Laser device capable of automatically adjusting focal length and control method

An automatic adjustment and laser technology, applied in the field of lasers, can solve the problems of fixed energy density, non-adjustable spot size and focal length, and inability to adapt to diverse environmental requirements.

Inactive Publication Date: 2021-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a laser and a control method that can automatically adjust the focal length, so as to solve the problems that the existing laser spot size and focal length cannot be adjusted, the energy density is fixed, and cannot be applied to diverse environmental requirements.

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  • Laser device capable of automatically adjusting focal length and control method

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Embodiment Construction

[0036] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0037] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention discloses a laser device capable of automatically adjusting a focal length and a control method. The laser device comprises a laser device, a control module and a focal length adjusting module, wherein the laser device comprises an optical resonant cavity, an excitation pumping system and a working substance, the optical resonant cavity at least comprises two circular movable lenses, the working substance is located between the two adjacent movable lenses, the excitation pumping system is located on the left side of the optical resonant cavity, a displacement sensor is mounted below each movable lens, the focal length adjusting module comprises linear motion mechanisms of which the number is the same as that of the movable lenses, each movable lens is carried on one linear motion mechanism, and the control module is electrically connected with the displacement sensors and the linear motion mechanisms and used for controlling the laser focal lengths and the laser spot sizes of the movable lenses which move on the linear motion mechanisms to be adjusted. The laser device can be widely applied to the fields of laser cutting, laser scanning, laser ranging and the like.

Description

technical field [0001] The invention belongs to the field of lasers, and in particular relates to a laser capable of automatically adjusting the focal length and a control method. Background technique [0002] Since the 21st century, lasers have been widely used in distance measurement, three-dimensional scanning, laser cutting, laser heat treatment, laser drilling and other aspects due to their high energy density and strong penetrating ability. [0003] However, the positions of the laser generator and the optical elements of the existing laser system are fixed, resulting in that the spot position and size of the laser cannot be adjusted. At the same time, the energy density of the laser with a fixed spot and focal length is fixed. Therefore, the general spot and Lasers with a fixed focal length can only be used in certain specific occasions and environments, which greatly limits the scope of application of the laser. Contents of the invention [0004] The purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/08H01S3/105H01S3/106
CPCH01S3/08H01S3/08059H01S3/105H01S3/106
Inventor 宋宏黄慧冯雪皓叶观琼贺双颜李培良
Owner ZHEJIANG UNIV
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