US PATENT SUBCLASS 353 / 5
MAPPING OR AERIAL PHOTOGRAPH RECTIFYING


Current as of: June, 1999
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353 /   HD   OPTICS: IMAGE PROJECTORS

5MAPPING OR AERIAL PHOTOGRAPH RECTIFYING {1}
6  DF  .~> Stereoscopic


DEFINITION

Classification: 353/5

(under the class definition) Subject matter wherein the projection system is especially adapted to project an image (usually an aerial photograph of the terrain) on a surface for making a map, or to compensate for the orientation of the camera which produced the aerial photograph being projected, or to align or superimpose parts of such aerial photographs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1, for projection of a map or projection of a target or spot

light on a map.

SEE OR SEARCH CLASS

33, Geometrical Instruments,

1, for similar subject matter combined with measuring means and subclasses 20.1+ for similar subject matter combined with a claimed scribing or tracing means. 250, Radiant Energy, for similar subject matter employing photocells.

348, Television,

144+, for television systems in which images of maps may be projected to effect a comparison of the maps.

356, Optics: Measuring and Testing,

391+, for projecting images of maps to compare them.