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Ultra-high-performance lamp. An ultra-high-performance lamp, often known by the Philips trademark UHP, is a high-pressure mercury arc lamp. [1] These were originally known as ultra-high-pressure lamps, [2] [3] because the internal pressure can rise to as much as 200 atmospheres when the lamp reaches its operating temperature.
Ultra-high performance (UHP) HID lamps are used in LCD or DLP projection TV sets or projection displays as well. HID lamps have made indoor gardening practical, particularly for plants that require high levels of direct sunlight in their natural habitat; HID lamps, specifically metal-halide and high-pressure sodium, are a common light source ...
Slide projectors (2" × 2"; 5 cm x 5 cm) 35mm filmstrip projectors; Overhead presentation projectors (all models) Stereo cameras and stereo slide projectors through its TDC subsidiary; Slide Cube Projector, circa 1970; In 1934, Bell & Howell introduced their first amateur 8mm movie projector, in 1935 the Filmo Straight Eight camera, and in 1936 ...
Decades before the video revolution of the late 1970s/early 1980s, there was a small but devoted market for home films in the 16 mm, 9,5 mm, 8 mm, and Super 8 mm film market. Because most individuals in the United States owning projectors did not have one equipped with sound, vintage silent films were particularly well-suited for the market.
Lamps Plus, Inc. is a privately held corporation that designs, manufactures, and sells portable lighting, fixture lighting, furniture, home décor items and a variety of other related products. Its worldwide headquarters is located in the Chatsworth district of the San Fernando Valley region of the city of Los Angeles, California .
Arc lamps were superseded by filament lamps in most roles, remaining in only certain niche applications such as cinema projection, spotlights, and searchlights. In the 1950s and 1960s the high-power D.C. for the carbon-arc lamp of an outdoor drive-in projector would typically be supplied by a motor-generator combo (AC motor powering a DC ...