On-camera LED fresnel lighting system including active cooling
First Claim
1. A lighting system suitable for image capture, comprising:
- a housing;
an LED engine supported in said housing capable of emitting light from said housing;
said LED engine including a fan for forcing air past said LED engine;
a Fresnel lens supported by said housing wherein at least a portion of said light emitted from said housing passes through said lens to create a beam and wherein said LED engine is movable toward or away from said Fresnel lens to vary the focus of the beam;
a control input for selectively controlling an illumination level of said emitted light;
an adapter for readily mounting said housing to, and disengaging said housing from, a camera.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.
20 Citations
24 Claims
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1. A lighting system suitable for image capture, comprising:
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a housing; an LED engine supported in said housing capable of emitting light from said housing; said LED engine including a fan for forcing air past said LED engine; a Fresnel lens supported by said housing wherein at least a portion of said light emitted from said housing passes through said lens to create a beam and wherein said LED engine is movable toward or away from said Fresnel lens to vary the focus of the beam; a control input for selectively controlling an illumination level of said emitted light; an adapter for readily mounting said housing to, and disengaging said housing from, a camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification