US PATENT SUBCLASS 356 / 4.07
.~.~ Of intensity proportional to distance


Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

3  DF  RANGE OR REMOTE DISTANCE FINDING {9}
4.01  DF  .~ With photodetection {11}
4.07.~.~ Of intensity proportional to distance


DEFINITION

Classification: 356/4.07

Of intensity proportional to distance:

(under subclass 4.01) Subject matter that includes a measure of the relative intensity of the received focused target image from which distance may be determined by the fact that intensity varies by the inverse square of the distance or the like.