Film scanner with prism for scanning sprocket holes

Details Film scanner with prism for scanning sprocket holes Film scanner with prism for scanning sprocket holes

1999-03-25

2000-12-05

Mathews, Alan A.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 18, 348 97, 25055902, 352 92, H04N 5253

Patent

active

061574384

ABSTRACT:
In a film scanner comprising a device for scanning sprocket holes, a projection device is proposed, by means of which the images of two sprocket holes are projected on one sensor. This provides the possibility of scanning two facing sprocket holes with only one camera.

REFERENCES:
patent: 3578852 (1971-05-01), Aldridge
patent: 3794416 (1974-02-01), Johnston
patent: 4855836 (1989-08-01), Shearer
patent: 4875102 (1989-10-01), Poetsch
patent: 5194958 (1993-03-01), Pearman et al.
patent: 5565912 (1996-10-01), Easterly et al.
patent: 5734171 (1998-03-01), Witte

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