Thin-Probe Pulsed-Light Photometer for Measurement and Calibration of Timing and other Pulsed-Light Sources

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 78, No. 9, pp. 718–721
Abstract: The apertures of timing blocks, by which range-timing signals are “written” on the film record, are inaccessible for normal photometry. Measurements of this type are made with a new thin-probe pulsed photometer sensitive to 0.01 fL and versatile to use. The photometer's circuitry is sensitive only to pulsating light signals; it will not respond to the continuous ambient light levels normally encountered in the field or laboratory. With expanded ranges and scales of light sensing and higher bandpass characteristics, the instrument predicts the film exposure at all film speeds and frame rates. Additional plug-in probes adapt the meter-amplifier for a variety of measurements in numerous fields where a small, sensitive pickup is required.
Publication Date: 1969-09-01
DOI: 10.5594/J10812
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J10812
Author(s): Leroy M. DearingL. M. Dearing Assoc, Inc., 12345 Ventura Blvd., Suite R, Studio City, CA 91604.
Robert E. HillerL. M. Dearing Assoc, Inc., 12345 Ventura Blvd., Suite R, Studio City, CA 91604.
C. Henderson BealL. M. Dearing Assoc, Inc., 12345 Ventura Blvd., Suite R, Studio City, CA 91604.
Copyright: © 1969 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

A Photometer for Measuring the Output of Timing Lights [Active]
Miniature Light Sources for Timing Signal Recording [Active]
3. General Electric Co., Miniature Lamp Dept., Nela Park, Cleveland, OH 44112, SSL-11. EXTERNAL
4. Monsanto Electronics Dept., 800 N. Lindbergh Blvd., St. Louis, MO 63166, MV1, MV10. EXTERNAL

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Leroy M. Dearing, Robert E. Hiller, and C. Henderson Beal; Thin-Probe Pulsed-Light Photometer for Measurement and Calibration of Timing and other Pulsed-Light Sources, Journal of the SMPTE ( Volume: 78, Issue: 9, September 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10812

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Leroy M. Dearing, Robert E. Hiller, and C. Henderson Beal; Thin-Probe Pulsed-Light Photometer for Measurement and Calibration of Timing and other Pulsed-Light Sources, Journal of the SMPTE ( Volume: 78, Issue: 9, September 1969); SMPTE, 1969. Available at https://doi.org/10.5594/J10812

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<span class="citation">Leroy M. Dearing, Robert E. Hiller, and C. Henderson Beal; <cite>Thin-Probe Pulsed-Light Photometer for Measurement and Calibration of Timing and other Pulsed-Light Sources</cite>, Journal of the SMPTE ( Volume: 78, Issue: 9, September 1969); SMPTE, 1969. Available at <a href="https://doi.org/10.5594/J10812" target="_blank" rel="noopener">https://doi.org/10.5594/J10812</a></span>

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<li>
Leroy M. Dearing, Robert E. Hiller, and C. Henderson Beal; <cite id="bib-10-5594-j10812">Thin-Probe Pulsed-Light Photometer for Measurement and Calibration of Timing and other Pulsed-Light Sources</cite>, Journal of the SMPTE ( Volume: 78, Issue: 9, September 1969); SMPTE, 1969
<span class="doi">10.5594/J10812</span>
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Referenced By

Progress Committee Report for 1969 [Active]