Extender lens and laser processing optical system

A lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of low image definition, large aberration, and difficulty in meeting the needs of use, and achieve the effect of high definition, small aberration, and narrowing of the field of view

Active Publication Date: 2015-11-11
HANS LASER TECH IND GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Using an ordinary extender with an industrial lens can be used to enlarge the magnification, which can reduce the field of view to 1 / 2 of the original effect, but the image definition is low and the aberration is large, which is difficult to meet the needs of use

Method used

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  • Extender lens and laser processing optical system
  • Extender lens and laser processing optical system
  • Extender lens and laser processing optical system

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0027] see figure 1 , the magnification lens 100 of one embodiment includes a diaphragm 10, a first lens 20, a second lens 30, a third lens 40, a fourth lens 50, a fifth lens 60 and a first lens arranged in sequence along the propagation direction of incident light. Six lenses 70 . ...

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Abstract

The invention relates to an extender lens and a laser processing optical system. The extender lens includes a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are successively arranged along the progressing direction of an incident light, wherein the first lens is a meniscus lens and has a meniscus direction opposite to the progressing direction of the incident light. The second lens is a double-concave negative lens. The third lens is meniscus lens and has a meniscus direction in line with the progressing direction of the incident light. The second lens and the third lens glue together; the fourth lens is a meniscus lens and has a meniscus direction opposite to the progressing direction of the incident light. The fifth lens is a double-concave negative lens. The fourth lens and the fifth lens glue together. The sixth lens is a double-convex positive lens. The extender lens has a focal length of -14.4367 mm and an entrance pupil diameter of 3.16875 mm. The extender lens can increase image resolution and has small aberration.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a magnification lens and a laser processing optical system. Background technique [0002] At present, the application of laser processing is becoming more and more extensive, and the laser processing system with machine vision effect is the development trend of the industry. As the requirements for machining accuracy become higher and higher, images with a smaller field of view need to be captured visually. Using an ordinary extender with an industrial lens can be used to magnify the field of view to 1 / 2 of the original effect, but the image definition is low and the aberration is large, which is difficult to meet the needs of use. Contents of the invention [0003] Based on this, it is necessary to provide a magnifying lens capable of improving image definition and having less aberration. [0004] Further, a laser processing optical system is provided. [0005] A m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
Inventor 谢泽楷王奎王兰兰曹锋王瑾高云峰
Owner HANS LASER TECH IND GRP CO LTD
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