Browse Prior Art Database

Image Reduction or Magnification

IP.com Disclosure Number: IPCOM000088182D
Original Publication Date: 1977-May-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 71K

Publishing Venue

IBM

Related People

Bacon, JL: AUTHOR [+2]

Abstract

A system is illustrated in Fig. 1 which reduces or magnifies images of an original 10 to be reproduced by printer 11 as copy 12. The system includes a scanner image source 13, a lens turret 14 and a linear scan array 15. The image source 13 may be a light and mirror arrangement to produce a line image of the original 10 and scan in the direction of arrow 16. The line image is focused by a selected one of several lenses in turret 14 onto linear scan array 15. The lens selected either reduces, magnifies or produces a normal image. The scan array 15 converts the image to data which is supplied to printer 11 to form copy 12.

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Image Reduction or Magnification

A system is illustrated in Fig. 1 which reduces or magnifies images of an original 10 to be reproduced by printer 11 as copy 12. The system includes a scanner image source 13, a lens turret 14 and a linear scan array 15. The image source 13 may be a light and mirror arrangement to produce a line image of the original 10 and scan in the direction of arrow 16. The line image is focused by a selected one of several lenses in turret 14 onto linear scan array 15. The lens selected either reduces, magnifies or produces a normal image. The scan array 15 converts the image to data which is supplied to printer 11 to form copy 12.

In Fig. 2A, a normal lens is used to focus a normal page image 17 on scan array 15 so that printer 11 produces a normal output 18. In Fig. 2B, a reduction lens focuses a reduced image 19 on array 15, resulting in a reduped output 20. Alternatively, printer 11 may produce a full size image 21 of reduced resolution from the scan data. In Fig. 2C, a magnification lens focuses a portion of the enlarged image 22 on scan array 15 to print an enlarged output 23 of that portion.

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