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High resolution lens used in automatic detecting device

An automatic detection and high-resolution technology, applied in the field of high-resolution lenses, can solve problems such as poor compatibility of cameras, and achieve the effects of upgrading product grades, stable aperture changes, and precise dimming actions

Active Publication Date: 2013-04-24
FUJIAN FORECAM OPTICS CO LTD
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Problems solved by technology

And the compatibility with the camera is poor, it can only meet the needs of general viewing in the monitoring field

Method used

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  • High resolution lens used in automatic detecting device
  • High resolution lens used in automatic detecting device
  • High resolution lens used in automatic detecting device

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Embodiment Construction

[0017] refer to figure 1 and figure 2 , a high-resolution lens used on automatic detection equipment, including a main lens barrel 1, in which a front lens group A with a positive refractive power, a variable The diaphragm C and the rear mirror group B with positive refractive power; the front mirror group A is composed of a positive crescent lens A-1, a positive crescent lens A-2 and a negative crescent lens A-3. The rear mirror group B is composed of a cemented group composed of a negative crescent lens B-1 and a positive crescent lens B-2, and a plano-concave lens B-3.

[0018] The air gap between the above-mentioned front lens group A and the variable diaphragm C is 3.11mm, and the air gap between the variable diaphragm C and the rear mirror group B is 6.37mm; The air gap between the dental lens A-1 and the doublet lens group is 0.11 mm; in the rear mirror group B, the air gap between the doublet lens group and the plano-concave lens B-3 is 4.95 mm.

[0019] The front...

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Abstract

The invention relates to a high resolution lens used in an automatic detecting device, comprising a main lens cone. The high resolution lens used in the automatic detecting device is characterized in that the main lens cone is respectively provided with a front lens group A with positive focal power, a variable diaphragm C and a rear lens group B with positive focal power along the incidence direction of light from left to right; the front lens group A is formed by an agglutination group consisting of a positive crescent type lens A-1, a positive crescent type lens A-2 and a negative crescenttype lens A-3 which are closely connected; the rear lens group B is formed by an agglutination group consisting of a negative crescent type lens B-1, a positive crescent type lens B-2 and a flat concave lens B-3. The high resolution lens used in the automatic detecting device has the characteristics of high resolution and small distortion; the lens has functions of focusing and aperture adjustment and is firm and uniform in structure; and each moving component is reliable in movement, good in hand-feeling and beautiful in appearance.

Description

technical field [0001] The invention relates to a high-resolution lens for automatic detection equipment, belongs to the technical field of industrial automatic detection equipment, and relates to a high-definition, low-distortion video camera lens device. Background technique [0002] See image 3 The camera lens with a medium and long focal length (f′=35mm) of structure has been used in the field of photoelectric detection for nearly 20 years. Its performance index is low, the relative aperture is small (D / f′=1 / 2.2), and the distortion is as high as 3%; especially its lower resolution. It can only be adapted to ordinary CCD or CMOS cameras with 200,000-300,000 pixels. And the compatibility with the video camera is poor, it can only meet the needs of general viewing in the monitoring field. Contents of the invention [0003] The purpose of the present invention is to provide a high-resolution lens for automatic detection equipment, which is beneficial to improve the res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/167G02B7/04
Inventor 黄统樑屈立辉蔡清辉江细嫩
Owner FUJIAN FORECAM OPTICS CO LTD
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