PHOTO RESEARCH

Electro-Optical Instruments and Devices for Measuring Radiant Energy in Scientific, Industrial, and Photographic Applications-, namely, Color Temperature Meters, [ Colorimeters, Reflectometers, Transmissometers, TV Cameras, Image Analyzers, Exposure Meters, Densitometers, Color Densitometers, Meter Testers, ] Light Filters; [ Viewing Glasses; ] Instruments for Photometry and Radiometry-, namely, Luminance Meters, Radiance Meters, Illuminance Meters, Irradiance Meters, Spectroradiometers, [ Candle-Power Meters, ] Optical Lenses, [ Control Console Units, Power Supply Units, Disability Glare Integrators, Photometric Testers, ] Tripods, [ Optical Heads, High Resolution Image Projectors, Lens Calibrators, Brightness Response Meters, ] Reflectance Standards, Luminance Standards [, and Monochromatic Light Sources ]