Illuminated picture frame

Abstract

A display apparatus comprising a frame adapted to engage and support the edges of a picture, a casing defining a cavity disposed behind the plane occupied by the picture in use of the apparatus, lighting device located in the cavity, a power source for the lighting device, wherein the lighting device comprising a linear array of light emitting diodes mounted in respective apertures in an elongate laminar support and arranged to provide backlit illumination for a picture located in the frame, the array being located in a tubular diffuser located in a light transmitting tube, the diffuser having a diameter less than the diameter of the tube, the tube being disposed axially of the casing; and wherein control circuitry and a battery compartment are enclosed by cover plates forming a channel to receive the lighting device.

1 . A display apparatus comprising a frame adapted to engage and support the edges of a picture, a casing defining a cavity disposed behind the plane occupied by the picture in use of the apparatus, lighting means located in the cavity, a power source for the lighting means, wherein
 the lighting means comprising a linear array of light emitting diodes mounted in respective apertures in an elongate laminar support and arranged to provide backlit illumination for a picture located in the frame,   the array being located in a tubular diffuser located in a light transmitting tube, the diffuser having a diameter less than the diameter of the tube, the tube being disposed axially of the casing; and wherein control circuitry and a battery compartment are enclosed by cover plates forming a channel to receive the lighting means.   
   
   
       2 . Apparatus as claimed in  claim 1 , wherein a reflector is located behind the lighting means. 
   
   
       3 . Apparatus as claimed in  claim 1 , comprising a light sensor or photosensitive detector may be arranged to interrupt the circuit during bright light conditions. 
   
   
       4 . Apparatus as claimed in  claim 1 , wherein the frame or casing includes an array of photovoltaic cells. 
   
   
       5 . (canceled)