API Build-data JSON Resources
Theme

Choose how MSRBot.io looks on this device.

Auto (match system) Light mode Dark mode

Preference is stored in this browser only.

Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941)
[ACTIVE]

A new Mirror Light-Modulator

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
36, No. 5, pp. 488–496
Abstract
A vibrating mirror light-modulator developed for 200-mil push-pull recording is described. Modern magnetic materials are used in the magnetic structure to obtain high electromagnetic efficiency and therefore adequate electromagnetic damping. Distortion is limited to low values by accurate mechanical balance of the armature. An inverse shunting network, to build the modulator impedance out to a constant resistance, has been developed, making the response characteristic substantially free from driving-circuit impedance, so that any desired frequency characteristic can be obtained by the insertion of a constant-resistance equalizer.
Publication Date
1941-05-01
DOI
10.5594/J12901
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J12901
Author(s)
W. R. GoehnerBell Telephone Laboratories, New York, N. Y.
Copyright
© 1941 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Harrison H. C. : U. S. Pat. applied for. EXTERNAL
  • 2. Legg V. E. : “Survey of Magnetic Materials and Applications in Telephone Systems,” Bell Syst. Tech. J. (July, 1939 ), p. 438 . EXTERNAL
  • 3. Wegel R. L. : “Theory of Magneto-Mechanical Systems as Applied to Telephone Receivers and Similar Structures,” J. A. I. E. E. , XL (Oct., 1921 ), p. 791 . EXTERNAL
  • 4. Johnson K. S. : “Transmission Circuit for Telephonic Communication,” D. Van Nostrand & Co. ( 1927 ), p. 237 . EXTERNAL
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12901.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree
Reference this Doc

Plain text (ISO 690 compliant)

Preview:
W. R. Goehner; A new Mirror Light-Modulator, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12901
Snippet:
W. R. Goehner; A new Mirror Light-Modulator, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12901

HTML (ISO 690 compliant)

Preview:
W. R. Goehner; A new Mirror Light-Modulator, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12901
Snippet:
<span class="citation">W. R. Goehner; <cite>A new Mirror Light-Modulator</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at <a href="https://doi.org/10.5594/J12901" target="_blank" rel="noopener">https://doi.org/10.5594/J12901</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
W. R. Goehner; A new Mirror Light-Modulator, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941
doi: 10.5594/J12901
url: https://doi.org/10.5594/J12901
Snippet:
<li>
W. R. Goehner; <cite id="bib-10-5594-j12901">A new Mirror Light-Modulator</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941
<span class="doi">10.5594/J12901</span>
</li>

Referenced By