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METHOD OF MANUFACTURING ROTARY SCALE, ROTARY SCALE, ROTARY ENCODER, DRIVING APPARATUS, IMAGE PICKUP APPARATUS AND ROBOT APPARATUS | VERFAHREN ZUR HERSTELLUNG EINER DREHBAREN SKALA, DREHBARE SKALA, DREHGEBER, ANSTEUERUNGSVORRICHTUNG, BILDAUFNAHMEVORRICHTUNG UND ROBOTERVORRICHTUNG | PROCÉDÉ DE FABRICATION D'ÉCHELLE ROTATIVE, ÉCHELLE ROTATIVE, CODEUR ROTATIF, APPAREIL D'ENTRAÎNEMENT, APPAREIL DE CAPTURE D'IMAGE ET APPAREIL ROBOTISÉ

Patentnummer:EP3048427B1
IPC Hauptklasse:G01D0005347
Anmelder:
Erfinder:Igaki, Masahiko (0)
; c/o Canon Kabushiki Kaisha, 30-2, Shimomaruko 3-chome, ; Ohta-ku, Tokyo, JP
Anmeldung:04.12.15
Offenlegung:26.01.15
Patenterteilung:27.03.19

Abstract / Hauptanspruch
A method of manufacturing a rotary scale (2) to be fixed to a rotating shaft of a rotating member includes a first step (71) of forming, on a scale substrate, a scale pattern (8) and a mark (11) indicating an outer shape of the rotating shaft positioned such that a center axis of the rotating shaft coincides with a center axis of the scale pattern, a second step (72) of cutting a first area (12, 13, and 14) of the scale substrate including the mark and having a first width, and a third step (73) of cutting a second area (31 and 35) including the mark that remains after the cutting of the first area, having a length in a circumferential direction of the scale substrate shorter than that in the first area and having a second width narrower than the first width.

EP3048427B1


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