Browse Prior Art Database

LINEAR REVERTING LENS

IP.com Disclosure Number: IPCOM000023936D
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 415K

Publishing Venue

Xerox Disclosure Journal

Abstract

A linear lens consists of a linear array of small imaging elements. Each element images a small area of the object, and images of adjacent elements form a continuous linear image as long as the array and as wide as the image of one of the elements. Contiguous pixels in the object must be contiguous at the image whe0n imaged by different elements. Since a simple lens rotates an image 180 contiguous pixels in the object will not be contiguous when imaged by adja-ent simple lenses. In the linear direction, the image must be rotated another 180 so that the images formed by adjacent elements will form a long, continuous image.

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XEROX DISCLOSURE JOURNAL

LINEAR REVERTING LENS

P. Brueggemann

F/G2

OBJECT

Proposed Classification
U.S. CL 350/175

Int. CI. G02b 3/00

1CAL AX~~

A linear lens consists of a linear array of small imaging elements. Each element images a small area of the object, and images of adjacent elements form a continuous linear image as long as the array and as wide as the image of one of the elements. Contiguous pixels in the object must be contiguous at the image whe

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6

FIGI

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OPTICAL AX~S

2

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Volume 4 Number 2 March/April 1979 255

                                                   0n imaged by different elements. Since a simple lens rotates an image 180 contiguous pixels in the object will not be contiguous when imaged by adja~ent simple lenses. In the linear direction, the image must be rotated another 180 so that the images formed by adjacent elements will form a long, continuous image.

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LINEAR REVERTING LENS (Cont~d)

In the narrow direction, 90~to the linear direction, rotation requirements may be different depending on how the image is to be useth If the image generates a negative copy from which a positive is to b~emade for viewing, the image in the narrow direction is also rotatede, another 180 , so that the image in both directions has been rotated a total of 360 If the image generates a positive copy for direct viewing~the image in the narrow direction is no~rotated so that the image in the linear direction has been rotated a total of 360 , but in the narrow direction only 180 . A total rotation of 360 in both directions can be obtained by putting two lenses in series, the first one forming an image of the object and the second one forming another image of the fir...