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. 13, 1990
Filed:
Jan. 19, 1990
Masahiro Muramatsu, Shizuoka, JP;
Yazaki Corporation, , JP;
Abstract
To uniformly illuminate a needle and a dial plate coated with fluorescent substance by ultraviolet rays, the illuminate meter comprises an ultraviolet ray emitting lamp and a meter cover coated with a film for reflecting only ultraviolet rays emitted from the lamp but transmitting visible light emitted from the fluorescent substance on the needle and the dial plate, thus improving the illuminate intensity and uniformity for providing better indication recognizability and reading accuracy. Further, it is preferable to dispose one or plural reflector plates between the dial plate and the meter cover.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile