G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 1/00 (2006.01) G01C 3/32 (2006.01) G01N 21/25 (2006.01) G01T 1/29 (2006.01) G03B 13/00 (2006.01)
Patent
CA 2437889
An astronomical, particularly solar and/or lunar, goniometric 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 graphic sign (2, 17).
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.
Catamo Mario
Lucarini Cesare
G. Ronald Bell & Associates
Universita Degli Studi Di Roma "la Sapienza"
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