Browse Prior Art Database

Antiglare and Reflection Covers for Transparent Surfaces

IP.com Disclosure Number: IPCOM000076173D
Original Publication Date: 1972-Jan-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Foster, KL: AUTHOR [+2]

Abstract

Described is the use of a sheet of pressed or stamped slats or blades over the surface to be viewed, the blades or slats being arranged in such geometry as to prevent the formation of specular images of ambient-light sources.

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Antiglare and Reflection Covers for Transparent Surfaces

Described is the use of a sheet of pressed or stamped slats or blades over the surface to be viewed, the blades or slats being arranged in such geometry as to prevent the formation of specular images of ambient-light sources.

As shown in the figure for example, a printer 1 having a paper path 2 has a generally transparent cover section 3 within an overall housing 4. A sheet 5 of the antiglare material, having the miniature slats or blades 6 therein is placed on the transparent section 3 of the cover. The angle at which the slats or blades are set determines the viewing angle. The greater the viewing angle, the greater the possibility of specular reflection. Thus, a balance can be achieved for the particular area in which the device is placed by controlling the angle of the slats to minimize reflection, while maximizing the viewing angle. The sheet of material can be made, for example, from a transparent plastic such as nylon, or a stainless steel type material in a plastic background, or of a stainless steel mesh. The potential range of visible angles for the figure is shown between the arrows indicated. The area not visible is also shown.

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