Title:
LINE LASER LEVEL
Document Type and Number:
WIPO Patent Application WO/2021/103734
Kind Code:
A1
Abstract:
Provided is a line laser level, comprising: a switch; a power supply; a temperature sensor used for measuring the ambient temperature of the line laser level; at least one laser diode used for emitting a laser beam; and a main control unit, said main control unit being separately and electrically connected to the switch, the power supply, the temperature sensor, and the laser diode; different temperature threshold intervals correspond to different work power levels, such that when the ambient temperature corresponds to a different temperature threshold interval, the main control unit adjusts the work power of the laser diode to the corresponding work power level. The present invention extends the work temperature range of line laser levels and ensures normal work state in a wider work temperature range (in either high or low temperatures).
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Inventors:
ZHANG OU (CN)
ZHU WEIPING (CN)
ZHU WEIPING (CN)
Application Number:
PCT/CN2020/113456
Publication Date:
June 03, 2021
Filing Date:
September 04, 2020
Export Citation:
Assignee:
CHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR CO LTD (CN)
International Classes:
G01C15/00
Foreign References:
| CN210922619U | 2020-07-03 | |||
| CN107664496A | 2018-02-06 | |||
| CN108123364A | 2018-06-05 | |||
| CN108762341A | 2018-11-06 | |||
| CN107045253A | 2017-08-15 | |||
| US20090141756A1 | 2009-06-04 |
Attorney, Agent or Firm:
BEIJING DACHENG LAW OFFICES, LLP (CN)
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