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Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971)
[ACTIVE]

Recent Trends and Developments of Zoom Lenses

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
80, No. 8, pp. 631–634
Abstract
Extensive use and better understanding of the full potentialities of zoom lenses have resulted in the evolution of new techniques of studio operation and viewer presentation in broadcast television. The emerging pattern of future usage and the present state of the optical art suggest that many of the types of zoom lenses in use today may have reached the limits of modification and improvement. Although the tendency toward smaller studio settings is an important factor, there are other aspects of operation and viewer presentation which put additional emphasis on the requirements of wider angular field of view and shorter working distances. It is this emphasis which indicates that new optical principles of construction are essential for the future. A family of zoom lenses has recently been developed that employs three moving members instead of the conventional two, thus providing more numerous and more useful optical design variables while at the same time combining optical and mechanical compensation for image shift in a manner which simplifies some of the mechanical problems which at present are typical of mechanically compensating systems.
Publication Date
1971-08-01
DOI
10.5594/J05769
ISSN
Print: 0361-4573
Link
https://doi.org/10.5594/J05769
Author(s)
G. H. CookRank Precision Industries, Ltd., P.O. Box 36, Leicester House, Lee Circle, Leicester, LE1 9JB, England.
F. R. LaurentRank Precision Industries, Ltd., P.O. Box 36, Leicester House, Lee Circle, Leicester, LE1 9JB, England.
Copyright
© 1971 Society of Motion Picture and Television Engineers, Inc.
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G. H. Cook and F. R. Laurent; Recent Trends and Developments of Zoom Lenses, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05769
Snippet:
G. H. Cook and F. R. Laurent; Recent Trends and Developments of Zoom Lenses, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05769

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G. H. Cook and F. R. Laurent; Recent Trends and Developments of Zoom Lenses, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05769
Snippet:
<span class="citation">G. H. Cook and F. R. Laurent; <cite>Recent Trends and Developments of Zoom Lenses</cite>, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J05769" target="_blank" rel="noopener">https://doi.org/10.5594/J05769</a></span>

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Preview:
G. H. Cook and F. R. Laurent; Recent Trends and Developments of Zoom Lenses, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971
doi: 10.5594/J05769
url: https://doi.org/10.5594/J05769
Snippet:
<li>
G. H. Cook and F. R. Laurent; <cite id="bib-10-5594-j05769">Recent Trends and Developments of Zoom Lenses</cite>, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971
<span class="doi">10.5594/J05769</span>
</li>

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