US PATENT SUBCLASS 361 / 174
.~.~.~.~ Light sensor controls its light path

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
170  DF  .~.~ Condition responsive (e.g., external circuit condition) {9}
173  DF  .~.~.~ Light {3}
174.~.~.~.~ Light sensor controls its light path

DEFINITION

Classification: 361/174

Light sensor controls its light path:

(under subclass 173) Subject matter wherein the light sensor controls its own optical system, by which it is illuminated.