Invention Grant
- Patent Title: Electro-optical distance measuring device
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Application No.: US14135414Application Date: 2013-12-19
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Publication No.: US09753139B2Publication Date: 2017-09-05
- Inventor: Kurt Giger , Reto Metzler , Bernhard Fiegl
- Applicant: LEICA GEOSYSTEMS AG
- Applicant Address: CH Heerbrugg
- Assignee: LEICA GEOSYSTEMS AG
- Current Assignee: LEICA GEOSYSTEMS AG
- Current Assignee Address: CH Heerbrugg
- Agency: Maschoff Brennan
- Priority: EP11180282 20110906
- Main IPC: G01S17/10
- IPC: G01S17/10 ; H01S5/042 ; H01S5/068 ; H03K3/57 ; G01B11/14 ; H01S5/00 ; G01S7/484

Abstract:
An electro-optical distance measuring device includes a laser driver for a laser diode for emitting laser light pulses. The measuring device further includes a laser diode voltage supply having a cascade of at least two voltage regulators, each of which provides an output voltage at a level below a laser threshold voltage of the laser diode. By changing from a first to a second switching position of an electronic switching element of the measuring device, one of the laser light pulses can be emitted and, in the steady-state first and the steady-state second switching positions, no laser light is emitted.
Public/Granted literature
- US20140204396A1 ELECTRO-OPTICAL DISTANCE MEASURING DEVICE Public/Granted day:2014-07-24
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