A Segmented Lens for Improving Color Television Dot Patterns

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 82, No. 3, pp. 149–150
Abstract: A new segmented lens has been designed and fabricated that is intended to replace a conventional, continuous-surface lens used in making color TV picture tubes. The lens is employed in the lighthouse during the phosphor dot screening process. Using the segmented lens, it has been possible to reduce beam landing errors by more than 50% in the new 110° deflection angle picture tubes. With this lens, the wide-angle tubes should be no more difficult to produce than ordinary 90° tubes, and when it is used in the manufacture of 90° tubes, pictures of unprecedented high quality are made possible.
Publication Date: 1973-03-01
DOI: 10.5594/J07677
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J07677
Author(s): Eiichi YamazakiHitachi, Ltd., Tokyo, Japan
Koichi MaruyamaHitachi, Ltd., Tokyo, Japan
Toshio UedaHitachi, Ltd., Tokyo, Japan
Iwao OguraTokyo University, Tokyo, Japan
Copyright: © 1973 Society of Motion Picture and Television Engineers, Inc.

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J07677.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Eiichi Yamazaki, Koichi Maruyama, Toshio Ueda, and Iwao Ogura; A Segmented Lens for Improving Color Television Dot Patterns, Journal of the SMPTE ( Volume: 82, Issue: 3, March 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J07677

Snippet:

Eiichi Yamazaki, Koichi Maruyama, Toshio Ueda, and Iwao Ogura; A Segmented Lens for Improving Color Television Dot Patterns, Journal of the SMPTE ( Volume: 82, Issue: 3, March 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J07677

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">Eiichi Yamazaki, Koichi Maruyama, Toshio Ueda, and Iwao Ogura; <cite>A Segmented Lens for Improving Color Television Dot Patterns</cite>, Journal of the SMPTE ( Volume: 82, Issue: 3, March 1973); SMPTE, 1973. Available at <a href="https://doi.org/10.5594/J07677" target="_blank" rel="noopener">https://doi.org/10.5594/J07677</a></span>

SMPTE's HTML Pub

Preview:

Snippet:

<li>
Eiichi Yamazaki, Koichi Maruyama, Toshio Ueda, and Iwao Ogura; <cite id="bib-10-5594-j07677">A Segmented Lens for Improving Color Television Dot Patterns</cite>, Journal of the SMPTE ( Volume: 82, Issue: 3, March 1973); SMPTE, 1973
<span class="doi">10.5594/J07677</span>
</li>