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Optical imaging lens

An optical imaging lens and imaging technology, applied in optics, optical components, instruments, etc., can solve the problem of increasing the image height of the lens, and achieve the effect of large image height, image quality, and small aperture value

Pending Publication Date: 2022-04-15
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in order to improve the image quality and resolution, the image height of the lens must be increased.

Method used

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  • Optical imaging lens
  • Optical imaging lens
  • Optical imaging lens

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Embodiment Construction

[0068] Before starting to describe the present invention in detail, at first clearly represent the symbol explanation in the accompanying drawings: 0: aperture; 1: the first lens; 2: the second lens; 3: the third lens; 4: the fourth lens; 5: the fifth Lens; 6: the sixth lens; 7: the seventh lens; 8: the eighth lens; 9: the ninth lens; 10: optical imaging lens; 11, 21, 31, 41, 51, 52, 71, 81, 91, 110, 410, 510, F1: object side; 12, 22, 32, 42, 52, 62, 72, 82, 92, 120, 320, F2: image side; 99: image plane; 100, 200, 300, 400 , 500: lens; 130: assembly part; 113, 123, 213, 223, 313, 323, 413, 423, 513, 523, 613, 623, 713, 723, 813, 823, 913, 923, Z1: optical axis Area; 114, 124, 214, 224, 314, 324, 414, 424, 514, 524, 614, 624, 714, 724, 814, 824, 914, 924, Z2: circumferential area; 211, 212: parallel rays; A1: object side; A2: image side; CP: center point; CP1: first center point; CP2: second center point; EL: extension line; F: filter; I: optical axis; Lm: edge light; Lc: chi...

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Abstract

The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from an object side to an image side along an optical axis. Each of the first to ninth lenses includes an object side surface facing the object side and allowing the imaging light to pass therethrough and an image side surface facing the image side and allowing the imaging light to pass therethrough. The first lens has a positive refractive index. The circumferential area of the image side surface of the third lens is a convex surface. The circumferential area of the object side surface of the fifth lens is a convex surface. The sixth lens has a positive refractive index. The circumferential area of the image side surface of the seventh lens is a convex surface. Only nine lenses of the optical imaging lens are provided, and the following conditional expression is satisfied: ALT / Tavg 2345 > = 10.000. The optical imaging lens has the characteristics of small aperture value, large image height and excellent 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] In recent years, optical imaging lenses have continued to evolve, and the range of applications to be applied is wider. In addition to requiring the lens to be thin and short, the design of a small aperture value (Fno) is conducive to increasing the luminous flux, and a large field of view is gradually becoming a trend. In addition, in order to improve the image quality and resolution, the image height of the lens must be increased. By using a larger image sensor to receive imaging light to meet the high image quality requirements. Therefore, how to design an optical imaging lens that is thin, light, small, has a small aperture value, a large image height, and good imaging quality has become a challenge and a problem to be solved. Contents of the invention [0003] The invention provides an optical imaging lens, which can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B9/64
Inventor 张加欣林茂宗王召
Owner GENIUS ELECTRONICS OPTICAL XIAMEN