Lighting systems for producing different beam patterns
OwnerWilliam Cassarly, Thomas Houghinventors
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Abstract
Various embodiments described herein include lighting systems that produce an optical beam. Moreover, in various embodiments, the beam may be altered to provide, for example, a narrow beam or a wide beam. One such lighting system includes a light source, a diffusing optical element, and a projection lens. The diffusing optical element is disposed between the light source and the projection lens and can be translated to provide zoom capability.
Claims113
A lighting system for providing lighting, said lighting system configured to produce a variable beam pattern, said lighting system comprising:
- a light source;
- a diffusing optical element;
- and
- projection optics, said diffusing optical element disposed in an optical path between said light source and said projection optics, said projection optics projecting a beam having said beam pattern,
- wherein said diffusing optical element is movable along said optical path thereby altering said beam pattern.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a collector disposed with respect to said light source to substantially concentrate light at a focus;
- projection optics configured to project a beam having said beam pattern;
- and
- a diffusing optical element disposed in an optical path between said light source and said projection optics at a distance from said focus.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a diffusing optical element;
- and
- projection optics, said diffusing optical element disposed in an optical path between said light source and said projection optics,
- wherein said projection optics is configured to project a beam having said beam pattern and said projection optics is fixed with respect to said light source.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a diffusing optical element configured to distribute light into a range of angles;
- and
- projection optics, said diffusing optical element disposed in an optical path between said light source and said projection optics, said projection optics being configured to project a beam having said beam pattern,
- wherein the diffusing optical element has a profile that determines the range of angles into which light is distributed at different locations across said diffusing optical element, said profile being configured such that the range of angles is different for different locations on said diffusing optical element.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- an optical element having an optical aperture therein, said optical element having an optical property that is absent in said aperture;
- and
- projection optics, said projection optics being configured to project a beam having said beam pattern, said optical element disposed in an optical path between said light source and said projection optics.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a diffusing optical element;
- projection optics, said projection optics configured to project a beam having said beam pattern, said diffusing optical element disposed in an optical path between said light source and said projection optics;
- and
- a mask disposed in the optical path between said diffusing optical element and said light source.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a diffusing optical element;
- projection optics, said projection optics configured to project a beam having said beam pattern, said diffusing optical element disposed in an optical path between said light source and said projection optics,
- wherein the projection optics is diffusing.
A lighting system for providing lighting, said lighting system configured to produce a beam pattern, said lighting system comprising:
- a light source;
- a first diffusing optical element;
- projection optics, said projection optics configured to project a beam having said beam pattern, said first diffusing optical element disposed in an optical path between said light source and said projection optics;
- and
- a second diffusing optical element, said projection optics between said first and second diffusing optical elements.
An lighting system for providing lighting, said lighting system configured to produce a variable beam pattern, said lighting system comprising:
- a light source;
- projection optics, said projection optics configured to project a beam having said beam pattern, said light source and said projection optics forming an optical path;
- and
- a variable diffusing optical element disposed in said optical path, said variable diffusing optical element configured to distribute light into a range of directions defined by an angular spread, said variable diffusing optical element adjustable to vary said angular spread to alter said beam pattern.
Dependencies are inferred from the claim text.