LED Flashlight
AssigneeMag Instrument, Inc.
InventorsAnthony Maglica, Stacey H. West, John K. O'Farrell
Life of this patent
Estimating the term…
Abstract
A lighting device with improved optical performance and efficiency is provided. The lighting device includes a source of energy, a light source, a reflector and a holder. The reflector has a first open end, a second end, and a parabolic profile extending between the first open end and second end. The focus of the parabolic profile is located outside of the profile. The reflector may also be movable relative to the light source. The lighting device may include a circuit that delivers a pulsed or thermally compensated pulsed current to the light source. The light device may also include a heat sink housing.
Claims21
A lighting device comprising:
- a source of energy;
- a light source coupled to said source of energy;
- a reflector that reflects light including a first open end, a second end, and a parabolic profile extending between said first open end and said second end, wherein the focus of said parabolic profile is located outside said parabolic profile;
- a holder that holds said light source relative to said reflector such that light generated by said light source is reflected by said reflector.
A flashlight comprising:
- a portable source of energy;
- an LED lamp that substantially radiates light spherically over an angle less than 180° coupled to the portable source of energy;
- and
- a parabolic reflector that reflects light radiated by said LED lamp, said reflector including a first open end, a second open end and an axis extending between said ends, wherein the focus of said parabolic reflector is not located between said first open end and said second open end, wherein the focal length is between 0.020-0.050 inch.
A flashlight comprising:
- a portable source of power;
- a light source coupled to said portable source of power including an LED and a lens, wherein said lens is arranged over the LED such that light substantially radiates from said light source at an angle less than 180° relative to the LED position;
- and
- a movable parabola shaped reflector for reflecting light radiating from said light source including a first open end, a second open end, and a parabolic profile extending between the first open end and the second open end, wherein the focus of the parabola is located outside the parabolic profile.
21-55. (canceled)
Dependencies are inferred from the claim text.