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US 2014/0369065 A1Published application
Illumination device and vehicle headlight
AssigneeSharp Kabushiki Kaisha
InventorsKensei TOYOTA, Hiroshi KIJIMA, Koji TAKAHASHI
Life of this patent
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Abstract
In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.
Claims6
1-11. (canceled)
An illumination device, comprising:
- an optical fiber which guides emission light emitted from a light source;
- a light guide member provided so as to face an emitting end part, where the emission light is emitted, of the optical fiber, the light guide member having a receiving end part where the emission light emitted from the emitting end part of the optical fiber is received;
- and
- a light conversion section provided so as to face an emitting end part, where the emission light is emitted, of the light guide member, the light conversion section converting the emission light emitted from the emitting end part of the light guide member to illumination light,
- the light guide member guiding the emission light by means of total reflection occurring due to a difference in refractive index between (i) a material which constitutes the light guide member and (ii) surrounding environment.
2 more elements
Dependencies are inferred from the claim text.