Illumination apparatus and illumination system
First Claim
1. An illumination apparatus, comprising:
- a case having an opening portion;
a light source disposed in the case, the light source including a plurality of light-emitting elements;
a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and
a controller that controls light emission from the light source,wherein the controller;
controls light emission from the plurality of light-emitting elements to project an image simulating a sky on the light diffuser, the image changing with time; and
when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range.
1 Assignment
0 Petitions
Accused Products
Abstract
An illumination apparatus includes: a case having an opening portion; a light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the light source. The controller: controls light emission from the plurality of light-emitting elements to project an image on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range.
64 Citations
20 Claims
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1. An illumination apparatus, comprising:
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a case having an opening portion; a light source disposed in the case, the light source including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the light source, wherein the controller; controls light emission from the plurality of light-emitting elements to project an image simulating a sky on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An illumination apparatus, comprising:
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a case having an opening portion; a light source disposed in the case, the light source including a plurality of light-emitting elements and a plurality of light-emitting sources different from the plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the plurality of light-emitting elements and light emission from the plurality of light-emitting sources, wherein the controller; controls the light emission from the plurality of light-emitting elements to project an image simulating a sky on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements, controls the light emission from the plurality of light-emitting sources to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range. - View Dependent Claims (12, 13, 14)
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15. An illumination apparatus, comprising:
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a case having an opening portion; a light source disposed in the case, the light source including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the light source, wherein the controller; controls light emission from the plurality of light-emitting elements to project an image simulating a sky on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in an amount of light exiting from the light diffuser of the illumination apparatus within a predetermined range during a unit time. - View Dependent Claims (16, 17, 18, 19)
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20. An illumination apparatus, comprising:
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a case having an opening portion; a first light source including a plurality of light-emitting elements disposed in the case; a second light source different from the first light source and disposed outside the case; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the first light source and light emission from the second light source, wherein the controller; controls light emission from the plurality of light-emitting elements to project an image simulating a sky on the light diffuser, the image changing with time; and when changing the image, controls the light emission from at least one of the first light source and the second light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range.
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Specification