Liquid Gate for Optical Printing

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 79, No. 4, pp. 333–337
Abstract: A 16mm liquid gate has been built for use in an Acme Optical Printer. Thin liquid layers at the windows provide tight film positioning in this total immersion gate. Film rides between rails, one set of which is compliant for passing splices. Registration pins are fixed. Operational speeds from hold-frame to 640 frames/min (16 ft/min) are possible in either forward or reverse direction; normal operation has been 320 frames/min (8 ft/min). Continuous cleaning is provided by first vacuuming the film as it enters the gate area, then flushing its surfaces with liquid prior to projection. Liquid enters the gate near its windows and leaves through the vacuum slots at either end of the gate. Insweep of air at the gate ends provides a squeegee for liquid removal from the film. The closed support system provides filtered, bubble-free liquid to the gate. Inhibited perchloroethylene is used as the immersion liquid. The gate is easily loaded and used with little change in procedure from normal dry-gate operation.
Publication Date: 1970-04-01
DOI: 10.5594/J10714
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J10714
Author(s): Howard F. OttPhotographic Technology Div., Kodak Park, Eastman Kodak Co., Rochester, NY 14650.
Copyright: © 1970 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Liquid Gate for the Projection of Motion-Picture Film [Active]
Printing Motion-Picture Films Immersed in a Liquid Part III: Evaluation of Liquids [Active]
Printing Motion-Picture Films Immersed in a Liquid: Part I: Contact Printing [Active]
4. Appendix to American National Standard Projected Image Area of 16mm Motion-Picture Film, PH 22.8–1957. EXTERNAL

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J10714.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Howard F. Ott; Liquid Gate for Optical Printing, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J10714

Snippet:

Howard F. Ott; Liquid Gate for Optical Printing, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J10714

HTML (ISO 690 compliant)

Preview:

Howard F. Ott; Liquid Gate for Optical Printing, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J10714

Snippet:

<span class="citation">Howard F. Ott; <cite>Liquid Gate for Optical Printing</cite>, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970. Available at <a href="https://doi.org/10.5594/J10714" target="_blank" rel="noopener">https://doi.org/10.5594/J10714</a></span>

SMPTE's HTML Pub

Preview:

Howard F. Ott; Liquid Gate for Optical Printing, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970
doi: 10.5594/J10714
url: https://doi.org/10.5594/J10714

Snippet:

<li>
Howard F. Ott; <cite id="bib-10-5594-j10714">Liquid Gate for Optical Printing</cite>, Journal of the SMPTE ( Volume: 79, Issue: 4, April 1970); SMPTE, 1970
<span class="doi">10.5594/J10714</span>
</li>

Referenced By

Specifically Designed Total-Immersion Liquid-Gate Printers [Active]
Progress Committee Report for 1970 [Active]
Wetprinting, the State of the Art [Active]
Wet Printing of Motion-Picture Films with Liquid Application on a Variable Speed Step-Optical Printer [Active]
Some thoughts on the Optics of Wet Printing [Active]