US PATENT SUBCLASS 250 / 208.2
.~.~ Plural photosensitive nonimage detecting elements

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
206  DF  .~ Photocell controlled circuit {9}
208.2.~.~ Plural photosensitive nonimage detecting elements {4}
208.3  DF  .~.~.~> With electronic scanning
208.4  DF  .~.~.~> Used to switch an electrical circuit or device on or off
208.5  DF  .~.~.~> With photodetector output ratioing other than by bridge or push-pull circuits
208.6  DF  .~.~.~> With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element)

DEFINITION

Classification: 250/208.2

Plural photosensitive nonimage detecting elements:

(under subclass 206) Subject matter having plural photocells structured or arranged so that they collectively do not detect or generate a picture image signal of an object from which light is detected by the photocells.