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1987 Ching Wan Tang and Steven Van Slyke at Eastman Kodak create the first practical organic light-emitting diode (OLED). 1990 Michael Ury, Charles Wood, and several colleagues develop the sulfur lamp. 1991 Philips invents a fluorescent lightbulb that lasts 60,000 hours using magnetic induction. 1994 T5 lamps with cool tip are introduced to ...
Lighting - Wikipedia ... Lighting
A lamp in an operating room. A surgical light – also referred to as an operating light or surgical lighthead – is a medical device intended to assist medical personnel during a surgical procedure by illuminating a local area or cavity of the patient. A combination of several surgical lights is often referred to as a “surgical light system”.
Light switch - Wikipedia ... Light switch
Compact fluorescent lamp
The flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron ...
Two modern electric lamps with lampshades. A lampshade is a fixture that envelops the lightbulb on a lamp to diffuse the light it emits. Lampshades can be made out of a large variety of materials like paper, glass, fabric, stone, or any material that let light in. Oftentimes conical or cylindrical in shape, lampshades can be found on floor, desk, tabletop, or suspended lamps.
Digital light processing (DLP) is a set of chipsets based on optical micro-electro-mechanical technology that uses a digital micromirror device. It was originally developed in 1987 by Larry Hornbeck of Texas Instruments. While the DLP imaging device was invented by Texas Instruments, the first DLP-based projector was introduced by Digital ...
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