Optical element, optical module and beam shaping method
A technology of optical components and optical modules, applied in the field of optics, can solve problems such as uneven distribution of spot energy density, limited control ability of divergence angle, difficulty in meeting application requirements, etc.
Pending Publication Date: 2022-08-02
FOCUSLIGHT TECH
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Problems solved by technology
[0004] In order to solve the problem of uneven distribution of spot energy density caused by the large divergence angle of the output beam of the semiconductor laser, it is currently possible to control and adjust the divergence angle of the output beam of the semiconductor laser to a certain extent by setting a microstructure on the optical element, but this This method has limited ability to control the divergence angle, and has limitations in the application of long-distance spot. The energy distribution of the output spot after microstructure control is still difficult to meet the corresponding application requirements.
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[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
[0053] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or is usually placed when the product of the application is used. The orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application. Furthermore, the terms "first", "second", etc. are only used to differ...
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The invention provides an optical element, an optical module and a light beam shaping method, relates to the technical field of optics, and can realize light beam superposition by cutting and rearranging emergent light beams, so that received light spots have energy distribution with preset requirements. The optical element comprises a transmission part and a reflection part, the transmission part is adjacent to the reflection part, the transmission part comprises a transmission incident surface and a transmission emergent surface which are opposite to each other, the reflection part comprises a first reflection surface and a second reflection surface which are opposite to each other, and incident light is shaped and emitted through the optical element, the incident light comprises a part of light beams passing through the main optical axis and then forms light spots with first energy distribution on the receiving surface after sequentially penetrating through the transmission incident surface and the transmission emergent surface, and the other part of light beams in the incident light are reflected by the first reflecting surface and the second reflecting surface and then emerges on the receiving surface to form light spots with second energy distribution; and the light spots of the first energy distribution and the light spots of the second energy distribution are superposed on the receiving surface to form light spots of third energy distribution.
Description
technical field [0001] The present application relates to the field of optical technology, and in particular, to an optical element, an optical module and a beam shaping method. Background technique [0002] Due to the advantages of small size, light weight, high reliability, long service life and low power consumption, semiconductor lasers have been widely used in various fields of the national economy, such as medical treatment and industrial processing. However, for different fields and different types of specific applications, the requirements for the overall brightness, power and energy density distribution of the output spot are different. In some applications in the field, the beam quality of the laser output beam is relatively Strict parameter requirements or individual requirements for specific applications. [0003] The divergence angle of the beam emitted by the semiconductor laser is large, and the superposition of the beam at the center position is stronger tha...
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IPC IPC(8): G02B27/09
CPCG02B27/0938G02B27/0977G02B27/0983G02B27/0955G02B27/0961
Inventor 蔡磊刘兴胜
Owner FOCUSLIGHT TECH