Multi colours device illumination

Abstract

A portable device having within it a multicolour illumination arrangement comprising: a surface; a plurality of light sources, at least one of the plurality of light sources being capable of generating two or more emission colours; and drive means for causing the emission colour of the at least one light source to vary; whereby the illumination arrangement can produce a varying illumination through at least part of the surface.

What is claimed is: 
     
         1 . A portable device including a multicolor illumination arrangement comprising:
 a rotatable control member;   a plurality of light sources arranged around the rotatable control member, each light source capable of generating multiple emission colors; and   a driver for causing the emission color of the light sources to vary based on position of the rotatable control member for aiding a user in determining current orientation of the rotatable control member.   
     
     
         2 . The portable device of  claim 1 , wherein the rotatable control member is a rotator wheel. 
     
     
         3 . The portable device of  claim 2 , wherein the rotatable control member includes a marker indicating the current position of the rotatable control member. 
     
     
         4 . The portable device of  claim 3 , wherein when the marker is placed on one light source selected from of the plurality of light sources, the one light source emits a green color. 
     
     
         5 . The portable device of  claim 1 , wherein the rotatable control member includes a marker indicating current position of the rotatable control member. 
     
     
         6 . A method for producing varying illumination of a portable device, the device comprising a rotatable control member and a plurality of light sources arranged around the rotatable control member, the plurality of light sources each capable of generating multiple emission colors, the method comprising driving the plurality of light sources, such that each light source emits a different color in response to the position of the rotatable control member, for aiding a user in determining the current orientation of the rotatable control member. 
     
     
         7 . The method of  claim 6  further comprising the step of indicating the current position of the rotatable control member using a marker. 
     
     
         8 . The method of  claim 7  further comprising the step of placing the marker on one light source selected from the plurality of light sources. 
     
     
         9 . The method of  claim 8  further comprising causing the one light source to emit a green color based on the step of placing the marker on the one light source.