Mercury-Free Lamp and Lamp Apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 28, 2008
app pub date -
Aug 26, 2005
filing date -
Aug 27, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A mercury-free lamp including: a glass bulb (4) that is filled with a rare gas; a first internal electrode unit (19) and a second internal electrode unit (15) that are provided in the glass bulb (4); and an external electrode (24) that is provided on an outer surface of the glass bulb (4) in an area that corresponds to a discharge path, which is formed during lighting between the first internal electrode unit (19) and the second internal electrode unit (15), such that a positive column is generated along the discharge path and is expanded in transverse sectional area by the external electrode. The first internal electrode unit (19) is composed of internal electrodes (18) and (20), and the second internal electrode unit (15) is composed of internal electrodes (14) and (16).
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