airborne light-optical-fibre technology (ALOFT)
electro-optical light intensity modualtor
electro-optical light modulation
electro-optical light-detecting apparatus
Light-Exposure and Light-and-Water-Exposure Apparatus
light-light transfer efficiency
lightweight Light-Expansion Concrete
optical light source and detector
optical switch controlled by optical light
polarized-light optical system
White Light Light-Emitting Diode
white-light optical processing system
optical-optical conversion efficiency
Optical-optical double resonance
optical-optical double resonance(OODR)