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Tilt Mechanism for Reducing CRT Reflection

IP.com Disclosure Number: IPCOM000050732D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Axford, JG: AUTHOR

Abstract

In order to lessen the nuisance of reflections from the front surface of a CRT display, a conventional neutral density contrast-enhancing filter having an anti-reflective coating is not bonded to the CRT surface as customary, but mounted in front of the CRT in such a way that it is independently tiltable with respect to the screen. By this means, front surface reflections from the filter can be moved out of sight by operator adjustment while those from the front surface of the CRT itself are attenuated by the neutral density filter.

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Tilt Mechanism for Reducing CRT Reflection

In order to lessen the nuisance of reflections from the front surface of a CRT display, a conventional neutral density contrast-enhancing filter having an anti- reflective coating is not bonded to the CRT surface as customary, but mounted in front of the CRT in such a way that it is independently tiltable with respect to the screen. By this means, front surface reflections from the filter can be moved out of sight by operator adjustment while those from the front surface of the CRT itself are attenuated by the neutral density filter.

A filter independently mounted in this manner is no longer constrained to conform to the convex shape of the CRT surface but may be planar or even concave, thus reducing the display catchment area from which reflection can be seen.

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