发明名称 |
Lighting device and illumination fixture using the same |
摘要 |
[Object] To provide a lighting device and an illumination fixture using this, the lighting device being able to correspond to a plurality of 3D glasses each having a different shutter frequency and able to prevent the flicker from occurring in wearing of the 3D glasses. [Means for Settlement] A lighting device used in a space where a 3D glasses having a shutter for alternately shielding each transmissive surface of a pair of lenses at any one shutter frequency of plural types of shutter frequencies, includes: a step-down chopper circuit 3 for outputting a direct current I1 to a light source 6; and a control part 4 for turning on and off supply of the direct current I1 to the light source 6 at a predetermined PWM frequency, wherein the PWM frequency is an integral multiple of the least common multiple of the plural types of shutter frequencies. |
申请公布号 |
EP2445316(A1) |
申请公布日期 |
2012.04.25 |
申请号 |
EP20110184908 |
申请日期 |
2011.10.12 |
申请人 |
PANASONIC CORPORATION |
发明人 |
ESAKI, SANA;HIRAMATSU, AKINORI |
分类号 |
H05B33/08;H01J61/90;H04N13/04 |
主分类号 |
H05B33/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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