US PATENT SUBCLASS 250 / 227.12
.~.~.~ Optical delay line

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

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
216  DF  .~ Optical or pre-photocell system {11}
227.11  DF  .~.~ Light conductor {14}
227.12.~.~.~ Optical delay line

DEFINITION

Classification: 250/227.12

Optical delay line:

(under subclass 227.11) Subject matter where the light conductor is used to decrease the speed of a light pulse directed toward a photodetector.

(1) Note. Typically, light pulses are directed through a light conductor in which the speed of light is slower than through air or vacuum. The arrival of a pulse going through the light conductor is delayed from the time it would have arrived had it travelled directly through air or vacuum.