Patent · US Expired

Device for moving and guiding a motion-picture film in a telecine scanner

US5430477A · kind A · utility

12Cited by

1References

17Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Horst Bachmann · Bochum, DE
Wolfgang Fell
Werner Maack · Seeheim-Jugenheim, DE

Key dates

Filing date	Mar 7, 1994
Grant date	Jul 4, 1995
Priority date	—
Expiry date	Mar 7, 2014

Classification

Technology area (CPC G)Physics
CPC primaryG03B1/48
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device for moving and guiding a motion-picture film through the film gate of a telecine scanner is proposed, which serves for exactly positioning a film frame. It comprises a carriage which is rectilinearly reciprocated in a guide perpendicular to the optical path of the film gate, on which carriage each film frame is immobilised during the uniform forward movement. The drive means for the carriage comprises a motor-driven cam having a sawtooth-shape with sinusoidal transitions and two latching positions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.