Frame registration

Details Frame registration Frame registration

1995-09-18

1996-08-06

Gellner, Michael L.

Optics: motion pictures

Camera and/or projector drive mechanisms

With continuous feed and intermittent film arresting means

352232, 352 44, G03B 100

Patent

active

055438695

ABSTRACT:
Systems are described for precisely positioning motion picture film frames at a camera film gate by the use of registration pins that project into film perforations, where the film frames are spaced by 2.5 perforation spacings, or perf spacings instead of the standard 4 perforations. In one system, the film is advanced a first time in steps of 5 perf spacings each to photograph alternate perf spacings film frames, (that are spaced by 2.5 perf spacings) perf spacings with the film gate mask being offset by 0.5 during a second pass when the film is advanced in steps of 5 perf. spacings each. In another system, the registration mechanism includes two sets of registration pins which are alternately projected into alternate film frames as the film is advanced in steps of 2.5 perf spacings. In another system, additional holes are punched into the standard film stock, so there are holes or perforations located at 2.5 perf. spacings along the length of the film.

REFERENCES:
patent: 1255288 (1918-02-01), Brixey
patent: 1797274 (1931-03-01), Ross
patent: 1819541 (1931-08-01), Carleton
patent: 2375962 (1945-05-01), Terwilliger
patent: 3502411 (1970-03-01), Wells
patent: 3637297 (1972-01-01), Yoshida
patent: 3682540 (1972-08-01), Oxberry et al.
patent: 4534630 (1985-08-01), Williamson
patent: 5328073 (1994-07-01), Blanding et al.

Affiliated with

Also associated with

Rating

Frame registration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frame registration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frame registration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2194521