The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2017
Filed:
Sep. 04, 2012
Reto Metzler, Rebstein, CH;
Bernhard Fiegl, Marbach, CH;
Kurt Giger, Rüthi, CH;
LEICA GEOSYSTEMS AG, Heerbrugg, CH;
Abstract
An electro-optical distance measuring device includes a laser driver for a laser diode for emitting laser light pulses. The laser driver has a laser diode voltage supply for providing a voltage below a laser threshold voltage of the laser diode, an inductive component in a supply path of the laser diode, and an electronic switching element. The electronic switching element is arranged in an interacting manner such that a current flow through the inductive component can be generated in a first switching position of the switching element and the current flow can be conducted through the laser diode in a second switching position of the switching element. One of the laser light pulses can be emitted as the result of a switch from the first switching position to the second switching position, and laser light cannot be emitted in the static first switching position or the static second switching position.