Reflexive optical screen, and viewing system incorporating...

Details Reflexive optical screen, and viewing system incorporating... Reflexive optical screen, and viewing system incorporating...

2005-11-08

2005-11-08

Tokar, Michael (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S040000, C385S047000, C385S033000, C385S084000, C385S141000, C385S088000

Reexamination Certificate

active

06963224

ABSTRACT:
The invention relates to a reflexive optical screen that can show bright images with efficiency, and a viewing system that incorporates the same, and provides a reflexive optical screen10comprising a plurality of zonal V-grooved reflecting surfaces substantially concentrically located within a given surface and having a retrorelection action. Each of the zonal V-grooved reflecting surfaces comprises mutually orthogonal two conical facets2and3in a section orthogonal to a ridgeline of a V groove, and the conical facets2and3of each of the zonal V-grooved reflecting surfaces are located such that a bisector5for angles that the two conical facets2and3make in a section of each of the zonal V-grooved reflecting surfaces is oriented in the direction of a light ray incident on a position thereof.

REFERENCES:
patent: 5960109 (1999-09-01), Shiau
patent: 6350032 (2002-02-01), Menozzi et al.
patent: 6775439 (2004-08-01), Takano et al.
patent: 6788874 (2004-09-01), Ishikawa et al.
patent: 6817719 (2004-11-01), Rudolph et al.
patent: 6827458 (2004-12-01), Suga
patent: 60-064302 (1985-04-01), None
patent: 2000-122176 (2000-04-01), None

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