发明申请
- 专利标题： LED LIGHTING DEVICE AND LED LUMINAIRE
- 专利标题（中）： LED照明设备和LED路灯
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申请号： US13884941申请日： 2011-11-08
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公开(公告)号： US20130293134A1公开(公告)日： 2013-11-07
- 发明人: Toru Ishikita , Toshihiko Sasai , Masahiko Kamata , Hiromichi Nakajima , Naoko Iwai , Sayaka Tomiyama
- 申请人： Toru Ishikita , Toshihiko Sasai , Masahiko Kamata , Hiromichi Nakajima , Naoko Iwai , Sayaka Tomiyama
- 申请人地址： JP Yokosuka-shi
- 专利权人： TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
- 当前专利权人： TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
- 当前专利权人地址： JP Yokosuka-shi
- 优先权： JP2010-254325 20101112; JP2011-090531 20110414
- 国际申请： PCT/JP2011/075713 WO 20111108
- 主分类号： H05B33/08
- IPC分类号： H05B33/08
摘要：
An LED lighting device includes a plurality of kinds of LEDs 1 and 2 having different color temperatures, an LED lighting circuit 3 configured to light each of the plurality of kinds of LEDs, and a control unit 4 configured to control an LED lighting circuit to simultaneously dimmably light the plurality of kinds of LEDs, subject the plurality of kinds of LEDs to dimming control through pulse width control in a deep dimming region where a dimming degree is equal to or lower than 20%, and subject the plurality of kinds of LEDs to the dimming control through amplitude control in other dimming regions.