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Photography Optical System

An optical system and lens technology, applied in the field of photographic optical systems, can solve the problems of limited imaging performance, structural limitations, and inability to further correct advanced aberrations, and achieve the effect of reducing system chromatic aberration and reducing system field curvature

Active Publication Date: 2018-07-06
RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing photographic lens with seven lens groups is limited by the structure and cannot further correct advanced aberrations, such as spherical aberration, resulting in limited imaging performance

Method used

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Embodiment Construction

[0083]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0084] see figure 1 , is a schematic structural view of a preferred embodiment of the photographic optical system provided by the present invention. The photographic optical system 1 is mainly composed of seven lenses arranged coaxially, including a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, The sixth lens 160 and the seventh lens 170. In this embodiment, the above seven lenses are all plastic lenses, and their sp...

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Abstract

The invention provides a photo-optical system. The photo-optical system sequentially comprises, from an object side to an image side, a first lens (the focal length being f1), a second lens (the focal length being f2), a third lens (the focal length being f3), a fourth lens (the focal length being f4), a fifth lens (the focal length being f5), a sixth lens (the focal length being f6), and a seventh lens (the focal length being f7), which are all arranged in a coaxial manner. Moreover, the focal lengths meet the following condition: 10<f1 / f<15, 20<f2 / f<80, 0.5<f3 / f<1.5, -2.5<f4 / f<-0.5, -10<f5 / f<-2, 0.2<f6 / f<1.2, -2.5<f7 / f<-0.4, f being the focal length of the whole system. Through reasonable optimization of a facial form, distribution of focal power focal power and selection of optical materials, the photo-optical system with a relatively large aperture is designed, the imaging performance in a low illumination environment is ensured, and imaging is clear.

Description

【Technical field】 [0001] The invention relates to a photographic optical system, in particular to a photographic optical system for portable electronic equipment. 【Background technique】 [0002] In recent years, with the vigorous development of miniaturized photographic lenses, the demand for miniature imaging modules is increasing day by day, and the photosensitive elements of general photographic lenses are nothing more than two types of photosensitive coupling elements or complementary metal oxide conductor elements. With the semiconductor manufacturing With the advancement of technology, the pixel size of the photosensitive element has been further reduced. In addition, the development trend of today's electronic products is that they have good functions and are light, thin and small. Therefore, miniaturized photographic lenses with good imaging quality have become the mainstream in the market. [0003] In photographic lenses using photosensitive elements, the resolution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 石荣宝
Owner RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
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