| 摘要 |
PCT No. PCT/JP89/00894 Sec. 371 Date Apr. 20, 1990 Sec. 102(e) Date Apr. 20, 1990 PCT Filed Aug. 31, 1989 PCT Pub. No. WO90/02316 PCT Pub. Date Mar. 8, 1990.The present invention is directed to a rotary code disk mounting structure for an optical encoder. A rotary code disk (3) with no center hole is fastened to a spindle (2) by an adhesive (J) that a is put in a recess (21) formed in a mounting surface (20). The mounting surface (20) is formed on the top surface of the spindle (2) with the central portion of the backside of the rotary code disk (3) in contact with the mounting surface (20). The rotary code disk mounting structure is applied to optical encoders for use in combination with servometers, machine tools and measuring apparatuses.
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