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A GRADIENT INDEX LENS ARRAY FOR IMAGING A CURVED OBJECT ONTO A PLANAR IMAGE PLANE

IP.com Disclosure Number: IPCOM000025309D
Original Publication Date: 1984-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

Figure 1 illustrates a typical configuration for a gradient index lens array imaging system. Array 10, comprising a plurality of fibers 12 is positioned intermediate parallel object and image planes 14 and 16. In the case where the object is not planar, for example, a CRT tube face 18, shown dotted, array 10 is no longer capable of providing the proper image. Figure 2 shows a modified lens arrav 20 wherein each of the fiber lengths 21, 22 have been modified in accordance with the equation:

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

A GRADIENT INDEX LENS ARRAY FOR IMAGING A CURVED OBJECT ONTO
A PLANAR IMAGE PLANE
James D. Rees
Abbott Smith

Proposed Classification
U.S. CI. 350/96.25 Int. C1. G02b 5/17

Volume 9 Number 4 July/August 1984 757

[This page contains 1 picture or other non-text object]

Page 2 of 2

A GRADIENT INDEX LENS ARRAY FOR. IMAGING A CURVEP OBJECT ONTO A PLANAR IMAGE PLANE (Cont'd)

Figure 1 illustrates a typical configuration for a gradient index lens array imaging system. Array 10, comprising a plurality of fibers 12 is positioned intermediate parallel object and image planes 14 and 16. In the case where the object is not planar, for example, a CRT tube face 18, shown dotted, array 10 is no longer capable of providing the proper image. Figure 2 shows a modified lens arrav 20 wherein each of the fiber lengths 21, 22 have been modified in accordance with the equation:

-2 tan[?)

= L 29+ = TC nVA +L

0

Where L is the fiber length,.Q is the vertex distance, VK is the gradient constant, and no is the axial refractive index.

The final spherical form of the array is made by grindinn and polishing the unper and lower surfaces.

258 XEROX DISCLOSURE JOUP.NAL

Volume 9 Number 4 July/August 1984

[This page contains 1 picture or other non-text object]