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:
Nov. 24, 1987
Filed:
Jun. 30, 1986
Applicant:
Inventor:
Katsumi Makino, Inazawa, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362148 ; 362260 ; 362346 ; 362330 ; 52 28 ;
Abstract
A lighting device for an elevator car including light sources for emitting light toward the interior of the elevator car and a spectral resolution filter spaced apart and facing the light sources for spectrally resolving the light emitted from the light sources into spectral light with varying colors. The light sources may take the form of a combination of a mirror ball with reflecting surfaces on its outer periphery and a light projector or the form of a plurality of point light sources mounted in a dispersed pattern. The spectral resolution filter may take the form of a flat half mirror surface of a semisphere.