Invisible laser system and optical path visualization method thereof

Patent metadata

Field	Value
Publication number	US-10449630-B2
Application number	US-201515108272-A
Country	US
Kind code	B2
Filing date	Dec 14, 2015
Priority date	Aug 11, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

An invisible laser system and an optical path visualization method thereof are disclosed. The invisible laser system comprises an invisible laser light generator for generating invisible laser light; a visible light generator for generating visible light; and an optical path visualization component arranged in optical paths of the invisible and visible light, and comprising a first and second incident end and a first outgoing end. The invisible laser light is incident on the first incident end, and the visible light is incident on the second incident end. All of the invisible laser light and at least part of the visible light are emitted in parallel with each other at the first outgoing end. All of the invisible laser light is present in a direction parallel with the optical path of the visible light, and no invisible laser light is present in other directions, so radiation risks are eliminated.

First claim

What is claimed is:

1. An optical path visualization method of an invisible laser system, wherein the invisible laser system comprising: an invisible laser light generator for generating invisible laser light; a visible light generator for generating visible light; and an optical path visualization component, wherein the optical path visualization component is arranged in the optical path of the invisible laser light and the optical path of the visible light, and the optical path visualization component comprises a first incident end, a second incident end, and a first outgoing end,
the method comprises steps of:
adjusting the invisible laser light generator and the optical path visualization component, such that the invisible laser light is incident on the first incident end, reflected on an interface of the optical path visualization component and output at the first outgoing end; and
adjusting the visible light generator such that the visible light is incident on the second incident end, refracted at the interface, and output at the first outgoing end, and at least part of the visible light is guided to be parallel with the invisible laser light,
wherein the optical path visualization component comprises a polarized beam splitter formed by bonding a first right-angled prism and a second right-angled prism;
wherein the interface is an interface of the ramp of the first right-angled prism and the ramp of the second right-angled prism, the step of adjusting the invisible laser light generator and the optical path visualization component comprises: adjusting the invisible laser light to be vertically incident on the first side of the first right-angled prism, totally reflected on the interface, and vertically emitted on the second side of the first right-angled prism; and
the step of adjusting the visible light generator comprises: adjusting the visible light to be vertically incident on a side of the second right-angled prism opposite to the second side of the first right-angled prism, and vertically and at least partially emitted on the second side of the first right-angled prism.

2. The method according to claim 1 , wherein,
the step of adjusting the visible light generator comprises: adjusting the visible light generator such that at least part of the visible light is guided to be coaxial with the invisible laser light.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Wang Haiping
• Guo Dong
• Qiang Hong
• Yan Xu

Classifications

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• C03B33/0222

  Scoring using a focussed radiation beam, e.g. laser · CPC title

• B23K26/0608

  in the same heat affected zone [HAZ] (B23K26/0613, B23K26/0619 take precedence) · CPC title

• B23K26/042

  Automatically aligning the laser beam · CPC title

• G02B27/1006

  for splitting or combining different wavelengths (G02B27/1086, G02B27/141 take precedence) · CPC title