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:
Dec. 08, 1981
Filed:
Dec. 06, 1979
Applicant:
Inventors:
Kiyokazu Honda, Zushi, JP;
Yasuhiro Nieda, Yokosuka, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K / ;
U.S. Cl.
CPC ...
313113 ; 313117 ; 313222 ;
Abstract
A sealed beam lamp is provided, comprising a lamp envelope comprised of a reflector having an open front and a lens attached to the edge of the reflector, and a halogen bulb attached to the lamp envelope so as to face the lens and having a straight filament arranged along a direction of the diameter thereof and substantially parallel with the lens and a bulb envelope whose upper end surface portion is covered with a light-shielding layer except for those side wall portions of the bulb envelope facing the ends of the straight filaments.