Illuminating device
First Claim
1. An illuminating device comprising:
- a light source configured to include plural light emitters, each having a different spectral distribution;
a light source control unit configured to determine an emission intensity of each of the light emitters, and control the light emitters to have the emission intensities;
an estimation unit configured to estimate a spectral reflectivity of an object to which illuminating light is irradiated from the light source;
a first calculating unit configured to calculate a first evaluation value, indicating an adequacy of a color of the object visually perceived, based on the spectral distributions and the spectral reflectivity; and
a second calculating unit configured to calculate a second evaluation value, indicating how much an influence is given by the illuminating light to factors other than a visual sense, based on the spectral distributions,wherein the light source control unit determines the emission intensities by which the first evaluation value and the second evaluation value satisfy a restraint condition determined beforehand.
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Accused Products
Abstract
In an embodiment, an illuminating device includes a light source, a light source control unit, an estimation unit, a first calculating unit, and a second calculating unit. The light source includes light emitters, each having a different spectral distribution. The light source control unit determines an emission intensity of each of the light emitters. The estimation unit estimates a spectral reflectivity of an object. The first calculating unit calculates a first evaluation value, indicating an adequacy of a color of the object visually perceived, based on the spectral distributions and the spectral reflectivity. The second calculating unit calculates a second evaluation value, indicating how much an influence is given by the illuminating light to factors other than a visual sense. The light source control unit determines the emission intensities by which the first evaluation value and the second evaluation value satisfy a restraint condition determined beforehand.
19 Citations
8 Claims
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1. An illuminating device comprising:
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a light source configured to include plural light emitters, each having a different spectral distribution; a light source control unit configured to determine an emission intensity of each of the light emitters, and control the light emitters to have the emission intensities; an estimation unit configured to estimate a spectral reflectivity of an object to which illuminating light is irradiated from the light source; a first calculating unit configured to calculate a first evaluation value, indicating an adequacy of a color of the object visually perceived, based on the spectral distributions and the spectral reflectivity; and a second calculating unit configured to calculate a second evaluation value, indicating how much an influence is given by the illuminating light to factors other than a visual sense, based on the spectral distributions, wherein the light source control unit determines the emission intensities by which the first evaluation value and the second evaluation value satisfy a restraint condition determined beforehand. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification