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reflector lamp. Higher levels of stage illumination are being used with 3-D and anamorphic lens systems.
To increase the life of C.P. lamps, the British Film Producers Association Lighting Committee is encouraging the use of 3250 K lamps. Studies are being made of this proposal in cooperation with Kodak, Gevaert and Technicolor.
An interesting new arc lamp using three carbons at 180 amp was developed by Arnold & Richter of Munich, Germany. A motionless arc and tailflame are basic advantages of this new design.
The Century Lighting Co. has done considerable work with remote-controlled incandescent lamps for television stage lighting. The facilities include remote control of intensity without change of color temperature or distribution pattern, an important feature for the future of the lighting of color television. Remote-controlled pan and tilt and elevation are also incorporated in these units, together with the necessary simplified operator control pedestals.
Set Construction
A number of plastics and allied materials57-58 found application in set construction and the fabrication of props and statuary. One studio59-60 is now using Fiberglas-reinforced polyester resins as a replacement for casting with plaster. Weight is reduced and mechanical strength increased which many times justifies the higher cost of the plastic material.
Emulsion paints of the polystyrene and styrene copolymer types are finding use in interior applications, while polyvinyl acetate and polyacrylic coating formulations are finding some use for outdoor applications. For making imitation metallic props, the Motion Pic
ture Research Council developed a cold-spray metal composition which can be buffed to give a striking metallic luster. Salvage of worn-out electrical cables is being effected where the old cable is stripped of its worn insulation and drawn into new extruded neoprene jackets, using a simple vacuum process. The lubricant which is used changes at a later time into an adhesive or friction promoter between cable core and neoprene jacket.
Measuring Instruments
A new photoelectric Brightness Spot Meter61 was developed by the Photo Research Corp. for the measurement of brightness for small areas. This instrument is useful for both photography and the checking of screen illumination. Agfa brought out a new-type logarithmic-scale exposure meter called the Lucimeter intended for professional use in studios.
High-Speed Photography
There was a marked increase in the field of high-speed photography during 1953. The bibliography in this field is now quite complete: 466 references are included in the new book High-Speed Photography by George A. Jones62; 581 references were published in the January 1951 issue of the Journal; 207 additional references63 were published in December 1953; and 36 references are included as a part of this report. Shortduration electrical spark methods were described by Chesterman,64 Fayolle and Naslin,65 and Schardin.66 CourtneyPratt67 described a method for dissecting a picture into small elements using a plate embossed with many small lenses. This paper lists 99 references.
New commercial-type equipment described during the year includes: a fullframe 35mm Fastax camera with 500-ft
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May 1954 Journal of the SMPTE Vol. 62