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US 2013/0258689 A1Published application
Light-emitting device, floodlight, and vehicle headlight
AssigneeSharp Kabushiki Kaisha
InventorsYoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA, Tomohiro SAKAUE
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Abstract
A light-emitting device includes a light-emitting section, a lens, and a movement control section, the movement control section changing an illumination position and a spot size of a laser beam in the light-emitting section by changing a relative position of the lens with respect to the light-emitting section.
Claims20
A light-emitting device comprising:
- a light-emitting section which emits light in response to a laser beam emitted from a laser light source;
- a light control section which controls the laser beam to be guided from the laser light source to the light-emitting section;
- and
- a movement control section which causes the light control section to move,
- the movement control section changing an illumination position and a spot size of the laser beam in the light-emitting section by changing a relative position of the light control section with respect to the light-emitting section.
2 more elements
A light-emitting device comprising:
- a light-emitting section which emits light in response to laser beams emitted from a plurality of laser light sources,
- the plurality of laser light sources having respective outputs which are controlled so that the laser beams emitted from the plurality of laser light sources are shone in respective different regions on the light-emitting section.
A vehicle headlight comprising:
- a light-emitting section which emits light in response to a laser beam emitted from a laser light source;
- a light control section which controls the laser beam to be guided from the laser light source to the light-emitting section;
- and
- a movement control section which causes the light control section to move,
- the movement control section changing an illumination position and a spot size of the laser beam in the light-emitting section by changing a relative position of the light control section with respect to the light-emitting section.
2 more elements
Dependencies are inferred from the claim text.