US PATENT SUBCLASS 430 / 396
EFFECTING FRONTAL RADIATION MODIFICATION DURING EXPOSURE, E,G., SCREENING, MASKING, STENCILING, ETC.

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

396EFFECTING FRONTAL RADIATION MODIFICATION DURING EXPOSURE, E,G., SCREENING, MASKING, STENCILING, ETC. {1}
397  DF  .~> Involving motion during exposure, e.g., dodging, etc.

DEFINITION

Classification: 430/396

EFFECTING FRONTAL RADIATION MODIFICATION DURING EXPOSURE, E.G., SCREENING, MASKING, STENCILING, ETC.:

(under the class definition) Processes employing some means interposed between the radiation source and the image receiver which changes the quantity or quality of radiation reaching the receiver, e.g., a mask, stencil, screening, vignetting, etc.

(1) Note. Use of a diaphragm or lens are so commonplace, they are not included herein.