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Optical lens group, imaging device and electronic device for photography

An optical lens and lens technology, which is applied in the field of optical lens groups and imaging devices for wide-angle photography, can solve the problems of small viewing angle aperture, insufficient resolution, and inability to meet the use of higher-end products, so as to achieve wide viewing angle and improve imaging quality , the effect of shortening the back focus

Active Publication Date: 2019-05-17
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commonly used wide-angle lenses often have problems such as too small angle of view or aperture and insufficient resolution, which cannot meet the needs of higher-end products.

Method used

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  • Optical lens group, imaging device and electronic device for photography
  • Optical lens group, imaging device and electronic device for photography
  • Optical lens group, imaging device and electronic device for photography

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0118] Please refer to figure 1 and figure 2 ,in figure 1 A schematic diagram showing an imaging device according to the first embodiment of the present invention, figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment. Depend on figure 1 It can be seen that the image capturing device of the first embodiment includes a photographic optical lens set (not another number) and an electronic photosensitive element 190 . The optical lens group for photography includes a first lens 110, a second lens 120, a third lens 130, an aperture 100, a fourth lens 140, a fifth lens 150, an infrared filter element 160, Flat glass 170 and imaging surface 180, and electronic photosensitive element 190 is arranged on the imaging surface 180 of the optical lens group for photography, wherein the lens in the optical lens group for photography is five (110-150), and any two adjacent lenses There is an air space between them on the opt...

no. 2 example

[0153] Please refer to image 3 and Figure 4 ,in image 3 A schematic diagram showing an imaging device according to a second embodiment of the present invention, Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Depend on image 3 It can be seen that the image capturing device of the second embodiment includes a photography optical lens set (not another number) and an electronic photosensitive element 290 . The optical lens group for photography includes a first lens 210, a second lens 220, a third lens 230, an aperture 200, a fourth lens 240, a fifth lens 250, an infrared filter element 260, Flat glass 270 and imaging surface 280, and electronic photosensitive element 290 is arranged on imaging surface 280 of optical lens group for photography, wherein the lens in the optical lens group for photography is five pieces (210-250), and any two adjacent lenses There is an air space between them on the opti...

no. 3 example

[0171] Please refer to Figure 5 and Image 6 ,in Figure 5 A schematic diagram showing an imaging device according to a third embodiment of the present invention, Image 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment. Depend on Figure 5 It can be seen that the image capturing device of the third embodiment includes a photographic optical lens set (not another number) and an electronic photosensitive element 390 . The optical lens group for photography includes a first lens 310, a second lens 320, a third lens 330, a diaphragm 300, a fourth lens 340, a fifth lens 350, an infrared filter element 360, Flat glass 370 and imaging surface 380, and electronic photosensitive element 390 is arranged on imaging surface 380 of optical lens group for photography, wherein the lens in optical lens group for photography is five pieces (310-350), and any two adjacent lenses There is an air space between them on the optical a...

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PUM

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Abstract

The invention discloses a photographic optical lens set, an image capturing apparatus and an electronic apparatus. The photographic optical lens set sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object side to the image side, wherein the first lens has negative refraction power, the image side surface of the first lens is a recessed surface, the second lens has negative refraction power, the image side surface of the second lens is a recessed surface, the third lens has positive refraction power, the fourth lens has positive refraction power, the image side surface of the fourth lens is a convex surface, the object side surface and the image side surface of the fourth lens are aspheric, and the fifth lens has negative refraction power, the object side surface of the fifth lens is a recessed surface, the image side surface of the fifth lens is a convex surface, the object side surface and the image side surface of the fifth lens are aspheric. When specific conditions are met, the photographic optical lens set has sufficient refraction power to shorten the back focal distance. The invention further discloses an image capturing apparatus employing the photographic optical lens set and an electronic apparatus employing the image capturing apparatus.

Description

technical field [0001] The present invention relates to a photographic optical lens set and an image-taking device, and in particular to an optical lens set and an image-capturing device for wide-angle photography applied to an electronic device. Background technique [0002] In recent years, with the rise of electronic products with photographic functions, the demand for optical systems has increased day by day. The photosensitive element of the general optical system is nothing more than two types of photosensitive coupling device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), and with the improvement of semiconductor process technology, The pixel size of the photosensitive element is reduced, and the optical system is gradually developing into the high-pixel field, so the requirements for imaging quality are also increasing. [0003] At present, electronic products on the marke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/06G02B13/18G02B13/00G02B9/60
CPCG02B9/60G02B13/0045G02B13/06G02B13/18
Inventor 陈俊谚陈纬彧
Owner LARGAN PRECISION
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