Illumination Characteristics of Portable Spotlights Open PDF Document Details Document Type Technical Report Publication Date Dec 31, 1942 Accession Number ADA955316 Entities People Merle E. Sutton Tags Communities of Interest Energy and Power Technologies DTIC Thesaurus Topics Cameras Candles Diameters Dry Batteries Emergencies Energy Engineers Floodlights Light Sources Materials Military Police Motion Pictures Night Photography Photographs Photography Storage Storage Batteries