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. 14, 2008
Filed:
Aug. 23, 2005
Yasumasa Sawai, Yamatotakada, JP;
Tomiei Kuwa, Musashino, JP;
Yasumasa Sawai, Yamatotakada, JP;
Tomiei Kuwa, Musashino, JP;
Konica Minolta Opto, Inc., Hachioji-Shi, JP;
Abstract
In an image projection apparatus, the deflection axis of the pixels of a display device is parallel to the longer sides of the display area of the display device, and the entrance pupil of a projection optical system is displaced from the line normal to the center of the display area in the direction parallel to the shorter sides of the display device. The distance from the display device to the optical component closest thereto is determined based on the intersection between the lowermost ray of projection light that leaves the lower end of the display area and reaches the entrance pupil of the projection optical system and the uppermost ray of illumination light that leaves the illumination optical system and reaches the upper end of the display device.