滤镜反光计 mirror filter reflectometer

光时域反射计 OTDR ; optical time-domain reflectometer ; Domain Reflectometer OTDR

光电反射计 photronreflectometer ; [光] photoelectric reflectometer

反射式光度计 baffled photometer ; reflection photometer ; [光] reflectance photometer

反光白度计 teflectometer ; reflection meter

光反射计 optical reflectometer

反差光度计 contrast type photometer ; contrast photometer

光频域反射计 optical frequency domain reflectometer ; OFDR

反光伸长计 mirror extensometer