JPH01121124U - - Google Patents
Info
- Publication number
- JPH01121124U JPH01121124U JP1375988U JP1375988U JPH01121124U JP H01121124 U JPH01121124 U JP H01121124U JP 1375988 U JP1375988 U JP 1375988U JP 1375988 U JP1375988 U JP 1375988U JP H01121124 U JPH01121124 U JP H01121124U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- carriage
- control mechanism
- tilt control
- recording surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示す概略斜視図、
第２図は変位センサの一例を示す構成図、第３図
Ａ〜Ｃは第２図の動作説明図、第４図は本考案の
他の実施例を示す概略斜視図、第５図〜第７図は
従来例を示す概略構成図である。
主要部分の符号の説明、１……ピツクアツプ、
３……キヤリツジ、４……対物レンズ、７……担
持部材、９，１４……モータ、２０……変位セン
サ、２１……フオーカスアクチユエータ、２４…
…遮蔽板、２５……発光素子、２６ａ，２６ｂ…
…受光素子、２７……差動アンプ。
FIG. 1 is a schematic perspective view showing an embodiment of the present invention;
FIG. 2 is a configuration diagram showing an example of a displacement sensor, FIGS. 3A to 3C are explanatory diagrams of the operation of FIG. 2, FIG. 4 is a schematic perspective view showing another embodiment of the present invention, and FIGS. FIG. 7 is a schematic configuration diagram showing a conventional example. Explanation of the symbols of the main parts, 1... Pick up,
3... Carriage, 4... Objective lens, 7... Supporting member, 9, 14... Motor, 20... Displacement sensor, 21... Focus actuator, 24...
...shielding plate, 25... light emitting element, 26a, 26b...
...Photodetector, 27...Differential amplifier.
Claims (1)
ピツクアツプから発せられる情報検出用光ビーム
の光軸が情報記録デイスクの情報記録面に対して
直角になるように制御するチルト制御機構であつ
て、前記キヤリツジに対して前記情報記録面に垂
直な方向において移動若しくは揺動可能に結合し
かつ前記ピツクアツプを前記光軸上の支点を中心
に回動可能に担持した担持部材と、前記情報記録
面と前記ピツクアツプとの離間距離に応じて前記
担持部材を前記キヤリツジに対して移動若しくは
揺動せしめる第１の駆動手段と、前記情報記録面
に対する前記光軸の傾き角に応じて前記ピツクア
ツプを前記担持部材に対して回動せしめる第２の
駆動手段とを備えたことを特徴とするチルト制御
機構。 A tilt control mechanism that controls the optical axis of an information detection light beam emitted from an optical pickup carried by a linearly movable carriage to be perpendicular to an information recording surface of an information recording disk, the carriage a supporting member coupled to the information recording surface so as to be movable or swingable in a direction perpendicular to the information recording surface and supporting the pickup rotatably about a fulcrum on the optical axis; a first driving means for moving or swinging the supporting member relative to the carriage according to the distance between the pick-up and the carriage; A tilt control mechanism comprising: a second drive means for rotating the tilt control mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988013759U JPH0624012Y2 (en) | 1988-02-04 | 1988-02-04 | Tilt control mechanism |
| US07/293,779 US5124973A (en) | 1988-02-04 | 1989-01-04 | Tilt control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988013759U JPH0624012Y2 (en) | 1988-02-04 | 1988-02-04 | Tilt control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01121124U true JPH01121124U (en) | 1989-08-16 |
| JPH0624012Y2 JPH0624012Y2 (en) | 1994-06-22 |
Family
ID=31224345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988013759U Expired - Lifetime JPH0624012Y2 (en) | 1988-02-04 | 1988-02-04 | Tilt control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624012Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2699063C (en) | 2007-09-28 | 2015-11-24 | Wabtec Holding Corp. | Electric swing plug door operator with auxiliary door locking mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624013U (en) * | 1992-06-30 | 1994-03-29 | 株式会社ダイケン | A fence pillar that can appear and disappear freely on the ground |
-
1988
- 1988-02-04 JP JP1988013759U patent/JPH0624012Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624013U (en) * | 1992-06-30 | 1994-03-29 | 株式会社ダイケン | A fence pillar that can appear and disappear freely on the ground |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624012Y2 (en) | 1994-06-22 |
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