Led flashlight with lens
AssigneeGELcore, LLC
InventorsMathew L. Sommers, James T. Petroski, Greg E. Burkholder
Life of this patent
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Abstract
A flashlight includes a housing, an electrical power source in the housing, a semiconductor light source, a reflector well in which the semiconductor light source is seated, and a lens over the reflector. The housing has a closed end and an open end. The semiconductor light source is electrically connected to the power source. The semiconductor light source, reflector, and lens are secured to the housing. Light produced by the semiconductor light source is reflected by the reflector and focussed by the lens in a predetermined direction.
Claims17
A light emitting device, comprising:
- a plurality of light emitting diodes;
- an individual reflector well corresponding to each light emitting diode, in which the light emitting diode is seated;
- and
- an individual lens corresponding to each light emitting diode, the lens arranged over an opening of the reflector, light produced by each of the plurality of light emitting diodes being reflected by the reflector and focussed by the lens toward a target area.
A flashlight, comprising:
- a housing having a closed end and an open end;
- an electrical power source in the housing;
- a plurality of semiconductor light sources each electrically connected to the power source;
- a plurality of reflector wells in which the semiconductor light sources are seated;
- and
- a plurality of lenses over the reflectors, the semiconductor light source, reflector, and lens being secured to the housing, light produced by each semiconductor light source being reflected by the reflector and focussed by the lens in a predetermined direction toward a selected target area such that light from the plurality of semiconductor light sources combine to illuminate the target area.
A method of manufacturing a light emitting device, comprising:
- seating a plurality of light emitting diodes in corresponding reflectors;
- securing a lens over each reflector;
- and
- adjusting each reflector and lens such that light produced by the corresponding light emitting diode is reflected by the reflector and focussed by the lens toward a target area, wherein light produced by the plurality of light emitting diodes combine at the target area to produce a generally uniform, bright beam pattern at the target area.
An LED-based flashlight including:
- a housing having a closed end adapted to retain a power supply, and an open end opposite the closed end;
- and
- a plurality of light sources arranged at the open end of the housing, each light source including:
- a light emitting diode (LED) arranged to receive electrical power from the power supply,
- a reflector well inside which the LED is seated, the reflector well having an open end, and
- a lens arranged over the open end of the reflector well and cooperating with the reflector well to direct light produced by the LED away from the housing along a predefined direction,
- wherein light produced by the plurality of light sources and directed along the predefined directions converge at a target area to produce a substantially uniform beam pattern at the target area.
Dependencies are inferred from the claim text.