Browse Prior Art Database

Fiber Optic Light Source

IP.com Disclosure Number: IPCOM000089287D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Loiselle, JT: AUTHOR

Abstract

A fiber-optic light source is specially tailored to focus light onto paper located on a curved platen.

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Fiber Optic Light Source

A fiber-optic light source is specially tailored to focus light onto paper located on a curved platen.

A lamp is located within housing 11, and light emitted therefrom is transmitted through two fiber-optic bundles 13 and 15. Each of the fiber-optic bundles is fanned out into a linear array 17, with the other end being coupled to the light source. Two cylindrical lenses 19 and 21 are placed between the end of the fiber array and the paper 23 mounted on platen 25. The lenses serve to integrate the light emitting from the array and focus it onto the paper. The curving of the bundle at 17 prevents the light from being distorted, as it would be if projected from a uniform source onto the curved platen. The light reflected from the paper 23 is transmitted through lens 26 to a linear diode array 27 for sensing purposes.

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