Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921)

[ACTIVE]

Optical Glass

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The earliest lenses—those made by Galileo and men of his time were made of glass, not optical glass in particular, but any glass;—the glass available. In other words, in early times there was no such thing as optical glass as we now understand the term. As time went on and the demand for better lenses and a greater variety of the same increased, greater attention and more careful calculations were brought into play. It became evident, as was demonstrated by Dr. Abbe in the early 80's, that the then existing varieties of glass were not sufficient either in quality or diversified properties to meet the needs. About this time both in France and Germany some real research was begun in the manufacture of optical glass as we now know it. Problems not only in making a greater variety of glasses but in eliminating defects in the kinds already made were pressing for solution. Indeed, some of these problems are only recently being solved. This is particularly true in regard to annealing, for we find that our own glass is much better annealed than that of foreign makers who have been working at the problem for years. We have given considerable attention to the annealing and have adopted some really scientific methods which have brought very satisfactory results.
Publication Date: 1921-01-01
DOI: 10.5594/J12472
Link: https://doi.org/10.5594/J12472
Author(s): H. N. Ott

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12472.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

H. N. Ott; Optical Glass, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921. Available at https://doi.org/10.5594/J12472

Snippet:

H. N. Ott; Optical Glass, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921. Available at https://doi.org/10.5594/J12472

HTML (ISO 690 compliant)

Preview:

H. N. Ott; Optical Glass, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921. Available at https://doi.org/10.5594/J12472

Snippet:

<span class="citation">H. N. Ott; <cite>Optical Glass</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921. Available at <a href="https://doi.org/10.5594/J12472" target="_blank" rel="noopener">https://doi.org/10.5594/J12472</a></span>

SMPTE's HTML Pub

Preview:

H. N. Ott; Optical Glass, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921
doi: 10.5594/J12472
url: https://doi.org/10.5594/J12472

Snippet:

<li>
H. N. Ott; <cite id="bib-10-5594-j12472">Optical Glass</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 5, Issue: 13, 1921); SMPTE, 1921
<span class="doi">10.5594/J12472</span>
</li>