US PATENT SUBCLASS 355 / 67
.~ Illumination systems or details

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

18  DF  PROJECTION PRINTING AND COPYING CAMERAS {27}
67.~ Illumination systems or details {4}
68  DF  .~.~> Including photocell or phototube
69  DF  .~.~> Electricity to lamp controlled
70  DF  .~.~> Plural lamps
71  DF  .~.~> Including shutter, diaphragm, polarizer or filter

DEFINITION

Classification: 355/67

(under subclass 18) Subject matter including a plural or particular light source, or means such as a reflector, condenser lens or diffusing plate to direct light from the source to the original, or means to control the intensity or time interval of light reaching the photosensitive paper, or means to regulate the contrast or relative brightness of one portion of a picture or margin with another portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30, for a copier including means to cool or ventilate the lamp housing.

35+, for illumination system for copying multicolor pictures.

74, for adjustable masks over the photosensitive paper.

113+, for light bores for contact printers.

SEE OR SEARCH CLASS 352, Optics: Motion Pictures, appropriate subclasses, especially

198+, for light sources utilized in motion picture apparatus.

362, Illumination,

3, for photos:graphic lights where no other camera structure is claimed.