Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941)

[ACTIVE]

Recent Improvements in Non-Reflective Lens Coating

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 37, No. 9, pp. 265–273
Abstract: As early as 1892 it was known that the reflectivity of polished glass surfaces was reduced and the light transmission increased when a suitable film was present on the surface of the glass. Many efforts to produce such a film artificially met with only partial success. In the past five years, two different methods have been discovered that achieve the desired results. Only one of the processes, however, was satisfactory for commercial application. Great improvements have been made in the durability and weather resistance of the thin films deposited upon the lens surface by this method. Lenses coated by this improved process require no more careful handling than any good lens is entitled to; fingerprints and dust can be removed without detrimental effects to the coating. The thin films can not be scratched with anything less hard than a metal point. By this process, reflectivity can be reduced from an average of 5 per cent for untreated polished surfaces to as low as 0.5 per cent for treated ones. Experiments show that even greater reductions are possible and should be available in the near future.
Publication Date: 1941-09-01
DOI: 10.5594/J09969
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J09969
Author(s): William C. MillerVard Mechanical Laboratory, Pasadena, Calif.
Copyright: © 1941 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Strong J. : “On a Method of Decreasing the Reflection from Non-Metallic Surfaces,” J. Opt. Soc. Amer. , 26 (Jan., 1936 ), p. 73 . EXTERNAL
2 Blodgett K. B. : “The Use of Interference to Extinguish the Reflection of Light from Glass,” Phys. Rev. , 55 (April, 1939 ), p. 391 . EXTERNAL
3 Cartwright C. H. Turner A. F. : Phys. Rev. , 55 ( 1939 ), p. 595(A) . EXTERNAL
4 Cartwright C. H. Turner A. F. : “Treatment of Camera Lenses with Low-Reflecting Films,” J. Opt. Soc. Amer. , 30 (Feb., 1940 ), p. 110 . EXTERNAL
5 Miller W. C. : “Speed Up Your Lens Systems,” J. Soc. Mot. Pict. Eng. , XXXV (July, 1940 ), p. 3 . EXTERNAL

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William C. Miller; Recent Improvements in Non-Reflective Lens Coating, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J09969

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William C. Miller; Recent Improvements in Non-Reflective Lens Coating, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J09969

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<span class="citation">William C. Miller; <cite>Recent Improvements in Non-Reflective Lens Coating</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941); SMPTE, 1941. Available at <a href="https://doi.org/10.5594/J09969" target="_blank" rel="noopener">https://doi.org/10.5594/J09969</a></span>

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William C. Miller; Recent Improvements in Non-Reflective Lens Coating, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941); SMPTE, 1941
doi: 10.5594/J09969
url: https://doi.org/10.5594/J09969

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<li>
William C. Miller; <cite id="bib-10-5594-j09969">Recent Improvements in Non-Reflective Lens Coating</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 9, September 1941); SMPTE, 1941
<span class="doi">10.5594/J09969</span>
</li>