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A high-resolution oblique lens

A high-resolution, lens technology, applied in optical components, instruments, optics, etc., can solve problems such as full field of view and clear imaging of difficult-to-tilt targets, and achieve the effect of wide adaptability, elimination of spherical aberration, and elimination of distortion.

Active Publication Date: 2022-07-22
中国科学院自动化研究所苏州研究院
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

3D line laser measurement technology requires a lens to shoot oblique targets, but traditional lenses are difficult to clearly image the entire field of view of oblique targets due to the limitation of depth of field

Method used

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  • A high-resolution oblique lens
  • A high-resolution oblique lens
  • A high-resolution oblique lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] like Figure 1-14 Shown is a high-resolution oblique lens with optical axes distributed from the object side to the image side:

[0054] The first spherical lens 1 with positive refractive power includes a first surface on the object side and a second surface on the image side;

[0055] The second spherical lens 2 with positive refractive power includes a third surface on the object side and a fourth surface on the image side;

[0056] Light bar 3, including the fifth side;

[0057] The third spherical lens 4 with negative refractive power includes a sixth surface on the object side and a seventh surface on the image side;

[0058] The fourth spherical lens 5 with negative refractive power includes an eighth surface on the object side and a ninth surface on the image side;

[0059] The fifth spherical lens 6 with positive refractive power includes a tenth surface on the object side and an eleventh surface on the image side;

[0060] The sixth spherical lens 7 with n...

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Abstract

The invention discloses a high-resolution oblique image lens, which relates to the technical field of industrial cameras. The optical axis is sequentially distributed from the object side to the image side with a first spherical lens with positive refractive power, a second spherical lens with positive refractive power, a diaphragm, a third spherical lens with negative refractive power, and a fourth spherical lens with negative refractive power, The fifth spherical lens with positive power, the sixth spherical lens with negative power, the seventh spherical lens with positive power, and the eighth spherical lens with positive power. The present invention designs eight spherical oblique image lenses that satisfy Sham's law and are adapted to the target plane with a field of view of 0-500mm, and can image the oblique target with high resolution and high resolution in the full field of view, and meet the needs of industrial cameras in the field of 3D line laser measurement. .

Description

technical field [0001] The invention relates to the technical field of industrial cameras, in particular to a high-resolution oblique imaging lens. Background technique [0002] With the development of optics, image processing and computer technology, 3D line laser measurement technology has been widely used. It uses an industrial camera to capture the corresponding image information, performs a series of processing on the image, extracts the required information, and finally achieves the purpose of measurement. The 3D line laser measurement technology requires a lens to shoot an inclined target, and the traditional lens is limited by the depth of field, and it is difficult to image the inclined target clearly in the whole field of view. [0003] Sham's Law states that when the extended planes of the subject plane, the image plane and the lens plane intersect in a straight line, a comprehensive and clear image can be obtained. The discovery of Sham's law provides a theoret...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B27/00
CPCG02B13/005G02B27/0025
Inventor 赵效楠汪雪林顾庆毅
Owner 中国科学院自动化研究所苏州研究院