Three-Dimensional Actuator For Optical Head

Hideo Ohnuki; Yukio Fukui; Nobutaka Ohnuki; Masayuki Inoue

doi:10.1117/12.933382

27 May 1982 Three-Dimensional Actuator For Optical Head

Hideo Ohnuki, Yukio Fukui, Nobutaka Ohnuki, Masayuki Inoue

Proceedings Volume 0329, Optical Disk Technology; (1982) https://doi.org/10.1117/12.933382
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

This paper describes the design and characteristics of a three dimensional actuator for an optical readout head. In order to obtain enough servo gain, it is necessary to reduce the size and weight of the moving parts. Instead of the conventional galvano mirror, this actuator drives the objective lens, which is suspended in the collimated laser beam, towards three directions, vertical, radial and tangential, without tilting. The major advantages of this unique three dimensional actuator lie in reducing a cost of the objective lens and the number of the adjusting points.

Citation Download Citation

Hideo Ohnuki, Yukio Fukui, Nobutaka Ohnuki, and Masayuki Inoue "Three-Dimensional Actuator For Optical Head", Proc. SPIE 0329, Optical Disk Technology, (27 May 1982); https://doi.org/10.1117/12.933382

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