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SMPTE Journal ( Volume: 97, Issue: 7, July 1988)
[ACTIVE]

Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
97, No. 7, pp. 538–545
Abstract
Conventional HDTV cameras lack sensitivity, so the iris must be opened two to three stops wider compared with practical cameras working within existing TV standards. This narrows the depth of focus, sacrificing picture quality. A more sensitive HDTV camera tube that combines a new high-gain avalanche rushing amorphous photoconductor {HARP) target and 2/3-in. high-performance magnetic-focus electrostatic-deflection (MS) electron optics is proposed. The combination results in a super-sensitive camera tube (10 times as sensitive as the Saticon) with an amplitude response of 36% at 800 TV lines (aspect ratio 4:3). This was achieved with no sacrifice in picture quality and no deterioration in resolution, lag, spectral response, or noise characteristics. After-image is negligible.
Publication Date
1988-07-01
DOI
10.5594/J02920
ISSN
Print: 0036-1682
Link
https://doi.org/10.5594/J02920
Author(s)
M. KurashigeScience and Technical Research Laboratories. NHK. (Japan Broadcasting Corp.), Tokyo 157, Japan
N. EgamiScience and Technical Research Laboratories. NHK. (Japan Broadcasting Corp.), Tokyo 157, Japan
K. TaniokaScience and Technical Research Laboratories. NHK. (Japan Broadcasting Corp.), Tokyo 157, Japan
K. ShidaraScience and Technical Research Laboratories. NHK. (Japan Broadcasting Corp.), Tokyo 157, Japan
Copyright
© 1988 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Kurashige M. , “TV Cameras,” J. Inst. TV Eng. Japan , 39 : 669 – 674 , Aug. 1987 . EXTERNAL
  • 10. Tanioka K. . “Avalanche Mode Amorphous Selenium Target for Pickup Tube,” in 1987 Nat. Conv. Inst. TV Eng. Japan , No. 2–9, July 1987 . EXTERNAL
  • 11. Pai D. M. Enck R. C. , “Onsager Mechanism of Photogeneration in Amorphous Selenium,” Phys. Rev. B , 1 : 5136 – 5174 , 1975 . EXTERNAL
  • 12. Hagen S. H. Derks P. J. A. , “Photogeneration and Optical Absorption in Amorphous Se-Te Alloys,” J. Non-Crystalline Solids , 65 : 241 – 259 , 1984 . EXTERNAL
  • 2. Schade O. H. , “Electron Optics and Signal Readout of High Definition Return-Beam Vidicon Cameras,” RCA Rev. , 31 : 60 – 119 , Mar. 1970 . EXTERNAL
  • 3. Isozaki Y. . “1-Inch Saticon for High-Definition Color Television Cameras,” IEEE Trans. Electron Devices , ED-28 :1500–1507, Dec. 1981 . EXTERNAL
  • 4. Kurashige M. . “A Magnetic-Focus Electrostatic-Deflection Compact Camera Tube,” Adv. in Electronics and Electron Physics , 64B : 415 – 429 . Academic Press, June 1985 . EXTERNAL
  • 5. Kurashige M. . “1-In. Magnetic-Focus Electrostatic-Deflection Compact Saticon for HDTV Applications,” J. Inst. TV Eng. Japan , 39 :813–821, Sept. 1985 . EXTERNAL
  • 6. Kurashige M. . “2/3-In. MS (Magnetic-Focus Electrostatic-Deflection) Type Saticon for HDTV Hand-Held Color Cameras,” IEEE Trans. Consumer Electronics , CE-33 :39 46, Feb. 1987 . EXTERNAL
  • 7. Goto N. . “Saticon, a New Photoconductive Camera Tube with Se-As-Te Target,” IEEE Trans. Electron Devices , ED-21 :662–666, Nov. 1974 . EXTERNAL
  • 8. Shidara K. . “The Advanced Composition of Saticon Photoconductive Target,” IEEE Electron Device Letters , EDL-2 :101 102, Apr. 1981 . EXTERNAL
  • 9. Tanioka K. . “An Avalanche-Mode Amorphous Selenium Photoconductive Layer for Use as a Camera Tube Target,” IEEE Electron Device Letters , EDL-8 :392–394, Sept. 1987 . EXTERNAL
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M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988. Available at https://doi.org/10.5594/J02920
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M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988. Available at https://doi.org/10.5594/J02920

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M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988. Available at https://doi.org/10.5594/J02920
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<span class="citation">M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; <cite>Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target</cite>, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988. Available at <a href="https://doi.org/10.5594/J02920" target="_blank" rel="noopener">https://doi.org/10.5594/J02920</a></span>

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M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988
doi: 10.5594/J02920
url: https://doi.org/10.5594/J02920
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M. Kurashige, N. Egami, K. Tanioka, and K. Shidara; <cite id="bib-10-5594-j02920">Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target</cite>, SMPTE Journal ( Volume: 97, Issue: 7, July 1988); SMPTE, 1988
<span class="doi">10.5594/J02920</span>
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