JPS6435522U - - Google Patents
Info
- Publication number
- JPS6435522U JPS6435522U JP12834987U JP12834987U JPS6435522U JP S6435522 U JPS6435522 U JP S6435522U JP 12834987 U JP12834987 U JP 12834987U JP 12834987 U JP12834987 U JP 12834987U JP S6435522 U JPS6435522 U JP S6435522U
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- shaped recording
- disc
- recording media
- laser
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 3
Landscapes
- Optical Head (AREA)
Description
第１図は本考案に係るピツクアツプ機構の側面
図、第２図は本考案に係るピツクアツプ機構のピ
ツクアツプ部の要部断面図、第３図は従来のピツ
クアツプ機構の平面図である。
４０……半導体レーザ、４７……受光素子、４
２ａ……出射窓、４３……反射ミラー、２６ａ，
２６ｂ……対物レンズ、４４ａ，４４ｂ、４５ａ
，４５ｂ……対物レンズ移動部、２７，２８，２
９，３０……駆動手段。
FIG. 1 is a side view of a pick-up mechanism according to the present invention, FIG. 2 is a sectional view of a main part of the pick-up portion of the pick-up mechanism according to the present invention, and FIG. 3 is a plan view of a conventional pick-up mechanism. 40... Semiconductor laser, 47... Light receiving element, 4
2a... Output window, 43... Reflection mirror, 26a,
26b...Objective lens, 44a, 44b, 45a
, 45b...Objective lens moving unit, 27, 28, 2
9, 30...driving means.
Claims (1)
つ同軸に対向するよう支持して回転させる２個の
回転駆動機構と、２枚のデイスク状記録媒体間に
位置しデイスク状記録媒体の半径方向に摺動して
デイスク状記録媒体に記録されている情報を光学
的に読み取るピツクアツプ機構とを備え、 ピツクアツプ機構が、レーザ光を放出する半導
体レーザ、レーザ光を出射する出射窓及びレーザ
光を受光する受光素子を有するレーザ光出射・受
光手段と、 レーザ光出射窓から離れて位置し出射されるレ
ーザ光を２枚のデイスク状記録媒体の各情報面に
向かうよう２方向に分割する反射ミラー、反射ミ
ラーによつて分割された各レーザ光を集光する２
個の対物レンズ、対物レンズによつて集光された
焦点を前記２枚のデイスク状記録媒体のどちらか
一方の情報面に選択的に合わすべく２個の対物レ
ンズを焦点方向に連動させる対物レンズ移動部を
有するレーザ光焦点手段と、 前記レーザ光出射・受光手段及び前記レーザ光
焦点手段を摺動移動させる駆動手段とからなるこ
とを特徴とするデイスク再生装置のピツクアツプ
機構。[Claims for Utility Model Registration] Two rotary drive mechanisms that support and rotate two disc-shaped recording media so that their information surfaces are parallel and coaxially opposed, and a position between the two disc-shaped recording media. and a pick-up mechanism that slides in the radial direction of the disk-shaped recording medium to optically read information recorded on the disk-shaped recording medium, and the pick-up mechanism includes a semiconductor laser that emits laser light, a semiconductor laser that emits laser light, a laser beam emitting/receiving means having an emitting window and a light receiving element that receives the laser beam; Reflection mirror that splits into two directions, 2 that condenses each laser beam divided by the reflection mirror
an objective lens that moves the two objective lenses in the focal direction in order to selectively align the focal point condensed by the objective lens with the information surface of one of the two disc-shaped recording media; 1. A pickup mechanism for a disc playback device, comprising: a laser beam focusing means having a moving part; and a driving means for slidingly moving the laser beam emitting/receiving means and the laser beam focusing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12834987U JPS6435522U (en) | 1987-08-24 | 1987-08-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12834987U JPS6435522U (en) | 1987-08-24 | 1987-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6435522U true JPS6435522U (en) | 1989-03-03 |
Family
ID=31381607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12834987U Pending JPS6435522U (en) | 1987-08-24 | 1987-08-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6435522U (en) |
-
1987
- 1987-08-24 JP JP12834987U patent/JPS6435522U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003123307A (en) | Optical head and disk device | |
| JPS6445318U (en) | ||
| JPH01133312U (en) | ||
| JPS6435522U (en) | ||
| JP3511786B2 (en) | Optical head | |
| JPS5968842A (en) | Optical information recording and readout device | |
| JP3122475B2 (en) | Optical information recording medium | |
| JPS61140430U (en) | ||
| JPS6241119U (en) | ||
| JPH01154527U (en) | ||
| JPS61140429U (en) | ||
| JPH02183430A (en) | Optical head | |
| JPH0320819B2 (en) | ||
| JPS6198225U (en) | ||
| JPS6329226U (en) | ||
| JPH05101441A (en) | Optical disk and optical pickup | |
| JPS63153323U (en) | ||
| JPS63164846U (en) | ||
| JPH0280319U (en) | ||
| JPS61167064U (en) | ||
| JPH0193614U (en) | ||
| JPH01162109U (en) | ||
| JPS6031726U (en) | Optical pickup light receiving system member support mechanism | |
| KR19980053244A (en) | Light pick-up device | |
| JPH01121124U (en) |