Luminaire

• US 5,301,090 A
• Filed: 03/16/1992
• Issued: 04/05/1994
• Est. Priority Date: 03/16/1992
• Status: Expired due to Term

• Current Assignee: Aharon Zeev Hed
• Original Assignee: Aharon Z. Hed
• Inventors: Hed, Aharon Z.
• Primary Examiner(s): Cole, Richard R.
• Application Number:
  US07/851,620
• Time in Patent Office: 750 Days
• Field of Search: 362/1, 362/2, 362/32, 362/231, 362/96, 362/320, 362/101, 362/294, 362/373
• US Class Current: 362/558
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 6/001 the light being emitted along at least a portion of the lateral surface of the fibre

Abstract

A luminaire which has in its housing a multiplicity of groups of light emitters of different colors or pluralities of optical waveguides constructed to emit light progressively along the lengths thereof and a diffuser at which the colors can be mixed and from which the light emerges. The emitters can be controlled at the housing or light can be delivered to the optical waveguides by optical fibers from remote light sources.

Claims

1. A luminaire, comprising:

a housing;

a light-transmissive diffuser extending across said housing for diffusing light impinging upon said diffuser from within said housing;

a multiplicity of spaced apart elongated light guides in said housing emitting light continuously over respective lengths thereof, each of said light guides being cladded optical fiber having a cladding removed over a portion of a periphery thereof and for the entire respective length of light emission therefrom; and

means at an end of said housing or injecting light into corresponding ends of said light guides.

2. The luminaire defined in claim 1 wherein said light guides are grouped in groups of light guides emitting light of different complementary colors, said colors mixing at said diffuser, said means at said end of said housing controllably injecting light of corresponding color into the respective light guides.

3. The luminaire defined in claim 1 wherein said housing said light guides and said diffuser are flexible allowing bending of the luminaire.

4. The luminaire defined in claim 1 wherein said light guides are disposed in a plane parallel to a specularly or diffusely reflective surface.

5. The luminaire defined in claim 4 wherein said light guides are disposed adjacent said specularly or diffusely reflective surface.

6. The luminaire defined in claim 4 wherein said light guides are spaced from said specularly or diffusely reflective surface.

7. The luminaire defined in claim 1 wherein said means at an end of said housing for injecting light into corresponding ends of said light guides includes at least one light emitter in said housing assigned to each light guide.

8. The luminaire defined in claim 7, further comprising means for cooling said end of said housing.

9. The luminaire defined in claim 1 wherein said means at an end of said housing for injecting light into corresponding ends of said light guides includes at least one light source remote from said housing and fiber optics optically connecting said source with said light guides.

10. The luminaire defined in claim 9 wherein said light source includes respective sources of light of different colors to be mixed at said diffuser and delivered to respective light guides by said fiber optics.

11. The luminaire defined in claim 9 wherein said housing is water-tight and the luminaire is water immersible.

12. The luminaire defined in claim 9 wherein said luminaire is one of a plurality of luminaires connected to a common light source by said fiber optics.

13. The luminaire defined in claim 11 wherein said diffuser forms a wall of a bathing facility.

14. The luminaire defined in claim 1, further comprising a light source connected to each of said light guides and selected from the group which consists of LEDs, laser diodes, gas discharge and HID sources.

15. The luminaire defined in claim 1 wherein at least one of said light guides is provided with at least one optical element forming collection optics.

16. A luminaire, comprising:

an inflatable and deflatable housing;

a light-transmissive diffuser extending across said housing for diffusing light impinging upon said diffuser from within said housing;

a multiplicity of elongated light guides in said housing emitting light over respective lengths thereof;

means at an end of said housing for injecting light into corresponding ends of said light guides; and

means for introducing a gas into and removing a gas from said housing.