US PATENT SUBCLASS 355 / 125
.~.~ With diffusing or masking (e.g., vignetting)

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

78  DF  CONTACT PRINTING {15}
122  DF  .~ Frames {5}
125.~.~ With diffusing or masking (e.g., vignetting) {1}
126  DF  .~.~.~> Adjustable parameters

DEFINITION

Classification: 355/125

(under subclass 122) Subject matter including structure for blocking a portion of the transverse area of the light path usually at the border, the blocking being either abrupt at the edge or gradual to produce a graduated shading effect or including structure to diffuse the light in the light path to produce a softening effect.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80, for contact printers with localized contrast modification.