An optical filter for filtering light rays having mutually different light intensity and direction of incidence on the optical filter along a number of mutually different directions and having a predetermined wavelength or wavelengths, has a carrier body which is transmissive for light rays having the predetermined wavelength or wavelengths and a plurality of photo-adaptive light-blocking elements distributed within the carrier body rendering the optical filter least transmissive in the direction along which the light ray having the highest light intensity is incident.
申请公布号
US2008225422(A1)
申请公布日期
2008.09.18
申请号
US20060066678
申请日期
2006.08.29
申请人
KONINKLIJKE PHILIPS ELECTRONICS, N.V.
发明人
REDERT PETER-ANDRE;VAN GEEST BARTOLOMEUS WILHELMUS DAMIANUS;BROER DIRK JAN