LED control system with feedback

LED illumination system with polarization recycling

LED illumination system with polarization recycling

LED light shaping device and illumination system

Led-based flashlight

LED-illumination-type DMD projector and optical system thereof

Lens adapter for creating photographically reproduced designs wi

Lens arrangements for microfiche reader assembly and method

Lens cover

Lens cover set

Lens design to eliminate color fringing

Lens device and projector having diaphragm mechanisms with...

Lens device and projector having diaphragm mechanisms with...

Lens device and projector having diaphragm mechanisms with...

Lens device and projector having diaphragm mechanisms with...

Lens focusing means for slide projectors

Lens module having thermal dissipation structure with...

Lens moving device for opaque reader

Lens projecting device

Lens shift mechanism and projection type video display