Browse Prior Art Database

WIDE ANGLE ADD LENS REDUCTION SYSTEMS

IP.com Disclosure Number: IPCOM000024064D
Original Publication Date: 1979-Aug-31
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

The current state of the art of imaging systems provides two general methods of varying image size. One is to vary the overall object to image distance and move the (fixed focal length) lens to obtain sharp imagery. The second is to keep the overall object to image distance fixed and vary the focal length (and position) of the lens to provide sharp imagery.