公开(公告)号：US10591296B2

公开(公告)日：2020-03-17

申请号：US15661106

申请日：2017-07-27

Applicant: Robert Bosch Co. Ltd.

Inventor： Yat Shan Kwan ,  Wah Pong Chan ,  Eric Hung-Ying Yuen

IPC: G01C9/06 ,  G01C15/00 ,  G01C15/10 ,  G01K13/00 ,  G01R31/36

Abstract: A laser leveling tool comprises at least one laser diode for emitting a laser beam; a micro controller unit for controlling the operation of the laser diode; and a thermal sensor for sensing the internal temperature of the laser leveling tool; wherein the micro controller unit is configured to reduce the operation power of the laser diode when the sensed internal temperature reaches a temperature threshold.

公开(公告)号：US20180120103A1

公开(公告)日：2018-05-03

申请号：US15661106

申请日：2017-07-27

Applicant: Robert Bosch Co. Ltd.

Inventor： Yat Shan Kwan ,  Wah Pong Chan ,  Eric Hung-Ying Yuen

IPC: G01C9/06 ,  G01K13/00

CPC classification number: G01C9/06 ,  G01C15/004 ,  G01C15/105 ,  G01C2009/066 ,  G01K13/00 ,  G01R31/3648

Abstract: A laser leveling tool comprises at least one laser diode for emitting a laser beam; a micro controller unit for controlling the operation of the laser diode; and a thermal sensor for sensing the internal temperature of the laser leveling tool; wherein the micro controller unit is configured to reduce the operation power of the laser diode when the sensed internal temperature reaches a temperature threshold.