G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 26/10 (2006.01) G02B 5/09 (2006.01)
Patent
CA 2101420
2101420 9215038 PCTABS00015 A polygon (11) for reading and writing information, and tracking industrial products on a rotating carousel (27) is arranged so that each of its sides (12-17) behaves effectively like a mirror mounted directly on a rotation axis (10) of the polygon (11). When this polygon (11) is installed in the center of rotating carousel (27), it can perform accurate tracking of objects on the carousel (27) with a constant (fixed) rotation speed (.omega.p) equal to half of the rotational speed (.omega.c) of the carousel (27). The designs employ a polygon (11) with side mirrors (21) tilted in an arbitrary angle (.alpha.) with surrounding mirrors (opposite-side mirrors (22)) either tilted at a right angle (.beta.) or at an angle .alpha./n (where n is an integer) with respect to the tilted side mirrors (21) of the polygon (11). The designs of these polygons (11) eliminate all the unwanted effects of off-axis side mirrors which exists in standard polygons. This is done by producing an optical path that is equivalent to the optical path of the scanning mirrors so that their plane contains the rotational axis (10) of the system.
Schwartz Nira
Shahar Arie
Gowling Lafleur Henderson Llp
Schwartz Nira
Shahar Arie
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