crystal shutter

crystal shutter

[¦krist·əl ′shəd·ər]
(electromagnetism)
Mechanical waveguide or coaxial-cable shorting switch that, when closed, prevents undesired radio-frequency energy from reaching and damaging a crystal detector.
References in periodicals archive ?
Specification as:- (1) Projection system 3 LCD Technologies, RGB liquid crystal shutter. (2) LCD panel 0.6 to 0.8 inch with MLA (D 10).
Using the ship's existing signal lamp outfitted with a camera and liquid crystal shutter, the FLTC both sends and receives optical lamp communications via an intuitive chat session on a tablet computer.
Specs: RGB liquid crystal shutter projection system, 1080p, 2.1x zoom, Throw Ratio 1.34-2.87, 4,000 hours lamp life, 600,000:1 contrast ratio, 2400 lumens, 334W power consumption.
The liquid crystal shutter, or lens, is a substantial improvement over the spinning mechanical shutter.
Tenders are invited for lCD Projector: RGB liquid crystal shutter projection system.0.63 inch wide panel with MLA (1)7).
The headset, with its liquid crystal shutters activated by infra-red sensors, tricks the brain into 'seeing' just one, startlingly real, picture.
The computer display is connected to an infrared device, similar to a television remote control, that sends signals to liquid crystal shutters in the 3-D glasses.