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:
Jun. 23, 2009
Filed:
Dec. 11, 2006
Applicants:
Futoshi Kuroki, Nagano, JP;
Toshimitsu Iwai, Tokyo, JP;
Hiroshi Kida, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G02B 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The projection display apparatus includes rotation regulating elements for inhibiting a rotation of the mount ring in a tightening direction, and a stopper element displaceable between a non-locked position and a locked position, wherein the stopper element is displaced to the non-locked position when the mount ring is rotated to a rotating position in a loosening direction from a predetermined position in the tightening direction, and is displaced to the locked position when the mount ring is rotated to the predetermined position in the tightening direction.