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Optical imaging lens

An optical imaging lens and imaging technology, used in optics, optical components, instruments, etc., can solve problems involving material properties, and achieve the effect of small aperture value and small volume

Active Publication Date: 2021-05-04
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also production and assembly yields. practical problems

Method used

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Embodiment Construction

[0067] Before starting to describe the present invention in detail, at first clearly represent the symbol explanation in the accompanying drawings: 0: aperture; 1: first lens; 2: second lens; 3: third lens; 9: optical filter; 10: optical imaging Lens; 11, 21, 31, 91, 110, 410, 510: object side; 12, 22, 32, 92, 120, 320: image side; 99: imaging surface; 100, 200, 300, 400, 500: lens ; 130: assembly department; 113, 123, 213, 223, 313, 323, Z1: optical axis area; 114, 124, 214, 224, 314, 324, Z2: circumferential area; 211, 212: parallel light rays; A1: Object side; A2: image side; CP: center point; CP1: first center point; CP2: second center point; EL: extension line; I: optical axis; Lm: marginal ray; Lc: chief ray; M, R : intersection point; OB: optical boundary; TP1: first transition point; TP2: second transition point; Z3: relay zone.

[0068] The terms "optical axis area", "circumferential area", "concave" and "convex" used in this specification and claims should be interp...

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Abstract

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens and a third lens from an object side to an image side along an optical axis. Each of the first to third lenses includes an object side surface facing the object side and allowing the imaging light to pass through and an image side surface facing the image side and allowing the imaging light to pass through. The circumferential area of the image side surface of the first lens is a concave surface. The optical axis area of the object side surface of the second lens is a concave surface. The third lens has a negative refractive index. The optical imaging lens only comprises the three lenses and meets the following conditional expressions: HFOV / TTL is greater than or equal to 16.000 DEG / mm, and T1 / T3 is greater than or equal to 1.350. The optical imaging lens has the advantages of being small in aperture value, small in size, capable of improving the field angle and excellent in imaging quality.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an optical imaging lens. Background technique [0002] The specifications of consumer electronic products are changing with each passing day. Not only are the specifications of key components of electronic products such as optical lenses constantly improving to meet the needs of consumers. In addition to the imaging quality and volume of the optical lens, it is also increasingly important to improve the field of view and aperture of the imaging lens. Therefore, in the field of optical lens design, in addition to pursuing thinner lenses, it is also necessary to take into account the imaging quality and performance of the lens. [0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0035G02B13/18G02B13/14G02B9/12G02B13/0045
Inventor 董传博张嘉元廖华滨谢宏健
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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