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Optical system for laser beam shaping and laser system comprising same

An optical system and beam shaping technology, applied in the field of optical systems, can solve very sensitive problems

Active Publication Date: 2017-04-26
HILTI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the optical system is very sensitive to the inclination of the first reflective surface relative to the incident laser beam

Method used

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  • Optical system for laser beam shaping and laser system comprising same
  • Optical system for laser beam shaping and laser system comprising same
  • Optical system for laser beam shaping and laser system comprising same

Examples

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Embodiment Construction

[0026] figure 1 Shown is a laser system 1 with a first embodiment of an optical system 2 according to the invention. The laser system 1 comprises a housing 3 and a beam arrangement 4 arranged in the housing 3 , which includes a beam source 5 and the beam shaping optics 2 according to the invention.

[0027] The beam source 5 is designed as a semiconductor laser that generates a primary laser beam 6 of the visible spectrum, for example a red laser beam with a wavelength of 635 nm or a green laser beam with a wavelength of 532 nm. After the primary laser beam 6 emerges from the beam source 5, an expansion phenomenon of the laser beam 6 occurs due to divergence, that is to say the beam diameter of the primary laser beam 6 increases with the This increases with increasing distance of the laser beam 6 from the beam source 5 .

[0028] The optical system 2 according to the invention is arranged in the beam path downstream of the beam source 5 . The optical system 2 is configured ...

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PUM

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Abstract

The invention relates to an optical system for laser beam shaping and a laser system comprising such a system. The optical system (2) for shaping the laser beam (6) comprises: an optical element, which is at least partially configured as a base body ( 7), the side surface is at least partially configured as a transmission surface for the laser beam, the base body comprises a first recess (8), the first recess has a bottom surface (14) arranged in the top surface of the base body and is at least partially configured as a laser beam emission surface. The first reflective surface of the beam and produces an at least partially annular side (15) of the laser beam (22). The basic body comprises a second recess (9), which has a bottom surface (17) arranged in the bottom surface of the basic body, a top surface (18) at least partially configured as a transmission surface for the laser beam, and the bottom surface and the top surface An adjoining side surface (19) is formed at least partially as a second reflection surface for the at least partially annular laser radiation (22).

Description

technical field [0001] The invention relates to an optical system for beam shaping of a laser beam and to a laser system comprising such an optical system. Background technique [0002] The incident laser beam is basically split into three parts at the interface: the first part is reflected on the interface (reflected laser beam), the second part passes through the interface into the second optical medium (transmitted laser beam beam) and a third part is absorbed at the interface (absorbed laser beam). A plane disposed between two media having different refractive indices is defined as an interface. The interface at which the laser beam largely passes from the first optical medium into the second optical medium is referred to as a transmission surface. The interface at which the laser beam is largely deflected within an optical medium is referred to as a reflective surface. The amount of reflected, transmitted and absorbed laser radiation can be varied, for example, by th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/09
CPCG01C15/004G02B27/0927G02B27/0944G02B27/095G02B27/0977G02B27/106G02B27/143G02B19/0071G02B19/0047G02B19/0028
Inventor L-K·丹格S·巴尔特
Owner HILTI AG