Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Cold cathode
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
===Lamps=== Cold-cathode lamps include [[cold-cathode fluorescent lamp]]s (CCFLs) and [[neon lamp]]s. Neon lamps primarily rely on excitation of gas molecules to emit light; CCFLs use a discharge in mercury vapor to develop ultraviolet light, which in turn causes a [[fluorescence|fluorescent]] coating on the inside of the lamp to emit visible light. Cold-cathode fluorescent lamps were used for [[backlight]]ing of [[LCD]]s, for example computer monitors and television screens. In the lighting industry, “cold cathode” historically refers to luminous tubing larger than 20 mm in diameter and operating on a current of 120 to 240 milliamperes. This larger-diameter tubing is often used for interior alcove and general lighting.<ref>{{cite web | title = Ifay guide info electric discharge lighting systems, cold cathode| url =http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=IFAY.GuideInfo&ccnshorttitle=Electric+Discharge+Lighting+Systems,+Cold+Cathode&objid=1074096534&cfgid=1073741824&version=versionless&parent_id=1073988136&sequence=1}}</ref><ref>{{cite web|title=EGL lighting products |url=http://www.egl-lighting.com/products.html |access-date=9 February 2011 |url-status=dead |archive-url=https://web.archive.org/web/20101026042259/http://www.egl-lighting.com/products.html |archive-date=October 26, 2010 }}</ref> The term "neon lamp" refers to tubing that is smaller than 15 mm in diameter{{citation needed|date=September 2015}} and typically operates at approximately 40 milliamperes. These lamps are commonly used for neon signs.
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)