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:
Jan. 12, 1993
Filed:
Sep. 27, 1990
Kenji Sakai, Yokosuka, JP;
Tsutomu Watanabe, Yokosuka, JP;
Toshiba Lighting & Technology Corp., Tokyo, JP;
Abstract
A lamp device includes a mirror reflector having a cylindrical, hollow lamp mounting portion at a rear end portion of a reflector body having a curved suface, a lamp housed in the mirror reflector and having an end with a sealing portion into which the lamp mounting portion is inserted, and an adhesive, filled between the outer surface of the sealing portion and the inner surface of the lamp mounting portion while the lamp sealing portion is inserted into the lamp mounting portion of the reflector body, for bonding the mirror reflector to the lamp. A space region is formed inside the lamp mounting portion and is surrounded by the inner surface of the lamp mounting portion, the outer surface of the sealing portion, and the adhesive filled therebetween. The end of the space region on the side of the curved surface is open, and the space region prevents heat conduction between the lamp mounting portion and the sealing portion.