Indicator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 12, 1991
Grant Date -
N/A
app pub date -
Feb 1, 1989
filing date -
Feb 3, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein is an improvement of an indicator such as a speed meter, a tachometer, or the like for use in a motor vehicle. The indicator comprises a scale plate having a pointer rotatably mounted thereon, indicia provided on the scale plate and containing fluroescent brigthener, the indicia indicating a specific value in cooperation with the pointer, a single ultraviolet light source for illuminating the indicia, and technique for equalizing the brightness of the indicia. The equalizing technique can comprises varying the quantity of fluorescent brigtener contained in the indicia according to the distance from the ultraviolet light source of the indicia.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully