tem for aircraftUS8174743 *Jan 14, 2009May 8, 2012Optaglio LimitedOptical security deviceDE102008013274A1 *Mar 10, 2008Sep 17, 2009Volkswagen AgDisplay device i.e. instrument cluster, for motor vehicle, has light source e.g. LED, arranged such that light emitted from light source is incident on hologram e.g. white light hologram, of partially transparent cover disk* Cited by examinerClassification