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. 29, 2008
Filed:
Jun. 15, 2005
Takeshi Yamazaki, Hachioji, JP;
Takeshi Yamazaki, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The overlapping portions of an image composed of partial images projected on a dome-shaped screen from image projecting means are shaded in light by means of light shading mechanisms which are provided for the corresponding image projecting means. Each light shading mechanism includes at least one light shading plate with a notch formed therein, and after projection, the notch is defined by a first curved edge line corresponding to a center line of a first over-lapping portion of the overlapping portions and a second curved edge line corresponding to a center line of a second overlapping portion of the overlapping portions. As a result, the luminance of the image projected on the dome-shaped screen can be easily adjusted in the same manner as a planer screen.