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US 6,554,463 B2Granted
Optical waveguide concentrator and illuminating device
AssigneeAdDent, Inc.
InventorsBrian Hooker, Joshua Friedman
Life of this patent
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AssigneeAdDent, Inc.
InventorsBrian Hooker, Joshua Friedman
Estimating the term…
An optical waveguide concentrator and photocuring device with the optical waveguide concentrator having at least one solid optically transparent member for combining the output radiant energy from a plurality of optoelectronic light emitting devices mounted in a circular array facing the solid optically transparent member with the optically transparent member having an input surface, an output surface and a sloping surface intersecting the input and output surface to form an acute angle and with with each optoelectronic light emitting device having an optical axis directed parallel to or inclined relative to the longitudinal axis of the concentrator. The geometry of the solid optically transparent member may be conical or hyperbolic with the sloping surface tapered to form a tapered angle of between 5° and 15°.
An optical waveguide concentrator for combining the output radiant energy from a plurality of optoelectronic light emitting devices with minimal loss of radiant energy to the surrounding atmosphere comprising at least one solid optically transparent member having an input surface, an output surface, a sloping surface intersecting the input and output surfaces to form an acute angle, an inclined surface extending from the input surface and intersecting the sloping surface to form an acute angle to the longitudinal axis of the concentrator, with said plurality of optoelectronic light emitting devices mounted in a substantially circular array such that some or all of the light emitting devices face said inclined surface with the remainder facing said input surface and with some of said optoelectronic light emitting devices having an optical axis directed parallel to or inclined to the longitudinal axis of the concentrator.
An illuminating device comprising a housing having a longitudinal axis, a waveguide concentrator having at least one solid optically transparent member with a longitudinal axis concentric to the longitudinal axis of the housing and having, in cross section, a sloping surface having a tapered angle of between 5° and 15° with respect to the longitudinal axis of the solid optically transparent member, an input and an output surface intersecting the sloping surface and lying substantially transverse to said longitudinal axis, an array of optoelectronic light emitting devices mounted around said solid optically transparent member with each optoelectronic light emitting device having an optical axis parallel to or inclined relative to said longitudinal axis and a source of power for said array of optoelectronic light emitting devices.
An optical waveguide concentrator for combining the output radiant energy from a plurality of optoelectronic light emitting devices each of which emit a beam of light with a divergence of less than about 15 degrees with minimal loss of radiant energy to the surrounding atmosphere comprising at least one solid optically transparent member the external geometry of which forms an hyperboloid having an input surface, an output surface and a sloping surface intersecting the input and output surfaces to form an acute angle of between 5° and 15° with respect to a plane parallel to the longitudinal axis of the concentrator with said plurality of optoelectronic light emitting devices mounted in a substantially circular array facing said input surface and with some of said optoelectronic light emitting devices having an optical axis directed parallel to or inclined to the longitudinal axis of the concentrator.
Dependencies are inferred from the claim text.