Mark Lessard, business development manager for Oxford Instruments, Boston, says the company has patented a cold cathode
digital X-ray tube made from carbon nanotubes.
A number of applications are still using LCDs backlit by CCFLs (cold cathode
fluorescent lamps) powered by DC/AC inverters.
fluorescent lights (CCFLs) hidden behind LCD displays are being replaced.
Consuming less power and with no mercury, inherent in traditional cold cathode
fluorescent lamps, ReadyScan LED technology enables the Epson V300 Photo to offer an environmentally-friendly scanning solution.
All signs include the options of having the units illuminated by florescent tube, cold cathode
tube and tungsten halogen lamp technology.
"We believe this increase in brightness opens up new market opportunities for our customers and gives them a competitive alternative to today's Cold Cathode
Fluorescent Lamp (CCFL) backlighting technology for large format LCDs."
Both LCDs feature LCD panel, driver Ics, control circuit, and two replaceable CCFL (cold cathode
fluorescent lamp) backlights with a typical life of 50,000 hours, They also provide a wide viewing angle, reverse scan capability, an operating temperature of 0[degrees]C to 60[degrees]C, and AGLR (anti-glare, low reflection) surface treatment.
The upper ring houses four curved cold cathode
tubes each nearly 1.5m long.
The Skion system replaces the gun with a flat oxidized-cesiated-diamond film, which performs as a cold cathode
electron emitter structure placed a short distance behind the phosphor screen.
makes low-cost, compact gauges and controllers, including capacitance, piezo, Pirani, cold cathode
, and Full-Range gauges.
of Houston is developing a diamond cold cathode
electron source used in flat-panel display screens.