Lamp

Illumination – Edge lighted panel – Particular application

Reexamination Certificate

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Details

C362S323000, C362S327000

Reexamination Certificate

active

06991357

ABSTRACT:
A lamp, in particular a motor vehicle lamp, comprises a light distribution device (14, 14′) into which the light of at least one light source (6) is fed in such a way as to produce a light flux which is firstly propagated through the light distribution device substantially parallel to a light exit surface defined thereby. Components are deflected out of the light flux by means of coupling-out structures (16, 16′) for delivery through the light exit surface. To achieve good illumination of the light-transmitting surface the coupling-out structures are a plurality of coupling-out layers which are arranged at spacings in succession in the direction of propagation of the light flux and which comprise a medium whose optical refractive index is different from that of the medium filling the intermediate spaces between said layers, wherein the coupling-out layers are so inclined relative to the propagation direction of the light flux at a predetermined angle that its main component passes through them without a substantial change in direction while a minor part is reflected towards the light exit surface.

REFERENCES:
patent: 3532871 (1970-10-01), Shipman
patent: 5046805 (1991-09-01), Simon
patent: 6097549 (2000-08-01), Jenkins et al.
patent: 6102559 (2000-08-01), Nold et al.
patent: 6811277 (2004-11-01), Amano
patent: 6824284 (2004-11-01), Chinniah et al.
patent: 0704655 (1996-03-01), None
patent: 196 38 081 (1998-03-01), None
patent: WO 99/08042 (1999-02-01), None

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