Glare-free lighting fixture
First Claim
1. ARTICLE OF MANUFACTURE FOR USE WITH A LIGHT SOURCE, COMPRISING A MULTIPLICITY OF LIGHT-REFRACTING ELEMENTS, INCLUDING THREE SOLID ELEMENTS LOCATED SEQUENTIALLY WITH RESPECT TO THE SOURCE, THE FIRST ELEMENT BEING CLOSEST THEETO, THE THIRD BEING FURTHEST THEREFROM, AND THE SECOND BEING INTERMEDIATELY LOCATED AND HAVING ITS OPPOSITE SURFACES JUXTAPOSED TO ADJACENT SURFACES OF THE OTHER TWO ELEMENTS, THE ADJACENT SURFACES OF THE FIRST AND INTERMEDIATE ELEMENTS BEING CHARACTERIZED BY RESPECTIVE INTERENGAGING PROTRUDING AND INTRUDING SURFACE PORTIONS IN ESSENTIALLY MATING ENGAGEMENT WITH ONE ANOTHER THROUGHOUT, THERE BEING AN INTERFACE PAIR DEFINED BY EACH TWO JUXTAPOSED ELEMENT SURFACES SUCH THAT ESSENTIALLY ALL LIGHT INCIDENT UPON THE INTERIOR SURFACE OF EITHER ADJACENT ELEMENT AT AN ANGLE WITH RESPECT TO A PERPENDICULAR THERETO LESS THAN THE CRITICAL ANGLE THEREIN IS TRANSMITTED ESSENTIALLY UNAFFECTED ACROSS THE INTERFACE PAIR AND INTO THE OTHER ADJACENT ELEMENT, AND ESSENTIALLY ALL LIGHT INCIDENT THEREON AT AN ANGLE GREATER THAN THE CRITICAL ANGLE IS REFLECTED BACK INTO THE INTERIOR.
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Accused Products
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Citations
1 Claim
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1. ARTICLE OF MANUFACTURE FOR USE WITH A LIGHT SOURCE, COMPRISING A MULTIPLICITY OF LIGHT-REFRACTING ELEMENTS, INCLUDING THREE SOLID ELEMENTS LOCATED SEQUENTIALLY WITH RESPECT TO THE SOURCE, THE FIRST ELEMENT BEING CLOSEST THEETO, THE THIRD BEING FURTHEST THEREFROM, AND THE SECOND BEING INTERMEDIATELY LOCATED AND HAVING ITS OPPOSITE SURFACES JUXTAPOSED TO ADJACENT SURFACES OF THE OTHER TWO ELEMENTS, THE ADJACENT SURFACES OF THE FIRST AND INTERMEDIATE ELEMENTS BEING CHARACTERIZED BY RESPECTIVE INTERENGAGING PROTRUDING AND INTRUDING SURFACE PORTIONS IN ESSENTIALLY MATING ENGAGEMENT WITH ONE ANOTHER THROUGHOUT, THERE BEING AN INTERFACE PAIR DEFINED BY EACH TWO JUXTAPOSED ELEMENT SURFACES SUCH THAT ESSENTIALLY ALL LIGHT INCIDENT UPON THE INTERIOR SURFACE OF EITHER ADJACENT ELEMENT AT AN ANGLE WITH RESPECT TO A PERPENDICULAR THERETO LESS THAN THE CRITICAL ANGLE THEREIN IS TRANSMITTED ESSENTIALLY UNAFFECTED ACROSS THE INTERFACE PAIR AND INTO THE OTHER ADJACENT ELEMENT, AND ESSENTIALLY ALL LIGHT INCIDENT THEREON AT AN ANGLE GREATER THAN THE CRITICAL ANGLE IS REFLECTED BACK INTO THE INTERIOR.
Specification
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Current AssigneeMichael J. Ceglia
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Original AssigneeMichael J. Ceglia
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InventorsCeglia, Michael J.
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Application NumberUS04/257,387Time in Patent Office1,093 DaysField of SearchUS Class Current362/330CPC Class CodesF21V 5/00 Refractors for light source...
