OPTICAL SYSTEM FOR FOLDED MULTI-OPTICAL-AXIS LASER TORCH, AND LASER TORCH - GUANGZHOU UNIONLUX ELECTRONIC TECH CO LTD

Title:

OPTICAL SYSTEM FOR FOLDED MULTI-OPTICAL-AXIS LASER TORCH, AND LASER TORCH

Document Type and Number:

WIPO Patent Application WO/2020/248344

Kind Code:

A1

Abstract:

An optical system for a folded multi-optical-axis laser torch and a laser torch (100). The optical system comprises an incident optical system, a wavelength conversion device (901), and an emitting optical system. The incident optical system comprises a laser device (201) and multiple optical reflectors (401, 402). The laser device (201) is used to generate excitation light. The multiple optical reflectors (401, 402) are used to reflect the excitation light multiple times to fold a beam, form multiple optical axes, and guide the final folded excitation light to the wavelength conversion device (901). The wavelength conversion device (901) is used to absorb a portion of the excitation light to form excited light. The excited light and the portion of the excitation light not absorbed by the wavelength conversion device (901) form illumination light, and the emitting optical system emits an illumination light. An optical axis of the excitation light generated by the laser device (201) does not coincide with an emitting optical axis of the illumination light. The multiple optical reflectors (401, 402) enable the excitation light to be folded by a multi-axis optical path and then enter the wavelength conversion device (901) to form the illumination light, thereby achieving a high-efficiency long-distance illumination effect while reducing risks involved in using a high-power laser technique. In addition, the laser torch (100) constructed on such basis has a compact size.

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Inventors:

HUANG CHENG (CN)
ZHENG ZHIGUO (CN)
LI XIUBIN (CN)
CHEN GUOPING (CN)

Application Number:

PCT/CN2019/098934

Publication Date:

December 17, 2020

Filing Date:

August 01, 2019

Export Citation:

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Assignee:

GUANGZHOU UNIONLUX ELECTRONIC TECH CO LTD (CN)

International Classes:

F21L4/00; F21V13/14; F21Y115/30

Foreign References:

CN205880480U	2017-01-11
CN205880480U	2017-01-11
CN105911805A	2016-08-31
CN105864647A	2016-08-17
CN107272310A	2017-10-20
CN108061996A	2018-05-22
CN104141923A	2014-11-12
US20130208478A1	2013-08-15

Attorney, Agent or Firm:

GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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