Method pertaining to vehicle headlamps which emit ultraviolet light, and an arrangement herefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 1995
Grant Date -
N/A
app pub date -
Aug 25, 1993
filing date -
Feb 25, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method pertaining to vehicle headlamps which emit ultraviolet light and which include a light source for generating both ultra-violet light and visible light, and a filter which is placed in the beam path between the light source and the surroundings and which is intended to substantially filter out visible light and to transmit ultraviolet light, said headlamp, however, unintentionally transmitting a given proportion of visible light, such as red and blue light, of low intensity. The invention is characterized by arranging the headlamp (1) so that the light source (2) and the filter (5; 6) in combination will intentionally allow a predetermined proportion of visible light of a light colour to pass therethrough; by causing said visible light to be sufficiently strong to dominate over said unintentionally emitted light on the part of a viewer, and by causing said predetermined proportion of visible light to have an intensity which lies beneath the intensity at which the light intentionally emitted would dazzle a viewer in combination with any other visible light intentionally emitted by the headlamp. The invention also relates to an arrangement.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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