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Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963)
[ACTIVE]

Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The resolution properties of the image orthicon have been studied experimentally for nonstandard scanning rates applicable in scientific observation. Resolution may be improved by (1) raising the photocathode voltage, (2) separating the exposure and scanning operations in time so as to minimize the effect of leakage of scan fields into image section, (3) cooling the target and (4) scanning slowly without reduction of bandwidth. When operated as suggested with highlights near the “knee,” the 3-in. image orthicon has an amplitude response of 50% at 900 TV-lines and a limiting resolution of about 1500 TV-lines. With increased illumination a limiting resolution of 3000 TV-lines (60 line-pairs/mm) is attained. Maximum resolution is set by capacitive coupling between elements at the target. Response to stellar or point source images is discussed. Measurement techniques and the sine-wave response of test lenses are given.
Publication Date
1963-10-01
DOI
10.5594/J06135
Link
https://doi.org/10.5594/J06135
Author(s)
William C. Livingston, William C. Livingston
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Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J06135.json

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William C. Livingston and William C. Livingston; Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963. Available at https://doi.org/10.5594/J06135
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William C. Livingston and William C. Livingston; Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963. Available at https://doi.org/10.5594/J06135

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William C. Livingston and William C. Livingston; Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963. Available at https://doi.org/10.5594/J06135
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<span class="citation">William C. Livingston and William C. Livingston; <cite>Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions</cite>, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963. Available at <a href="https://doi.org/10.5594/J06135" target="_blank" rel="noopener">https://doi.org/10.5594/J06135</a></span>

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William C. Livingston and William C. Livingston; Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963
doi: 10.5594/J06135
url: https://doi.org/10.5594/J06135
Snippet:
<li>
William C. Livingston and William C. Livingston; <cite id="bib-10-5594-j06135">Resolution Capability of the Image-Orthicon Camera Tube Under Nonstandard Scan Conditions</cite>, Journal of the SMPTE ( Volume: 72, Issue: 10, October 1963); SMPTE, 1963
<span class="doi">10.5594/J06135</span>
</li>