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:
Oct. 03, 2023
Filed:
Sep. 20, 2021
Stmicroelectronics Ltd, Netanya, IL;
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Alex Domnits, Gedera, IL;
Elan Roth, Ramat Hasharon, IL;
Davide Terzi, Bergamo, IT;
Luca Molinari, Piacenza, IT;
Marco Boschi, Lissone, IT;
STMicroelectronics LTD, Netanya, IL;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A scanning laser projector includes an optical module and projection engine. The optical module includes a laser generator outputting a laser beam, and a movable mirror scanning the laser beam across an exit window defined through the housing in a scanning pattern wider than the exit window such that the laser beam is directed through the exit window in a projection pattern that is smaller than and within the scanning pattern. A first light detector is positioned about a periphery of the exit window such that as the movable mirror scans the laser beam in the scan pattern, at a point in the scan pattern where the laser beam is scanned across an interior of the housing and not through the exit window, the laser beam impinges upon the first light detector. The projection engine adjusts driving of the movable mirror based upon output from the first light detector.