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Ultra-large wide-angle optical lens group

A wide-angle optics and lens group technology, applied in optics, optical components, instruments, etc., can solve the problems of low adaptability to complex lighting or temperature conditions, low resolution, small field of view, etc., to achieve excellent imaging quality, low cost, and tolerance. Effects of low sensitivity

Pending Publication Date: 2022-02-08
FUJIAN FUGUANG TIANTONG OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of optical lenses for in-vehicle monitoring is the most direct means. However, small field of view, low resolution, and poor adaptability to complex lighting or temperature conditions have become the main bottlenecks that limit the performance of in-vehicle surveillance lenses.

Method used

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  • Ultra-large wide-angle optical lens group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example as Figure 1~4 Shown:

[0049] An ultra-large wide-angle optical lens group, the optical system includes a first lens L1, a second lens L2, a third lens L3, a diaphragm, a fourth lens L4, and a fifth lens arranged sequentially from left to right along the light incident optical path L5 and the sixth lens L6.

[0050] Wherein: the first lens L1 is the first meniscus negative lens, the object side is convex, and the image side is concave; the second lens L2 is the second double-concave negative lens, and the object side and the image side are concave; the third lens L3 is the third biconvex positive lens, the object side and the image side are both convex; the fourth lens L4 is the fourth meniscus positive lens, the object side is concave, and the image side is convex; the fifth lens L5 is the fifth curvature The lunar negative lens has a convex surface on its object side and a concave surface on its image side; the sixth lens L6 is a sixth biconvex positive len...

Embodiment 2

[0062] Example two such as Figure 5-8 Shown:

[0063] An ultra-large wide-angle optical lens group, the optical system includes a first lens L1, a second lens L2, a third lens L3, a diaphragm, a fourth lens L4, and a fifth lens arranged sequentially from left to right along the light incident optical path L5 and the sixth lens L6.

[0064] Wherein: the first lens L1 is the first meniscus negative lens, its object side is convex, and the image side is concave; the second lens L2 is the second meniscus negative lens, its object side is convex, and the image side is concave; the third Lens L3 is a third biconvex positive lens whose object side and image side are both convex; the fourth lens L4 is a fourth meniscus positive lens whose object side is concave and image side is convex; the fifth lens L5 is a fifth The meniscus negative lens has a convex object side and a concave image side; the sixth lens L6 is a sixth biconvex positive lens, and both the object side and the image...

Embodiment 3

[0075] Embodiment three such as Figures 9 to 12 Shown:

[0076] An ultra-large wide-angle optical lens group, the optical system includes a first lens L1, a second lens L2, a third lens L3, a diaphragm, a fourth lens L4, and a fifth lens arranged sequentially from left to right along the light incident optical path L5 and the sixth lens L6.

[0077] Wherein: the first lens L1 is the first meniscus negative lens, its object side is convex, and the image side is concave; the second lens L2 is the second meniscus negative lens, its object side is convex, and the image side is concave; the third Lens L3 is a third biconvex positive lens whose object side and image side are both convex; the fourth lens L4 is a fourth meniscus positive lens whose object side is concave and image side is convex; the fifth lens L5 is a fifth The meniscus negative lens has a convex object side and a concave image side; the sixth lens L6 is a sixth biconvex positive lens, and both the object side and...

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Abstract

The invention relates to an ultra-large wide-angle optical lens group. The ultra-large wide-angle optical lens group comprises a first lens L1, a second lens L2, a third lens L3, a diaphragm, a fourth lens L4, a fifth lens L5 and a sixth lens L6 which are sequentially arranged from left to right along a light incident light path, the first lens L1 and the third lens L3 of the optical system are made of glass materials. The structure is reasonable, the size is smaller, the glass-plastic structural design is adopted, and the advantages of high resolution and high imaging stability are achieved. Meanwhile, the field of view is large, and the in-vehicle monitoring requirements of various passenger-carrying vehicles can be met. The design of small F number, wide working wave band and low temperature drift is also adopted, and the imaging quality in complex illumination, climate environment and night vision environment is further ensured.

Description

technical field [0001] The invention relates to a super wide-angle optical lens group. Background technique [0002] In recent years, the incidents of infants and young children being forgotten in the car have occurred frequently, so that the society's attention to driving safety is no longer limited to traffic accidents in the traditional sense. How to help and remind drivers to pay attention to check the situation and prevent the recurrence of similar tragedies It has become another development direction of today's major automobile manufacturers. The use of optical lenses for in-vehicle monitoring is the most direct means. However, small field of view, low resolution, and low adaptability to complex lighting or temperature conditions have become the main bottlenecks that limit the performance of in-vehicle monitoring lenses. Contents of the invention [0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/06G02B13/18G02B1/04
CPCG02B13/06G02B13/18G02B1/041G03B30/00
Inventor 许熠宸罗杰薛政云林文斌胡青平
Owner FUJIAN FUGUANG TIANTONG OPTICS
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