Paper G–5: Model 200 Reflecting-Optics Sweep Camera

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 71, No. 1A, pp. 319–321
Abstract: A sweep-image camera uses reflecting optics to achieve certain preselected performance characteristics: (1) high writing speed (30 to 60 mm/μsec); (2) f-number to produce image densities generally accepted on existing sweep cameras, f/8; (3) resolution compatible with film generally used, 70 lines/mm; (4) absence of chromatic aberration; and (5) rugged compactness. Two basic designs are discussed: one is a basic camera for infinity or near infinity use, having three reflecting components, an off-axis parabolic mirror objective, a flat “diagonal” mirror and the rotating mirror; the other is a basic camera with external, independent objective, or telescope, for any distance, using spherical mirror off-axis with cylindrically corrected diagonal and rotating mirror. A three-sided rotating mirror, with high length-to-diameter ratio is used, permitting a design speed of 32,000 rps, maximum. The stationary mirrors conform to the same aspect ratio as the rotor (approx. 6: 1). The camera body is explosion proof and easily adapted to vacuum operation. 16mm film is used. The film support deviates from a true circle to provide constant overall optical path length. The camera is continuous “writing,” each face “writing” 240° with overlap to permit continuity with the following face, and thus need for synchronization with the recorded event is eliminated.
Publication Date: 1962-01-01
DOI: 10.5594/J18132XY
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J18132XY
Author(s): Thure Anderson
Copyright: © 1962 Society of Motion Picture and Television Engineers, Inc.

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Thure Anderson; Paper G–5: Model 200 Reflecting-Optics Sweep Camera, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18132XY

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Thure Anderson; Paper G–5: Model 200 Reflecting-Optics Sweep Camera, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18132XY

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Thure Anderson; Paper G–5: Model 200 Reflecting-Optics Sweep Camera, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18132XY

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<span class="citation">Thure Anderson; <cite>Paper G–5: Model 200 Reflecting-Optics Sweep Camera</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at <a href="https://doi.org/10.5594/J18132XY" target="_blank" rel="noopener">https://doi.org/10.5594/J18132XY</a></span>

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Thure Anderson; Paper G–5: Model 200 Reflecting-Optics Sweep Camera, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962
doi: 10.5594/J18132XY
url: https://doi.org/10.5594/J18132XY

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<li>
Thure Anderson; <cite id="bib-10-5594-j18132xy">Paper G–5: Model 200 Reflecting-Optics Sweep Camera</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962
<span class="doi">10.5594/J18132XY</span>
</li>