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SMPTE Journal ( Volume: 99, Issue: 9, September 1990)
[ACTIVE]

High-Sensitivity HDTV Camera Tube with a HARP Target

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
99, No. 9, pp. 723–726
Abstract
High-definition television (HDTV) cameras must have a high signal-to-noise ratio (SNR) and considerable depth of focus. Conventional cameras with Saticon® tubes cannot satisfy these two contradictory requirements because the sensitivity of the tubes is insufficient. In order to make a better HDTV handheld camera, a new combination of electron optics and the high-gain avalanche rushing amorphous photoconductor (HARP) target is proposed. A ⅔-in. (18mm) magnetic-focus electrostatic-deflection (MS) system provided with a unique axial-twist pattern-yoke was devised to conform with a HARP target. This resulted in a new camera tube 10 times as sensitive as a conventional tube, an amplitude response (AR) of 30% at 800 TV lines in the ITE AR chart, and good uniform resolution over the entire picture area with no sacrifice in lag or shading.
Publication Date
1990-09-01
DOI
10.5594/J02586
ISSN
Print: 0036-1682
Link
https://doi.org/10.5594/J02586
Author(s)
N. EgamiNHK Science and Technical Laboratories, Tokyo, Japan
T. YamagishiNHK Science and Technical Laboratories, Tokyo, Japan
S. OkazakiNHK Science and Technical Laboratories, Tokyo, Japan
K. TaniokaNHK Science and Technical Laboratories, Tokyo, Japan
M. KurashigeNHK Science and Technical Laboratories, Tokyo, Japan
K. OkuHitachi, Ltd., Tokyo, Japan
S. EhataHitachi, Ltd., Tokyo, Japan
Copyright
© 1990 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • Super-Sensitive HDTV Camera Tube with the Newly Developed HARP Target [Active]
  • 1. Kurashige M. , “1-In. Magnetic-Focus Electrostatic-Deflection Compact Saticon for HDTV Application,” J. Inst. TV Eng. Japan , 39 : 813 – 821 , Sept. 1985 . EXTERNAL
  • 2. Kurashige M. , “⅔-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
  • 3. Tanioka K. , “An Avalanche-Mode Amorphous Selenium Photoconductive Layer for Use as a Camera Tube Target,” IEEE Electron Device Utters , EDL-8 : 392 – 394 , Sept. 1987 . EXTERNAL
  • 4. Tanioka K. , “Avalanche-Mode Amorphous Selenium Photoconductive Target for Camera Tube,” Advances in Electronics and Electron Physics , 74 : 379 – 387 , 1988 . EXTERNAL
  • 6. Isozaki Y. , “1-In. Saticon for High Definition Color Television Cameras,” IEEE Trans. Electron Devices , ED-28 : 1500 – 1507 , Dec. 1981 . EXTERNAL
  • 7. Schlesinger K. , “A Mix-field Type of Vidicon,” IEEE Trans. Electron Devices , ED-14 : 163 – 170 , March 1967 . EXTERNAL
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N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; High-Sensitivity HDTV Camera Tube with a HARP Target, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J02586
Snippet:
N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; High-Sensitivity HDTV Camera Tube with a HARP Target, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J02586

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N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; High-Sensitivity HDTV Camera Tube with a HARP Target, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990. Available at https://doi.org/10.5594/J02586
Snippet:
<span class="citation">N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; <cite>High-Sensitivity HDTV Camera Tube with a HARP Target</cite>, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990. Available at <a href="https://doi.org/10.5594/J02586" target="_blank" rel="noopener">https://doi.org/10.5594/J02586</a></span>

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N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; High-Sensitivity HDTV Camera Tube with a HARP Target, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990
doi: 10.5594/J02586
url: https://doi.org/10.5594/J02586
Snippet:
<li>
N. Egami, T. Yamagishi, S. Okazaki, K. Tanioka, M. Kurashige, K. Oku, and S. Ehata; <cite id="bib-10-5594-j02586">High-Sensitivity HDTV Camera Tube with a HARP Target</cite>, SMPTE Journal ( Volume: 99, Issue: 9, September 1990); SMPTE, 1990
<span class="doi">10.5594/J02586</span>
</li>

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