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23 February 1987 Equipment For Optical Projection In The Entertainment Industry
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The wonder of the projected image in the entertainment industry has remained unique throughout most of history. Sunlight, campfires and torches surely illuminated the first storytellers and no doubt cast the first mysterious shadows on cave walls adding to the drama. Historically the sun may be considered to be the light source used in the first projection device. This was a somewhat primative optical device called the camera obscura. It was a device which used pinholes, lenses and sometimes mirrors to focus an image, usually of buildings or landscapes, on a drawing surface. We are not sure if we can credit any one individual with the invention of the camera obscura, but it is directly linked to the work of many artists and scientists. It was used extensively by many in the study of architecture and illustration. It marks a beginning in the creation of optical equipment for projection and photography.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James Mulder and Gordon Liljegren "Equipment For Optical Projection In The Entertainment Industry", Proc. SPIE 0692, Materials and Optics for Solar Energy Conversion and Advanced Lightning Technology, (23 February 1987);


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