Lighting apparatus
AssigneeLG Innotek Co., Ltd.
InventorsJin Gyeong Park, Won Jin Kim, In Jae Lee
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Abstract
A lighting apparatus which is improved in terms of a light distribution property and a performance of radiating heat includes: a light source which generates laser light; a light conversion unit which is disposed in a direction that the laser light is emitted, and includes a phosphor layer that generates a converted light which is excited by the laser light; and a housing which covers a side surface of the phosphor layer, and is disposed on a light emitting surface of the light conversion unit, wherein the housing includes an opening which exposes a first surface of the phosphor layer, and a plurality of slits.
Claims20
A lighting apparatus comprising:
- a light source which generates laser light;
- a light conversion unit which is disposed in a direction that the laser light is emitted, and includes a phosphor layer that generates a converted light which is excited by the laser light;
- and
- a housing which covers a side surface of the phosphor layer, and is disposed on a light emitting surface of the light conversion unit,
- wherein the housing includes an opening which exposes a first surface of the phosphor layer, and a plurality of slits, and
- wherein the light conversion unit includes:
- a substrate;
- an antireflection coating which is coated on a back side of the substrate;
- a short wavelength filter which is disposed on a front surface of the substrate;
- and
- the phosphor layer which is disposed on a front surface of the short wavelength filter.
Dependencies are inferred from the claim text.