Optical device
Optical device for concentrating the light radiation emitted by
Optical device, illumination apparatus using the device, and...
Optical device, illumination apparatus using the device, and...
Optical element and display device provided with said optical el
Optical filter and organic EL display using the same
Optical filter and organic EL display using the same
Optical filter for CIE daylight simulator
Optical filters comprising pyrolyzed polyimide films and lamp
Optical interference coating and lamps using same
Optical interference coatings and lamps using same
Optical interference coatings and lamps using same
Optical interference film and lamp having the same
Optical light source device
Optical platform to enable efficient LED emission
Optical platform to enable efficient LED emission
Optical-path changing apparatus, and light radiating apparatus
Organic EL display
Organic electroluminescent device
Organic electroluminescent device