US PATENT SUBCLASS 396 / 80
.~.~ Including focus/distance detecting circuit

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

72  DF  HAVING VARIABLE FOCAL LENGTH OF CAMERA OBJECTIVE {7}
79  DF  .~ Having focus operation {2}
80.~.~ Including focus/distance detecting circuit {2}
81  DF  .~.~.~> And focal length responsive memory
82  DF  .~.~.~> Focus position adjusted according to focal length

DEFINITION

Classification: 396/80

Including focus/distance detecting circuit:

(under subclass 79) Subject matter which has a circuit which produces a signal representative of a focus condition or range to an object.