US PATENT SUBCLASS 396 / 91
.~ Lens characteristic compensating

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
91.~ Lens characteristic compensating {3}
92  DF  .~.~> By selecting effective photoelements
93  DF  .~.~> By modifying electric focus or drive signal
94  DF  .~.~> With mechanical rangefinder

DEFINITION

Classification: 396/91

Lens characteristic compensating:

(under subclass 89) Subject matter having means to correct the focusing or rangefinding means according to a condition (e.g., optical aberration, full open aperture, etc.) of the exposure objective.

SEE OR SEARCH THIS CLASS, SUBCLASS:

, FOR 814, for a foreign art collection involving rangefinder adjustably coupled with focusing to compensate for change of camera lens.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

637, for path length or aberration correcting element in dividing, combining, or plural image forming, etc.