US PATENT SUBCLASS 396 / 569
.~.~ Transmittivity/reflectivity of photographic medium sensing

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

564  DF  FLUID-TREATING APPARATUS {18}
567  DF  .~ Photographic medium or cartridge sensing {2}
569.~.~ Transmittivity/reflectivity of photographic medium sensing

DEFINITION

Classification: 396/569

Transmittivity/reflectivity of photos:graphic medium sensing:

(under subclass 567) Subject matter having means to project light onto or through a photos:graphic medium and a detecting photoresponsive device which determines the density of the photos:graphic medium or the extent of development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

563, for sensitometry which may include a subsequent density determination.