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Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947)
[ACTIVE]

An Analysis of Low-Reflection Coatings as Applied to Glass

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
49, No. 1, pp. 27–36
Abstract
A brief summary of the development of the low-reflection coating is given. As instruments were improved, a point was soon reached where further improvement in optical design required elimination of surface reflections. An explanation of the color effect observed in a coating and a method of applying a film whose index varies from top to bottom which will eliminate the color effect is described. A comparison is drawn between the coating produced by natural aging, nitric acid, hydrofluoric acid, magnesium fluoride, and the American Optical Company low-reflection coatings. This shows that the magnesium fluoride is the most practical film to date when all factors are taken into consideration. The American Optical method of applying coatings without using vacuum is described. There are four main advantages in using a low-reflection coating: (1) elimination of reflections, (2) increased transmission, (3) increased contrast, and (4) increased chemical stability. Several tests are outlined which indicate that glass properly coated with magnesium fluoride will withstand more chemical abuse than uncoated glass. A new method of removing a high-temperature-baked low-reflection coating using melted crystals of potassium bisulfate is described which will materially speed the decoating process.
Publication Date
1947-07-01
DOI
10.5594/J12685
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J12685
Author(s)
W. P. Strickland
Copyright
© 1947 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • Jones F. L. : “Some Properties of Polished Glass Surfaces” , J. Soc. Mot. Pict. Eng. , XXXVII , 3 (Sept. 1941 ), p. 256 . EXTERNAL
  • Tyler J. E. Morse R. S. Jewett F. B. Jr. : “On the Performance of Optical Instrument with Coated Lens System” , J. Opt., Soc. Amer. , 32 , (April 1942 ), p. 211 . EXTERNAL
  • Lyon D. A. : “Practical Application of Metallic and Non-Metallic Films on Optical Elements” , J. Opt. Soc. Amer. , 35 , 2 (Feb. 1945 ), p. 157 . EXTERNAL
  • Nicoll F. H. : “A New Chemical Method of Reducing the Reflection of Glass” , RCA Rev. , VI , 3 (Jan. 1942 ), p. 287 . EXTERNAL
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W. P. Strickland; An Analysis of Low-Reflection Coatings as Applied to Glass, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12685
Snippet:
W. P. Strickland; An Analysis of Low-Reflection Coatings as Applied to Glass, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12685

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W. P. Strickland; An Analysis of Low-Reflection Coatings as Applied to Glass, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at https://doi.org/10.5594/J12685
Snippet:
<span class="citation">W. P. Strickland; <cite>An Analysis of Low-Reflection Coatings as Applied to Glass</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947. Available at <a href="https://doi.org/10.5594/J12685" target="_blank" rel="noopener">https://doi.org/10.5594/J12685</a></span>

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Preview:
W. P. Strickland; An Analysis of Low-Reflection Coatings as Applied to Glass, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947
doi: 10.5594/J12685
url: https://doi.org/10.5594/J12685
Snippet:
<li>
W. P. Strickland; <cite id="bib-10-5594-j12685">An Analysis of Low-Reflection Coatings as Applied to Glass</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 49, Issue: 1, July 1947); SMPTE, 1947
<span class="doi">10.5594/J12685</span>
</li>

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