JPH0420616U

JPH0420616U -

Info

Publication number: JPH0420616U
Application number: JP6015190U
Authority: JP
Priority date: 1990-06-08
Filing date: 1990-06-08
Publication date: 1992-02-20
Anticipated expiration: 2005-06-08
Also published as: JP2550809Y2

Description

[Brief explanation of the drawing]

第１図〜第１０図は本考案の実施例を示してお
り、第１図は実施例に係る光学的記録装置の概略
部分斜視図、第２図は第１図の−面断面図、
第３図は第１図の−面断面図、第４図は第１
図において光学ヘツドとバネ材を省略した状態の
光学的記録装置の概略部分斜視図、第５図はこの
装置の構成部材であるキヤリツジと直線軸受の斜
視図、第６図は実施例において適用されたバネ材
の平面図、第７図は実施例に係る光学的記録装置
の概略全体斜視図、第８図は第７図の−面断
面の簡略図、第９図は第８図の部分拡大図、第１
０図は変形例に係る光学的記録装置の概略部分全
体図を示しており、また、第１１図〜第１９図は
従来例を示しており、第１１図は従来の光学的記
録装置の構成説明図、第１２図Ａは組込まれた光
記録媒体の斜視図、第１２図Ｂは第１２図ＡのＢ
−Ｂ面断面図、第１３図〜第１４図は従来の光学
的記録装置の部分斜視図、第１５図は第１４図の
−面断面図、第１６図は光学ヘツドの浮
動量と光記録媒体との関係を示す説明図、第１７
図は第１６図の部分拡大図、第１８図は光記録媒
体の周速（ｍ／ｓ）と光学ヘツドの浮動量（μｍ
）との関係を示したグラフ図、第１９図は拡散レ
ンズを組込んだ従来の光学的記録装置の構成説明
図を夫々示す。符号説明、１……光デイスク、２……可動体、
３……バネ材、４……光学ヘツド、５……駆動部
、５１……直線軸受。 1 to 10 show an embodiment of the present invention, in which FIG. 1 is a schematic partial perspective view of an optical recording device according to the embodiment, FIG. 2 is a cross-sectional view along the - plane of FIG.
Figure 3 is a cross-sectional view of Figure 1, and Figure 4 is a cross-sectional view of Figure 1.
A schematic partial perspective view of an optical recording device with the optical head and spring material omitted in the figure, FIG. 5 is a perspective view of a carriage and a linear bearing that are the constituent members of this device, and FIG. FIG. 7 is a schematic overall perspective view of the optical recording device according to the embodiment, FIG. 8 is a simplified cross-sectional view of FIG. Figure, 1st
0 shows a schematic partial overall view of an optical recording device according to a modified example, and FIGS. 11 to 19 show a conventional example, and FIG. 11 shows the configuration of a conventional optical recording device. Explanatory drawings, FIG. 12A is a perspective view of the incorporated optical recording medium, and FIG. 12B is B of FIG. 12A.
13 to 14 are partial perspective views of a conventional optical recording device. FIG. 15 is a sectional view of FIG. Explanatory diagram showing the relationship with the medium, No. 17
The figure is a partially enlarged view of Fig. 16, and Fig. 18 shows the circumferential speed of the optical recording medium (m/s) and the floating amount of the optical head (μm).
), and FIG. 19 is a diagram illustrating the configuration of a conventional optical recording device incorporating a diffusion lens. Code explanation, 1... Optical disk, 2... Movable body,
3... Spring material, 4... Optical head, 5... Drive section, 51... Linear bearing.

Claims

[Claims for Utility Model Registration] (1) A movable body disposed near a rotating optical recording medium and guided by a guide member to move in the radial direction of the optical recording medium, and an elastic support for this movable body. an optical recording device, comprising: an optical head that is mounted through a material, floats due to airflow accompanying the rotation of the optical recording medium, and converges a beam from a light source onto a convergence surface of the optical recording medium; An optical recording device characterized in that the distance from the surface of the optical recording medium has a gradient that becomes narrower continuously from the inner circumferential side toward the outer circumferential side. (2) The optical recording device according to claim 1, wherein the inclination angle of the guide member changes depending on the set rotational speed of the optical recording medium.