Photocopying – Contact printing – Frames
Patent
1994-11-21
1996-07-09
Adams, Russell E.
Photocopying
Contact printing
Frames
355 74, G03B 2758
Patent
active
055349714
ABSTRACT:
A masking guide includes a plurality of masking frames each having a different peripheral dimension for positioning the frames concentrically one within another in a nested arrangement. Each masking frame has an aperture and the dimensions of the aperture vary from a base frame having an aperture of greatest dimension to an innermost masking frame having an aperture of the least dimension. The masking frames are positioned so that the dimensions of the apertures progressively decrease from the base frame to the innermost frame. The frames are pivotally connected one within another, permitting the frames to be raised and lowered relative to a proof. A photographic proof is positioned in underlying relation with the masking guide. The proof has a full print area which is exposed entirely through the aperture of the base frame. The remaining frames mask a selected portion of the full print area of the proof. As the masking frames are progressively moved into a position overlying the proof to expose the proof through each masking frame, a percentage of the print area is excluded from exposure through the aperture. Each masking frame corresponds to a negative mounting card having an aperture exposing the same print area or composition of the negative as the area of the proof which is exposed. Once the desired composition of a proof is selected from a masking frame, the corresponding negative mounting card is used to mount the negative.
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Adams Russell E.
Malley D. P.
Think, Inc.
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