Rotating Mirror Streak Camera With An Optional Image Intensifier Camera Back

O. G. Winslow; W. C. Davis

doi:10.1117/12.942214

4 February 1988 Rotating Mirror Streak Camera With An Optional Image Intensifier Camera Back

O. G. Winslow, W. C. Davis

Proceedings Volume 0832, High Speed Photography, Videography, and Photonics V; (1988) https://doi.org/10.1117/12.942214
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

The Combination Camera described here is a traditional rotating-mirror streak camera with several modern improve-ments, including an optional image intensifier camera back for use with weak light sources. It is intended for use in routine testing of high explosive devices, and for experimental studies of detonation phenomena. The mechanical design is carefully thought out to make precision alignment of the camera to the subject easy, and to make focusing quick and accurate. Interchangeable slit mountings provide single, multiple, and special slits that are accurately aligned to maximize the useful information from an experiment. The image intensifier provides light gains up to 5,000, so that sources with equivalent blackbody temperatures as low as 1500 K can be recorded with exposure times as small as 5 ns. The length of a single slit is 28 mm, and the total height of a multiple slit pattern can be as much as 28 mm. The film back for use without intensification uses 70-mm roll film, and the film back for use with the intensifier uses 4x5 film. Measured resolution on film is 60 1p/mm without intensification, and 16 1p/mm with intensification at maximum gain, and 18 1p/mm at lower gain. The camera has been found especially useful for laser interferometric velocimetry using a Fabry-Perot interferometer as the dispersing element, where light gain is usually necessary even with the largest lasers as light sources.

Citation Download Citation

O. G. Winslow and W. C. Davis "Rotating Mirror Streak Camera With An Optional Image Intensifier Camera Back", Proc. SPIE 0832, High Speed Photography, Videography, and Photonics V, (4 February 1988); https://doi.org/10.1117/12.942214

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