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Large-aperture large-target-surface high-resolution half-group compensation focusing lens and working method thereof

A high-resolution, large target surface technology, applied in optics, optical components, instruments, etc., can solve the problems of low resolution of the peripheral field of view, small light transmission, and inability to meet the requirements of industrial inspection systems.

Pending Publication Date: 2020-08-11
FUJIAN FUGUANG TIANTONG OPTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the improvement of industrial inspection systems, large-scale light, large target area, and high-resolution short-focus lenses have gradually become the mainstream configuration in the field of industrial inspection and their application fields are becoming wider and wider; Due to the problem of small light and low resolution of the peripheral field of view, high-resolution imaging cannot be achieved, and the requirements of the industrial inspection system Datong light cannot be met. Therefore, a Datong light, large target surface, and high-resolution lens is designed to meet the current market demand. very meaningful

Method used

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  • Large-aperture large-target-surface high-resolution half-group compensation focusing lens and working method thereof
  • Large-aperture large-target-surface high-resolution half-group compensation focusing lens and working method thereof
  • Large-aperture large-target-surface high-resolution half-group compensation focusing lens and working method thereof

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Embodiment Construction

[0015] Such as Figure 1~3 As shown, a large aperture large target surface high-resolution semi-group compensation focusing lens, the optical system of the lens includes a fixed group A, a diaphragm 7 and a compensation group B arranged sequentially from front to back along the incident light path; Fixed group A includes positive crescent lens (1), negative crescent lens (2), biconcave lens (3), positive crescent lens (4) and negative crescent lens (5), which are arranged in sequence from front to back. group and the positive crescent lens (6); the compensation group B includes a double-convex lens (32), a double-convex lens (33) and a double-concave lens (34) tightly bonded to the second cemented group, and a double-convex lens ( 35) and the third cemented group and the double-convex lens (37) tightly bonded with the negative crescent lens (36).

[0016] In this embodiment, the air gap between the fixed group A and the diaphragm 7 is 6.738mm; the air gap between the diaphrag...

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Abstract

The invention relates to a large-aperture large-target-surface high-resolution half-group compensation focusing lens and a working method thereof. An optical system of the lens comprises a fixed groupA, a diaphragm 7 and a compensation group B which are sequentially arranged from front to back along an incident light path, wherein the fixed group A comprises a positive meniscus lens (1), a negative meniscus lens (2), a biconcave lens (3), a first gluing group formed by tightly gluing a positive meniscus lens (4) and a negative meniscus lens (5), and a positive meniscus lens (6); and the compensation group B comprises a biconvex lens (32), a second gluing group formed by tightly gluing the biconvex lens (33) and the biconcave lens (34), a third gluing group formed by tightly gluing a biconvex lens (35) and a negative meniscus lens (36), and a biconvex lens (37). The lens realizes the characteristics of large light transmission, large target surface and high resolution of the optical system, and adopts a half-group compensation mode for focusing, i.e., the focusing is completed by adjusting the compensation group B to move back and forth in the optical axis direction, thereby realizing close-range detection high-resolution imaging.

Description

technical field [0001] The invention relates to a large aperture, large target surface, high resolution semi-group compensation focusing lens and a working method thereof. Background technique [0002] With the improvement of industrial inspection systems, large-scale light, large target area, and high-resolution short-focus lenses have gradually become the mainstream configuration in the field of industrial inspection and their application fields are becoming wider and wider; Due to the problem of small light and low resolution of the peripheral field of view, high-resolution imaging cannot be achieved, and the requirements of the industrial inspection system Datong light cannot be met. Therefore, a Datong light, large target surface, and high-resolution lens is designed to meet the current market demand. Makes sense. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a large aperture, large target surface, high resolut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/167
CPCG02B15/167
Inventor 魏雄斌李俊攀叶其安
Owner FUJIAN FUGUANG TIANTONG OPTICS
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