Integrated sphere for diffusal reflectance and transmittance
Integrating light mixer
Integrating photometer for measuring total flux of light...
Integrating sphere power meter
Inverse fourth power photometric calibrator
Lamp stablity diagnostic system
Laser beam power detecting device for planar type...
Laser dummy load
Laser energy measuring unit and laser machining apparatus
Laser power and energy meter
Laser power measuring jig for optical disk unit
Laser power meter
Laser sensor holder
Laser testing probe
Laser warning sensor
LCD bargraph motion picture light meter
Light amount measuring apparatus
Light detecting device
Light intensity detecting methods and devices, display...
Light intensity detection apparatus for a luminous flux with a c