Patent · US Active

Laser projection device, method for its operation, and laser projector

US11064170B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Alexander Ehlert · Reutlingen, DE
Christoph Puttmann · Aspenhausiedlung, DE
Christoph Delfs · Bretten, DE

Key dates

Filing date	Sep 27, 2018
Grant date	Jul 13, 2021
Priority date	—
Expiry date	Sep 27, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B26/101
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A laser projection device, including at least one laser diode for generating at least one laser beam. The laser projection device includes at least one laser driver for operating the at least one laser diode; at least one image processing circuit to supply control data for the at least one laser driver; at least one central processor and/or driver; and at least one control and/or regulating unit, which is configured to block the at least one laser driver in response to an occurrence of at least one fault. The at least one control and/or regulating unit includes at least one nonvolatile memory, in which at least a minimum set of monitoring functions is stored.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.