Patent ID: 7056000

Claim:
Apparatus for testing a plurality of light emitting devices ( 5 ) on a panel ( 3 ), the apparatus ( 4 ) comprising: a plurality of light collecting means ( 10 ), one light collecting means ( 10 ) being provided for each light emitting device ( 5 ) for collecting light from the corresponding light emitting device ( 5 ), an analyzing means ( 12 ) for analyzing light from the respective light collecting means ( 10 ), and a verifying means ( 8 , 27 , 65 ) for verifying that each light emitting device ( 5 ) is emitting light of the correct color, wherein the analyzing means ( 12 ) comprises an image sensing panel ( 11 ) comprising a plurality of pixels ( 25 ) arranged in a matrix of rows and columns, and the respective collecting means ( 10 ) direct collected light onto the image sensing panel ( 11 ) at respective spaced apart locations so that the collected light from the respective light emitting devices ( 5 ) is incident on corresponding pixels ( 25 ) of the image sensing panel ( 11 ).