Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-07-26
2010-02-02
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S690000, C315S309000, C315S169300
Reexamination Certificate
active
07656371
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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Sheu et al., “White-Light Emission From Near UV InGaN-GaN LED Chip Precoated With Blue/Green/Red Phosphors”, IEEE Photonics Technology Letters, vol. 15, No. 1, Jan. 2003.
Inuzuka Tomoaki
Kunisaki Yasuhiro
Mitani Katsunori
Sakuragi Harumi
Shimizu Yoshinori
Awad Amr
Birch & Stewart Kolasch & Birch, LLP
Cerullo Liliana
Nichia Corporation
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