Lamps, luminaires and lighting systems

Details Lamps, luminaires and lighting systems Lamps, luminaires and lighting systems

2006-02-07

2006-02-07

Husar, Stephen (Department: 2875)

Illumination

Light source and modifier

Laser type

C362S216000, C362S540000, C362S545000, C362S800000

Reexamination Certificate

active

06994452

ABSTRACT:
The invention relates to LED-based lamps, luminaires and lighting systems for buildings particularly, though not exclusively, for providing emergency light in the event of power failure. In particular it provides a light-emitting diode lamp comprising a support (26) and an array of light emitting diodes (58) on the support, an optical axis (72) passing through the middle of the array (58) and diodes increasing in number and increasing in inclination with distance from the optical axis (72). It also provides a luminaire (24) comprising a lamp as described above and a lens (30) having facets for generally un-deviated and un-reflected passage of light from off-axis diodes, and a building emergency lighting system comprising luminaires (24) as described above. In an alternative embodiment inclination of the light is through progressively increasing inclination of the facets.

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