DISCHARGE LAMP LIGHTING DEVICE
PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device that can prevent occurrence of crack in a seal portion of an arc tube and occurrence of fracture of metal foil when supply power is increased in a full lighting mode.SOLUTION: A discharge lamp lighting device has a long arc type disch...
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| creator | TORIKAI TETSUYA |
| description | PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device that can prevent occurrence of crack in a seal portion of an arc tube and occurrence of fracture of metal foil when supply power is increased in a full lighting mode.SOLUTION: A discharge lamp lighting device has a long arc type discharge lamp 10 having an arc tube in which a seal portion having a foil seal structure is formed at both ends of a light emitting portion, and a power supply device 20 for supplying power to the discharge lamp. The discharge lamp is turned on while a full-lighting mode and a standby-lighting mode for supplying smaller power than supply power in the full-lighting mode are switched to each other by the power supply device, and the supply power of the full-lighting mode is subjected to constant illuminance control. When the supply power of the full-lighting mode increases, the supply power of the standby-lighting mode is controlled to increase in connection with the increase of the supply power of the full-lighting mode. |
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The discharge lamp is turned on while a full-lighting mode and a standby-lighting mode for supplying smaller power than supply power in the full-lighting mode are switched to each other by the power supply device, and the supply power of the full-lighting mode is subjected to constant illuminance control. 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The discharge lamp is turned on while a full-lighting mode and a standby-lighting mode for supplying smaller power than supply power in the full-lighting mode are switched to each other by the power supply device, and the supply power of the full-lighting mode is subjected to constant illuminance control. 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The discharge lamp is turned on while a full-lighting mode and a standby-lighting mode for supplying smaller power than supply power in the full-lighting mode are switched to each other by the power supply device, and the supply power of the full-lighting mode is subjected to constant illuminance control. When the supply power of the full-lighting mode increases, the supply power of the standby-lighting mode is controlled to increase in connection with the increase of the supply power of the full-lighting mode.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS SEMICONDUCTOR DEVICES |
| title | DISCHARGE LAMP LIGHTING DEVICE |
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