface to the image surface. Lens 6, the seventh lens 7, the eighth lens 8, the optical filter 9 and the CMOS photosensitive chip 10, light enters from the optical filter 9, the optical filter 9 has a certain protective effect on the CMOS photosensitive chip 10, and also filters Part of the light to reduce stray light and spots, so that the image is bright and sharp with good color reproduction. A diaphragm 11 is provided between the third lens 3 and the fourth lens 4, and the diaphragm 11 is placed in the center, which can make the lens system of the present invention have a nearly symmetrical structure, th...

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Abstract

The invention discloses an optical camera lens with a large aperture and a large image surface. The optical camera lens with the large aperture and the large image surface comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens, wherein the first lens, the second lens, the third lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are plastic lens. The weight of the overall camera lens is effectively lightened; the fourth lens is a glass lens; further, a diaphragm is arranged between the third lens and the fourth lens, so that the camera lens provided by the invention has the aperture up to F1.2 and the imaging image surface up to 1 inch; meanwhile, the photographic requirements that the clear shooting can be carried out in a low-illumination environment and a photograph is high in resolution ratio when being enlarged are met; the pixel of a shot photograph can be up to 20,000,000 to 40,000,000; the optical camera lens with the large aperture and the large image surface can be used for the fields of lenses for mobile-phone photographing, monitoring photographing and the like.

Description

【Technical field】 [0001] The invention relates to an optical lens, in particular to an optical lens with a large aperture and a large image surface. 【Background technique】 [0002] At present, there are some defects in the mobile phone and surveillance camera lens used, the aperture and the image surface are too small, such as the aperture is generally F2. Not enough tax profit, resulting in blurry photos when zoomed in. [0003] The present invention studies and proposes aiming at the deficiencies of the prior art. 【Content of invention】 [0004] The technical problem to be solved by the present invention is to provide an optical lens with a large aperture and a large image surface, comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and The eighth lens, wherein the first lens, the second lens, the third lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are plastic lenses, effectively r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B1/04
CPCG02B13/18G02B1/041G02B9/64G02B13/0045
Inventor 肖明志
Owner UNION OPTECH
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