LIGHT EMITTING DEVICE, ILLUMINATING DEVICE, AND VEHICLE HEADLIGHT
First Claim
1. A light emitting device comprising:
- an excitation light source which generates excitation light;
a light emitting section from which light is emitted in response to the excitation light; and
a light guide irradiation member, having one end and the other end, which (i) guides the excitation light, entered via the one end, toward the other end and (ii) irradiates a predetermined light irradiation area of the light emitting section with the excitation light thus guided,the other end having a cross-sectional area which is smaller than that of the one end.
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Accused Products
Abstract
A light emitting device of the present invention includes: a laser diode group which generates a plurality of laser beams; a cylindrical light emitting element which emits incoherent light in response to the plurality of laser beams; and a light guide irradiation section which (i) guides the plurality of laser beams entered via a light incidence plane toward a light irradiation plane and (ii) irradiates the light irradiation area of the cylindrical light emitting element with the plurality of laser beams thus guided. The light irradiation plane of the light guide irradiation section has an area which is smaller than that of the light incidence plane.
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Citations
12 Claims
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1. A light emitting device comprising:
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an excitation light source which generates excitation light; a light emitting section from which light is emitted in response to the excitation light; and a light guide irradiation member, having one end and the other end, which (i) guides the excitation light, entered via the one end, toward the other end and (ii) irradiates a predetermined light irradiation area of the light emitting section with the excitation light thus guided, the other end having a cross-sectional area which is smaller than that of the one end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification