Lighting apparatus for a gaming machine cabinet

Abstract

A lighting apparatus for a gaming machine cabinet comprising: a spot light source which emits light relative to a central emission axis; and a translucent diffuser spaced from the spot light source, the diffuser comprising an inner portion located so as to intercept light emitted along the emission axis and an outer portion spaced from the emission axis, the inner and outer portions arranged such that the diffuser prevents transmission of more light in the region of the inner portion than in the region of the outer portion.

1 . A translucent diffuser for an electronic gaming machine for diffusing light from a spot light source, the diffuser comprising an inner portion adapted to be located so as to intercept light emitted along an emission axis by the light source and an outer portion spaced from the emission axis, the inner and outer portions arranged such that, in use, the diffuser prevents transmission of more light in the region of the inner portion than in the region of the outer portion. 
     
     
         2 . A translucent diffuser as claimed in  claim 1 , wherein the inner and outer portions are made of the same material. 
     
     
         3 . A translucent diffuser as claimed in  claim 1 , wherein the inner portion is circular and the outer portion comprises a plurality of arms extending from the inner portion. 
     
     
         4 . A translucent diffuser as claimed in  claim 3 , wherein each of the arms tapers such that the diffuser is star shaped. 
     
     
         5 . A translucent diffuser as claimed in  claim 3 , wherein there are 8 to 16 arms. 
     
     
         6 . A translucent diffuser as claimed in  claim 3 , wherein there are 10 to 14 arms. 
     
     
         7 . A translucent diffuser as claimed in  claim 3 , wherein there are 12 arms. 
     
     
         8 . A translucent diffuser as claimed in  claim 1 , wherein the diffuser is mounted on a translucent support member. 
     
     
         9 . A translucent diffuser as claimed in  claim 1 , wherein the diffuser is spaced from the light source by a distance in the range of 10-20 mm. 
     
     
         10 . A translucent diffuser as claimed in  claim 12 , wherein the distance is about 15 mm. 
     
     
         11 . A translucent diffuser for an electronic gaming machine for diffusing light emitted by a light source in a brightness pattern, the diffuser being substantially planar and formed to transmit incident light from the light source proportionally to the inverse of the brightness pattern, whereby the light output by the lighting apparatus is substantially uniform in the region of the diffuser. 
     
     
         12 . A translucent diffuser as claimed in  claim 11 , wherein the shape of the diffuser is configured to control transmittal of the incident light. 
     
     
         13 . A translucent diffuser as claimed in  claim 12 , wherein the diffuser has a circular inner portion and an outer portion comprising a plurality of arms extending from the inner portion. 
     
     
         14 . A translucent diffuser as claimed in  claim 13 , wherein each of the arms tapers such that the diffuser is star shaped. 
     
     
         15 . A translucent diffuser as claimed in  claim 13 , wherein there are 8 to 16 arms. 
     
     
         16 . A translucent diffuser as claimed in  claim 13 , wherein there are 10 to 14 arms. 
     
     
         17 . A translucent diffuser as claimed in  claim 13 , wherein there are 12 arms. 
     
     
         18 . A translucent diffuser as claimed in  claim 11 , wherein the diffuser is mounted on a translucent support member. 
     
     
         19 . A translucent diffuser as claimed in  claim 11 , wherein the diffuser is spaced from the light source by a distance in the range of 10-20 mm. 
     
     
         20 . A translucent diffuser as claimed in  claim 19 , wherein the distance is about 15 mm.