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US 8,283,844 B2Granted
Lighting device
AssigneeLG Electronics Inc.
InventorsHankyu Cho, Daehyuk Lee, Sanghyun Park
Life of this patent
Estimating the term…
Abstract
A lighting device is disclosed herein. In the lighting device, a plurality of the light emitting elements may be provided based on a desired amount of light. The lighting device may include a reflector provided over the light emitting elements and a lens provided over the reflector. The reflector may be configured to reflect light emitted from the light emitting elements to reduce light loss and to improve light distribution efficiency in the lighting device.
Claims20
A lighting device comprising:
- an LED module configured to emit light;
- a housing to house the LED module;
- a reflector positioned over the LED module;
- and
- a lens positioned over the reflector and configured to direct light in a first direction, the lens including an inclined surface at a first angle relative to the first direction, wherein
- the reflector includes a first reflecting surface and a second reflecting surface, the first reflecting surface being inclined at the first angle and the second reflecting surface being inclined at a second angle that is greater than the first angle relative to the first direction, and wherein the second reflecting surface of the reflector is adjacent to the lens.
3 more elements
A lighting device comprising:
- a light emitting module having one or more light emitting elements mounted thereon;
- a heat sink including a recessed portion, wherein the light emitting module is provided in the recessed portion;
- a lens including a collecting lens that protrudes toward the light emitting module and a planar surface that extends radially outward around a circumference of the lens;
- a reflector provided over the light emitting module and positioned between the light emitting module and the lens, wherein a surface of the reflector is shaped to correspond to a shape of the collecting lens and the planar surface and positioned a prescribed distance from the collecting lens, the reflector having a recess that corresponds to the planar surface of the lens;
- and
- a cover-ring provided over the lens to couple the lens and the reflector to the heat sink.
3 more elements
A lighting device comprising:
- an LED module configured to emit light;
- a housing to house the LED module;
- a reflector positioned over the LED module;
- and
- a lens positioned over the reflector and configured to direct light in a first direction, the lens including a condensing lens having an inclined surface at a first angle relative to the first direction,
- wherein the reflector includes a first reflecting surface and a second reflecting surface, the first reflecting surface being inclined at the first angle and the second reflecting surface being inclined at a second angle that is greater than the first angle relative to the first direction, and
- wherein the lens includes a flange provided around a circumference of the condensing lens and having a recess formed on the flange, the recess configured to receive the second reflecting surface of the reflector such that the second reflecting surface makes contact with a surface inside the recess of the lens.
4 more elements
Dependencies are inferred from the claim text.