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:
Apr. 14, 2015
Filed:
Jan. 25, 2012
Lucio Kilcher, Montreux, CH;
Faouzi Khechana, Crissier, CH;
Lucio Kilcher, Montreux, CH;
Faouzi Khechana, Crissier, CH;
Lemoptix SA, Lausanne, CH;
Abstract
An optical micro-projection system comprising the following components: at least one laser light source (); at least one movable mirror () for deviating light from said light source to allow generation of images on a projection surface (); a self mixing module for measurement of the distance () between the projection source and a projection surface, said self mixing module comprising: —at least one photodiode () for monitoring the light emission power of the laser light source; —an optical power variation counter for counting optical power variations (); successive displacements of said mirror allowing the self mixing module providing successive projection distance measurements of a plurality of points of said projection surface. A projection method for optical micro-projection system and a distance measurement method are also provided.