Aperture Ratio of High Speed Raster Motion-Picture Cameras,
Abstract
Analysis of the performance of two types of high speed motion picture cameras in which a screen (raster) is positioned in front of the photosensitive material and an additional objective is used to produce a screen image in the plane of the material. The theoretical basis and the optical systems of these Soviet made cameras are discussed. Design requirements are outlined to obtain high aperture ratios in these devices. It is indicated that the effective aperture ratios of these cameras can be several times lower than those calculated from the formulas of geometric optics even when the dimensions of the screen image elements are optimum. This finding is linked to the light diffraction and scattering in the emulsion layer of the photosensitive material. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 11, 1972
- Accession Number
- AD0740353
Entities
People
- O. F. Grebennikov
Organizations
- National Air and Space Intelligence Center