Patent ID: 9677740
Date: 2017-06-13
CPC Classifications: F21V,F21Y,H01H,H03K,Y10T

Claim:
1. An electronic device, comprising: a button comprising a pattern formed by portions of an optically transmissive substrate exposed by openings in an opaque material disposed over the optically transmissive substrate, the pattern comprising a first optical filter and a second optical filter that are non-overlapping on the optically transmissive substrate, the first optical filter including a first optical filter material and the second optical filter including a second optical filter material different from the first optical filter material; and at least one visible light source configured to selectively emit light of a first color and light of a second color, wherein, when emitting light of the first color, the first optical filter is illuminated and the second optical filter material blocks light of the first color thereby preventing the second optical filter from being illuminated, and when emitting light of the second color, the second optical filter is illuminated and the first optical filter material blocks the light of the second color, thereby preventing the first optical filter from being illuminated.