Dewey, Walter S.||Polzin, Donald E., 1930-||Arnold, Richard L., 1928-
M.A. (Master of Arts)
Department of Speech
The purpose of this study is twofold. The first phase is to survey those stage lighting instruments which could probably be in service to determine the variety of color frame sizes that are used by the various manufacturers of lighting instruments of two basic lens diameters for the purpose of suggesting a standardization of these sizes. The second phase is to develop a color frame that would be superior to those being used in currently manufactured instruments. Six and eight inch lens size instruments representative of the leading manufacturers were investigated. It was discovered that the various manufactured instruments using these two lens sizes require ten different color frame sizes. Procedures are outlined, using shims and sheet metal, for easily adapting the color frame holders of the various instruments so that the variety of color frames needed is reduced to four. The second phase of the study outlines a fabrication procedure for the production of fiberglass color frames to replace the existing metal color frames. The process is of such a nature that it may easily be carried out in any well equipped scene shop. Two types of fiberglass frames are developed. One resembles the existing metal color frame in that it has two sides joined at one edge like the covers of a book. This frame is fabricated so that a space is created between the two halves to accommodate the color media. The second type incorporates hinges along one edge to join the two halves together. The hinges allow the two halves of the frame to swing open allowing the color media to be placed in the color frame more easily. Comparison tests between fiberglass and metal indicate that the fiberglass color frames are nearly four times stronger than metal and absorb much less conduction heat. The raw material cost of the fiberglass frame is the same as the purchase price of the metal frame. Therefore, the labor time expended in fabrication and the investment in fabrication of molds represent the major cost differences. It is concluded that standardization of color frame sizes could best be accomplished by the manufacturer; however, the adaptation procedure suggested is simple enough to be carried out by nearly any technician. Once the frames have been standardized, there will need to be fewer molds made for the fabrication of the fiberglass color frame. The fiberglass frame is considerably superior to its metal counterpart and is well worth the effort expended for its fabrication.
Brackin, Martin L., "Standardization of a fiberglass color frame" (1972). Graduate Research Theses & Dissertations. 5037.
viii, 66 pages
Northern Illinois University
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