JPH025116U

JPH025116U -

Info

Publication number: JPH025116U
Application number: JP8268188U
Authority: JP
Priority date: 1988-06-22
Filing date: 1988-06-22
Publication date: 1990-01-12

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の対物レンズ支持機
構を示す斜視図、第２図は第１図における−
線断面図、第３図は他の実施例の対物レンズ支持
機構を示す斜視図、第４図は従来の対物レンズア
クチユエータにおける伝達関数のゲイン特性図、
第５図は本考案実施例における同ゲイン特性図、
第６図は従来の対物レンズ支持機構を示す斜視図
である。１……対物レンズ、２……対物レンズホルダ、
３……トラツキング方向ヒンジ部、４……平行板
ばね、５，１３……支持台、１０……位置決めポ
ール、１２……ゴム、１６……支持部材。 FIG. 1 is a perspective view showing an objective lens support mechanism according to an embodiment of the present invention, and FIG.
3 is a perspective view showing an objective lens support mechanism of another embodiment, FIG. 4 is a gain characteristic diagram of a transfer function in a conventional objective lens actuator,
FIG. 5 is a gain characteristic diagram of the embodiment of the present invention.
FIG. 6 is a perspective view showing a conventional objective lens support mechanism. 1...Objective lens, 2...Objective lens holder,
3... Tracking direction hinge portion, 4... Parallel leaf spring, 5, 13... Support stand, 10... Positioning pole, 12... Rubber, 16... Support member.

Claims

[Claims for Utility Model Registration] 1. The base end of a cantilevered support member is fixed to a support base provided on the actuator base, and an objective lens holder with an objective lens attached is attached to the tip of this support member. An objective lens support mechanism, characterized in that at least a portion of the support base is made of rubber. 2. A support base is fixed to a positioning pole fixed perpendicularly to the actuator base with a shaft-hole fitting structure, the base end of a cantilevered support member is fixed to this support base, and the tip of this support member is fixed to the positioning pole vertically fixed to the actuator base. An objective lens support mechanism comprising an objective lens holder with an objective lens attached to the part thereof, wherein the support base and the positioning pole are fitted with a cylindrical rubber material interposed therebetween. Support mechanism. 3. Connect the support base to a positioning pole fixed perpendicularly to the actuator base with a shaft-hole fitting structure, fix the base end of a cantilevered support member to this support base, and An objective lens support mechanism comprising: an objective lens holder to which an objective lens is attached; the entire support base is made of rubber.