Circuit device for dimming a discharge lamp
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 2002
Grant Date -
N/A
app pub date -
Nov 1, 2000
filing date -
Nov 2, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The light output of a lighting arrangement is adjustable at two levels by, for example, 'toggling'. During a predetermined time interval immediately after ignition, the lamp is supplied with additional power to heat up. Immediately after stationary conditions have been reached, the light output is automatically adjusted to the lowest of the two levels. During the predetermined time interval, the light output is also controlled so as to be at the lowest of the two levels, so that relatively large changes in the level of the light output during the predetermined time interval, and immediately after it, are prevented.
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