US PATENT SUBCLASS 362 / 280
.~.~ In plane, or extension of modifying surface

Current as of: June, 1999
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362 /   HD   ILLUMINATION

257  DF  LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER {18}
277  DF  .~ Adjustable or repositionable modifier {4}
280.~.~ In plane, or extension of modifying surface {1}
281  DF  .~.~.~> Plural, relatively movable

DEFINITION

Classification: 362/280

(under subclass 277) Subject matter wherein the illuminated surface of the modifier is planar or a surface of revolution generated by the rotation of a straight or curved line generatrix about an axis and (a) if planar, the modifier is movable such that the illuminated surface moves only in its own plane, or (b) if curved, the modifier is movable such that the illuminated surface is rotated about the axis of its generatrix.