ASTRONOMICAL, PARTICULARLY SOLAR AND/OR LUNAR, GONIOMETRIC INDICATOR

An astronomical, particularly solar and/or lunar, gonionetric indicator comprising a reflecting member (1; 16; 20) having at least one planar surface scored with substantially circular and concentric microgrooves, wherein the width and the depth of each microgroove and the distance between adjacent...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LUCARINI, CESARE, CATAMO, MARIO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY GYROSCOPIC INSTRUMENTS HOLOGRAPHY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHOTOGRAPHY PHYSICS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	An astronomical, particularly solar and/or lunar, gonionetric indicator comprising a reflecting member (1; 16; 20) having at least one planar surface scored with substantially circular and concentric microgrooves, wherein the width and the depth of each microgroove and the distance between adjacent microgrooves are adapted to let a diametral line of diffracted and/or reflected light appear when said at least one planar surface is illuminated by a light source, said reflecting member (1; 16; 20) having at least one orientation line (2, 17) that is radial with respect to said microgrooves. L'invention concerne un indicateur astronomique, notamment solaire et/ou lunaire, goniométrique comprenant un élément réfléchissant (1, 16, 20) pourvu d'au moins une surface plane rayée de microrainures pratiquement circulaires et concentriques, la largeur et la profondeur de chaque microrainure et la distance entre des microrainures adjacentes étant adaptées pour laisser une ligne diamétrale de lumière diffractée et/ou réfléchie apparaître, lorsqu'au moins une surface plane est éclairée par une source de lumière. L'élément réfléchissant (1, 16, 20) possède au moins une ligne d'orientation (2, 7) disposée radialement par rapport auxdites microrainures.