Title:
OPTICAL PATH DEFLECTING DEVICE
Document Type and Number:
Japanese Patent JP3264404
Kind Code:
B2
Abstract:
PURPOSE: To lower a primary resonance frequency while suppressing the maximum stress of an elastic member to a value within the critical value of a spring by forming the cross-section of the central part of the member in the rotating shaft direction of the elastic member smaller than that of the terminal part in the rotating shaft direction.
CONSTITUTION: An elastic bar 13 is arranged at a micro actuator 11 instead of the elastic bar of conventional micro actuator. In such a case, the size in total length L direction and thickness T direction of the twist part 13A of the elastic bar 13 is set equal to that of a conventional twist part 3A, and the size in width W direction is decided so that the maximum stress σmax, applied to the twist part 3A can be prevented from exceeding the spring critical value when a load requested in the thickness T direction similar to the conventional twist part 3A is applied to the center part. In such a case, it is possible to suppress the maximum stress of the elastic member to the value within the spring critical value and also, to lower the primary resonance frequency.
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Inventors:
Sakiki Harayuki
Nagato Hideaki
Nagato Hideaki
Application Number:
JP35068693A
Publication Date:
March 11, 2002
Filing Date:
December 30, 1993
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G11B11/10; G11B7/09; G11B11/105; (IPC1-7): G11B11/105; G11B7/09
Domestic Patent References:
| JP5314518A | ||||
| JP2120715A | ||||
| JP1200322A | ||||
| JP63311225A | ||||
| JP345219U | ||||
| JP63174317U |
Attorney, Agent or Firm:
Keiki Tanabe