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:
May. 01, 2001
Filed:
Feb. 24, 1999
Hiroki Koba, Higashiosaka, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A projector comprises as mounted on a chassis a light source, a projection lens for projecting light on a screen, dichroic mirrors positioned on an optical path from the light source for separating light into R, G and B, and a relay lens disposed on the longest of optical paths of R, G, B and interposed between the dichroic mirror and the projection lens for causing the light on the longest path to reach the projection lens. An adjusting mechanism is mounted on the chassis for moving the relay lens upward, downward, leftward or rightward in a plane orthogonal to the optical path thereof. The relay lens is moved for adjustment to make the corresponding irradiating light to be incident on the liquid-crystal panel within a minimum required range of irradiation.