MOIRE FRINGE OPTICAL DISPLAY AND PROJECTION EQUIPMENT

Optical display or projection equipment, using Moire fringes to create moving or animated effects. A transparent sheet carrying special diagrams is superimposed over a moving transparent belt, having a graticule of close parallel lines. The sheet and belt are formed of flexible plastics material. Th...

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Bibliographische Detailangaben
Hauptverfasser:	HENDERSON, DAVID A.W, CRAWFORD, BRIAN T
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR ADVERTISING APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY CRYPTOGRAPHY DECORATIVE ARTS DISPLAY DISPLAYING EDUCATION ELECTROGRAPHY HOLOGRAPHY LABELS OR NAME-PLATES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SEALS SIGNS SPECIAL DESIGNS OR PICTURES TRANSPORTING
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Beschreibung
Zusammenfassung:	Optical display or projection equipment, using Moire fringes to create moving or animated effects. A transparent sheet carrying special diagrams is superimposed over a moving transparent belt, having a graticule of close parallel lines. The sheet and belt are formed of flexible plastics material. The sheet diagram may be constructed by cutting out sections from a "kit" of pre-printed sheets, and a plurality of sheets may be pivotally attached to a cardboard frame, to build up a complete diagram in successive stages. The apparatus may also include a projector with winding means to convey the belt either from one roller to another roller, across the optical axis, or in a continuous closed loop.