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Luminaire device

  • US 6,671,452 B2
  • Filed: 11/27/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 03/23/1992
  • Status: Expired due to Fees
First Claim
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1. An optical device for collecting light from a light source and outputting the light from the optical device, comprising:

  • a wedge-shaped layer of optical index of refraction n1 with a first and second surface converging to define at least one angle of inclination, Φ

    , the light exiting said base layer when the light being reflected therein decreases its angle relative to the normal to at least one of said first and second surfaces and achieves an angle of incidence less than a critical angle θ

    c relative to a normal to said surfaces; and

    a first layer of index of refraction n2 wherein said first layer is laminated to said wedge-shaped layer and has an optical index of refraction such that an effective optical dielectric interface is formed between said wedge layer and said laminated first layer and said interface has a higher critical angle θ

    c than another critical angle θ

    a characteristic of an ambient interface with said wedge-shaped layer to enable the light to enter said laminated first layer after output from said wedge-shaped layer when the light in said wedge-shaped layer achieves the angle of incidence less than the critical angle θ

    c characteristic of the effective optical interface.

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