cold cathode

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cold cathode

n
(Electronics) electronics a cathode from which electrons are emitted at ambient temperature, due to a high potential gradient at the surface
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Noun1.cold cathode - a cathode that is a source of electrons without being heated
cathode - a negatively charged electrode that is the source of electrons entering an electrical device
References in periodicals archive ?
Tenders are invited for supply of cold-cathode fluorescent lamps (ccfls) for lcds of controllers
LEDs have consigned cold-cathode fluorescent (CCFL) tubes to the dustbin of history.
Curved in-floor white 3,000K LEDs matches ceiling cold-cathode cove lighting.
As LED backlight is gradually replacing cold-cathode fluorescent lamps (CCFLs), the LED TV penetration rate is expected to surge to 65~70% this year from 40% of last year, according to Unity executives.
Other efficient lighting types include cold-cathode fluorescent lamps (CCFLs), which provide backlighting for LCD displays, and low-voltage lighting, lighting that operates at 30 volts or less and provides a lot more flexibility in design and location.
The cold room design (flat walls with coved corners, cold-cathode lighting, point-of-use HEPA filtration, movable, locking stainless steel workbenches and seamless flooring) also permits easy, rapid cleaning and allows for establishment of immediate product changeover procedures.
Additionally, the DC260 has a 22-inch gooseneck to capture larger or wide-angle images and two cold-cathode lamps that can uniformly illuminate objects from any angle.
Demand for LEDs for backlighting will grow rapidly as they replace cold-cathode tubes.
The line includes dc-ac power supplies that drive the cold-cathode fluorescent lamps (CCFL)in LCD backlighting applications to support displays as small as 2 in.
Click, as it's called, features a slender, cold-cathode fluorescent light that's easy on the eyes and will last 20,000 hours; comes in blue, silver or charcoal metallic; and will retail for $29.
Each dimming module is multi-rated to control incandescent, fluorescent, low-voltage, neon, cold-cathode, fan-speed and nondim sources.
Other features include cold-cathode lighting, a 50-page automatic document feeder and a flat bed scanning capability that allows the product to scan documents as small as 1" x 1" or objects not suitable for the document feeder.