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Small ultraviolet laser beam expanding and collimating device

An ultraviolet laser and ultraviolet laser technology, applied in the laser field, can solve the problems of space limitation of the external optical path, increase the space for building the external optical path of the laser, etc.

Active Publication Date: 2021-01-22
北京卓镭激光技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In the field of practical laser applications, the use of space for the external optical path is often limited, and there is a requirement to save space. Therefore, higher requirements are placed on the total working length of the laser beam expander and collimator. The traditional laser beam expander and collimator usually Longer working distance is needed, which increases the construction space of foreign and domestic optical paths in practical laser applications

Method used

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  • Small ultraviolet laser beam expanding and collimating device
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  • Small ultraviolet laser beam expanding and collimating device

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Embodiment Construction

[0025] The following is attached Figure 1-3 The application is described in further detail.

[0026] The embodiment of the present application discloses a small-sized ultraviolet laser beam expander and collimator. refer to figure 1 , in order to make the laser beam expansion and collimation device more miniaturized, the small ultraviolet laser beam expansion and collimation device includes a beam expansion assembly and a collimation assembly that are arranged in sequence along the laser transmission direction, the beam expansion assembly includes a first lens L1, and a collimation assembly The assembly includes a second lens L2. The first lens L1 and the second lens L2 are located on the same optical axis, the first lens L1 is set as a plano-concave spherical lens, the second lens L2 is set as a plano-convex spherical lens, and the beam expanding and collimating device is an afocal device. The first lens L1 and the second lens L2 form a Galilean telescopic system, and are...

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Abstract

The invention relates to a small ultraviolet laser beam expanding and collimating device, which belongs to the technical field of laser. The device comprises a first lens and a second lens which are sequentially arranged along the transmission direction of ultraviolet laser, the first lens and the second lens are positioned on the same optical axis, the first lens is a plano-concave spherical lens, and the second lens is a plano-convex spherical lens. The beam expanding and collimating device is an afocal device; and the focal power phi 1 of the first lens is less than 0. Compared with the prior art, the ultraviolet laser beam expanding and collimating device has the effect that the ultraviolet laser beam expanding and collimating device is more miniaturized.

Description

technical field [0001] The present application relates to the field of lasers, in particular to a small-sized ultraviolet laser beam expander and collimator. Background technique [0002] The traditional laser beam expander system is usually divided into Galileo telescope laser beam expander system and Kepler telescope laser beam expander system. Among them, the Galileo telescope type is combined with a negative lens and a positive lens, and the Kepler telescope type is combined with two positive lenses. Since the laser beam expander system is mainly used in laser processing technology, and in order to increase the power of the received light source, the internal afocal Galileo telescope laser beam expander system is used as the basic selection. In the laser beam expander, it is not only necessary to complete the beam expansion of the corresponding magnification, but also to ensure the beam quality of the outgoing light. [0003] In the field of practical laser application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/09G02B27/30
CPCG02B27/0927G02B27/0955G02B27/30
Inventor 于海波
Owner 北京卓镭激光技术有限公司
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