US PATENT SUBCLASS 250 / 206.2
.~.~.~ Detection of positional information in two or more planes (e.g., azimuth and elevation; hour angle and declination)

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}
206.1  DF  .~.~ Having means to generate positional information in at least one plane of a target moving relative to one or more photodetectors {1}
206.2.~.~.~ Detection of positional information in two or more planes (e.g., azimuth and elevation; hour angle and declination) {1}
206.3  DF  .~.~.~.~> With moving reticle in optical path

DEFINITION

Classification: 250/206.2

Detection of positional information in two more planes (e.g., azimuth and elevation; hour angle and declination):

(under subclass 206.1) Subject matter in which the positional information of a target moving relative to one or more photocells relates to two or more planes, e.g., azimuth and elevation, or hour angle and declination, and may be expressed in any coordinate system, e.g., Cartesian (X, Y, Z) or radial (r, theta).