Illumination apparatus, and an illumination head and power source device used therefore
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 2008
Grant Date -
Oct 7, 2004
app pub date -
Mar 23, 2004
filing date -
Mar 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An illumination apparatus used by connecting an illumination head to a power source device, capable of supplying a rated current to individual light emitting devices of the illumination head by using a power source device of an identical rating irrespective of the specification of the illumination head, wherein the illumination head has a current detection resistor for detecting current flowing through the power supply circuit, and the resistance value of the resistor is selected so as to cause a voltage drop equal with a predetermined reference potential when a rated current is supplied to each of the light emitting devices, and the power source device is provided with a current controller for controlling the supplied current such that the potential for the voltage drop caused by the current detection resistor is equal with the reference potential.
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