Invention Grant
- Patent Title: Distance measuring device
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Application No.: US14362098Application Date: 2012-11-30
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Publication No.: US09677883B2Publication Date: 2017-06-13
- 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: EP11191588 20111201
- International Application: PCT/EP2012/074170 WO 20121130
- International Announcement: WO2013/079706 WO 20130606
- Main IPC: G01C3/08
- IPC: G01C3/08 ; G01S17/08 ; G01S7/481

Abstract:
The invention relates to an optoelectronic distance measuring device, comprising a transmitting unit and comprising a receiving unit of an electronic evaluating unit. The transmitting unit has a circuit board, a semiconductor laser, and a laser diode driver for transmitting high-frequency intensity-modulated optical radiation. In order to receive a component of the optical radiation reflected by a target object by means of a photosensitive electrical component, the receiving unit is equipped with an electrical output signal as a received signal, a conditioning unit for conditioning the received signal, and an analog/digital converter for digitizing the conditioned received signal. The electronic evaluating unit determines a distance from the distance measuring device to the target object on the basis of a signal propagation time using the digitized received signal. The semiconductor laser is attached to the circuit board as a laser substrate that does not have a housing.
Public/Granted literature
- US20140327902A1 DISTANCE MEASURING DEVICE Public/Granted day:2014-11-06
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