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:
Feb. 24, 2015
Filed:
Sep. 14, 2010
Kenji Konno, Sakai, JP;
Kenji Konno, Sakai, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
Provided is a laser projection apparatus which forms each one frame by performing two-dimensional scanning with laser light and projects images on a screen () with blanking periods inserted between frames, the laser light having been outputted from a laser light source (). The laser projection apparatus is provided with a chive controlling device () which, in each of the blanking periods, changes the polarization state of the laser light having been outputted from the laser light source. This configuration enables speckle reduction by having the polarization state changed from one frame to another, and also enables favorable image projection since there is no change in luminance within each one of the frames. Thus, it is made possible to obtain image quality more favorable than that obtained conventionally.