Invention Grant
US07656371B2 Light emitting apparatus, LED lighting, LED light emitting apparatus, and control method of light emitting apparatus
有权
发光装置，LED照明，LED发光装置以及发光装置的控制方法
- Patent Title: Light emitting apparatus, LED lighting, LED light emitting apparatus, and control method of light emitting apparatus
- Patent Title (中): 发光装置，LED照明，LED发光装置以及发光装置的控制方法
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Application No.: US10566216Application Date: 2004-07-26
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Publication No.: US07656371B2Publication Date: 2010-02-02
- Inventor: Yoshinori Shimizu , Ryuhei Tsuji , Tomoaki Inuzuka , Masayuki Taru , Katsunori Mitani , Harumi Sakuragi , Yasuhiro Kunisaki
- Applicant: Yoshinori Shimizu , Ryuhei Tsuji , Tomoaki Inuzuka , Masayuki Taru , Katsunori Mitani , Harumi Sakuragi , Yasuhiro Kunisaki
- Applicant Address: JP Anan-Shi
- Assignee: Nichia Corporation
- Current Assignee: Nichia Corporation
- Current Assignee Address: JP Anan-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2003-280679 20030728
- International Application: PCT/JP2004/010623 WO 20040726
- International Announcement: WO2005/011006 WO 20050203
- Main IPC: G09G3/32
- IPC: G09G3/32
Abstract:
A light emitting apparatus comprises at least two light emitting elements with different chromaticities; and a light emitting element controller that controls light emitted from the light emitting apparatus so as to be a desired chromaticity. The light emitting element controller controls the light emitting elements based on a predetermined function of light emitting element temperature variation. Accordingly, it is possible to provide a light emitting apparatus that, even if the temperature varies, has a stable desired chromaticity without chromaticity variation. In addition, since control is performed based on a property function of wavelength fluctuation due to light emitting element temperature variation, it is possible to provide more reliable reproduction characteristics, and a desired chromaticity.
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