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. 15, 1999
Filed:
Oct. 15, 1996
Applicant:
Inventors:
Kenneth David Perry, New Lothrop, MI (US);
John M Krasny, Grand Blanc, MI (US);
Assignee:
Delco Electronics Corporation, Kokomo, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
362 26 ; 362 26 ; 362 29 ; 362 30 ;
Abstract
A transparent pointer has a rear surface coated with white paint and the remainder is covered by a highly reflective metal layer except for a light emitting indicator strip and a light receiving surface. Stationary high flux LEDs mounted behind the pointer illuminate the light receiving surface. Received light is efficiently reflected to the indicator strip to produce a bright line suitable for viewing through a dark face plate to achieve a dark dead front appearance. To avoid reflections from the pointer the reflective layer is covered with a black film.