Lighting device
AssigneeLG Innotek Co., Ltd.
InventorsJong Chan Park, Kyung Il Kong, Byeong Guk Min
Life of this patent
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Abstract
A lighting device may be provided that includes: a light emitting device; and an optical exciter which is disposed over the light emitting device and emits light excited by the light emitted from the light emitting device, wherein the optical exciter includes at least one of a yellow fluorescent material, a green fluorescent material and a red fluorescent material, wherein the optical exciter moves over the light emitting device, and wherein a color temperature of the light emitted from the optical exciter varies according to the movement of the optical exciter.
Claims19
A lighting device comprising:
- a light emitting device;
- an optical exciter which is disposed over the light emitting device and emits light excited by the light emitted from the light emitting device;
- a body part;
- and
- a cover,
- wherein the optical exciter includes at least one of a yellow fluorescent material, a green fluorescent material and a red fluorescent material,
- wherein the optical exciter moves over the light emitting device,
- wherein a color temperature of the light emitted from the optical exciter varies according to the movement of the optical exciter,
- wherein the body part which includes the light emitting device disposed therein radiates heat from the light emitting device and includes a coupling recess, and
- wherein the cover which includes the optical exciter disposed therein, includes a coupler coupled to the coupling recess of the body part and rotates along the coupling recess of the body part.
A lighting device comprising:
- a body part including one side;
- a light source module which is disposed on the one side of the body part and is disposed on a first axis;
- a cover which is disposed over the light source module, includes at least two holes and rotates about a second axis parallel with the first axis;
- and
- optical excitation plates which are disposed in the holes respectively and move over the light source module,
- wherein color temperatures of lights emitted from the optical excitation plates are different from each other by the movements of the optical excitation plates.
A lighting device comprising:
- a body part;
- a light emitting device disposed in the body part;
- and
- a diffusion plate disposed over the light emitting device,
- wherein the body part includes a reflective layer which is disposed within the body part and surrounds the light emitting device, and a fluorescent layer which is disposed between the reflective layer and the body part,
- wherein the fluorescent layer includes a fluorescent surface including at least one fluorescent material,
- wherein the reflective layer includes a punched hole corresponding to the fluorescent surface, and
- wherein at least one of the fluorescent surface and the reflective layer rotates, and a color temperature of light emitted from the diffusion plate varies by the movements of at least one of the fluorescent surface and the reflective layer.
Dependencies are inferred from the claim text.