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US 12,007,090 B2Granted
Light source unit, and light emitting device for mobile body
AssigneeIchikoh Industries, Ltd.
InventorHarumi Mochimaru
Life of this patent
Estimating the term…
Abstract
A light source unit includes: a light source part that emits excitation light; a light emitting part that emits generated light by being irradiated with the excitation light; a support part that guides the excitation light to the light emitting part while supporting the light emitting part; and a reflective part provided on a back surface of the support part, the back surface being on a side opposite to an emission direction of the generated light.
Claims36
A vehicular lamp with a lamp chamber comprising:
- a light source for emitting excitation light, the light source having a light emitting surface which emits a Lambertian distribution of said excitation light;
- a convex reflective part;
- a light emitting layer including organic material or inorganic material and for emitting generated light by being irradiated with the excitation light, and
- a lens through which the generated light travels to the outside of the lamp chamber so that the generated light is emitted from the vehicular lamp, wherein:
- the excitation light from the light source is dispersed by the convex reflective part and travels to the light emitting layer so that the light emitting layer emits the generated light and performs surface emission,
- the light emitting layer is provided on an inner surface of the lens, and
- the light emitting layer is excited by being irradiated with blue excitation light to emit red generated light and the vehicle lamp functions as a tail lamp.
4 more elements
A vehicular lamp with a lamp chamber comprising:
- a light source for emitting excitation light, the light source having a light emitting surface which emits a Lambertian distribution of said excitation light;
- a convex reflective part;
- a light emitting layer including organic material or inorganic material and for emitting generated light by being irradiated with the excitation light, and
- a lens through which the generated light travels to the outside of the lamp chamber so that the generated light is emitted from the vehicular lamp, wherein:
- the excitation light from the light source is dispersed by the convex reflective part and travels to the light emitting layer so that the light emitting layer emits the generated light and performs surface emission, and
- the light emitting layer is excited by being irradiated with blue excitation light to emit red generated light and the vehicle lamp functions as a tail lamp.
3 more elements
A vehicular lamp with a lamp chamber comprising:
- a light source for emitting excitation light, the light source having a light emitting surface which emits a Lambertian distribution of said excitation light;
- a convex reflective part;
- a light emitting layer including organic material or inorganic material and for emitting generated light by being irradiated with the excitation light, and
- a lens through which the generated light travels to the outside of the lamp chamber so that the generated light is emitted from the vehicular lamp, wherein:
- the wavelength of the excitation light is shorter than the wavelength of the generated light, and
- the excitation light from the light source is dispersed by the convex reflective part and travels to the light emitting layer so that the light emitting layer emits the generated light and performs surface emission so that the vehicular lamp functions as a lamp.
3 more elements
A vehicular lamp with a lamp chamber comprising:
- a light source for emitting excitation light, the light source having a light emitting surface which emits a Lambertian distribution of said excitation light:
- a light emitting layer including organic material or inorganic material and for emitting generated light by being irradiated with the excitation light,
- a lens through which the generated light travels to the outside of the lamp chamber so that the generated light is emitted from the vehicular lamp,
- a convex reflective part, and
- a light source part including the light source, wherein:
- the wavelength of the excitation light is shorter than the wavelength of the generated light,
- the light source is provided such that a light emitting surface of the light source faces the convex reflective part and the light source part is prevented from being visually recognized from outside of the vehicle, and
- the excitation light from the light source is dispersed by the convex reflective part and travels to the light emitting layer so that the light emitting layer emits the generated light and performs surface emission so that the vehicular lamp functions as a lamp.
5 more elements
Dependencies are inferred from the claim text.