Browse Prior Art Database

Improved Illumination For Text In A Typewriter

IP.com Disclosure Number: IPCOM000048827D
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Brown, CG: AUTHOR [+2]

Abstract

In an effort to reduce sound emissions from a typewriter, sound hoods and visors have been implemented to enclose the top opening of a typewriter but at a sacrifice of illumination and visibility of the writing line. By the incorporation of a lens 10 into the sound hood such that it extends between the typewriter cover 12 and the glare visor 14 and extends substantially completely across the writing line of the typewriter, ambient light is collected by lens 10 and focused onto the writing line in region 16, thereby giving the appearance of enhanced illumination in that region. The lens 10 further aids by providing magnification of any images printed in region 16, thus aiding the visibility by the viewer 18 of the writing line.

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Improved Illumination For Text In A Typewriter

In an effort to reduce sound emissions from a typewriter, sound hoods and visors have been implemented to enclose the top opening of a typewriter but at a sacrifice of illumination and visibility of the writing line. By the incorporation of a lens 10 into the sound hood such that it extends between the typewriter cover 12 and the glare visor 14 and extends substantially completely across the writing line of the typewriter, ambient light is collected by lens 10 and focused onto the writing line in region 16, thereby giving the appearance of enhanced illumination in that region. The lens 10 further aids by providing magnification of any images printed in region 16, thus aiding the visibility by the viewer 18 of the writing line.

The accessibility to type element 20 is substantially identical to that of other sound hoods and is, therefore, not impaired. The sound hood may be implemented in such a way as to restrict access to the opening as well as to seal the region above the platen 22, if desired.

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