US PATENT SUBCLASS 396 / 77
.~ Automatic change of focal length

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


396 /   HD   PHOTOGRAPHY

72  DF  HAVING VARIABLE FOCAL LENGTH OF CAMERA OBJECTIVE {7}
77.~ Automatic change of focal length {1}
78  DF  .~.~> Constant image size

DEFINITION

Classification: 396/77

Automatic change of focal length:

(under subclass 72) Subject matter wherein the focal length of a camera objective is adjusted in accordance with a sensed condition without operator intervention.