| 简介 |
PROBLEM TO BE SOLVED : To downsize a light emitter without using a multiplex-winding coil, to improve condensing efficiency, and to prevent arc discharge from occurring between individual coil parts in lighting.SOLUTION : This lighting system 1 is provided with a reflecting mirror 3, and a tungsten halogen lamp 5 incorporated in the reflecting mirror 3 and having a rated voltage above 100 V. The tungsten halogen lamp 5 has a bulb 6 filled with a filler gas containing a rare gas comprising krypton gas, and a light emitter 17 arranged in the bulb 6. The light emitter 17 has a plurality of single-winding coil parts 21, 22, 23 and 24 arranged side by side, and its position with respect to the reflecting mirror 3 is located at a position including a focal point F1 of the reflecting mirror. The plurality of coil parts 21, 22, 23 and 24 are wound such that each outline shape thereof when the coil parts 21, 22, 23 and 24 are viewed from the longitudinal direction thereof is formed into a shape different from a nearly circular shape.COPYRIGHT : (C)2008, JPO&INPIT |
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