Angled strut diaphragm spring

Details Angled strut diaphragm spring Angled strut diaphragm spring

1987-12-17

1989-06-20

Arnold, Bruce Y.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 45, G02B 702

Patent

active

048404578

ABSTRACT:
The inability of the lens of an optical disc recorder to focus rapidly may be the salient factor limiting the data transducing rate. In order to provide smooth motion of the focus head and to maximize its speed, a focus lens assembly for an optical disc recorder is resiliently supported by one or more diaphragm springs, and is driven by a magnetic-coil arrangement to focus light onto the optical disc. Each diaphragm spring includes inner and outer support regions connected by a plurality of resilient support arms. Each support arm has straight, parallel sides and extends nonradially.

REFERENCES:
patent: 4302830 (1981-11-01), Hamaoka et al.
patent: 4472024 (1984-09-01), Konomura et al.
patent: 4571715 (1986-02-01), Kato et al.
patent: 4616355 (1986-10-01), Kasahara

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