JPS63193215U - - Google Patents
Info
- Publication number
- JPS63193215U JPS63193215U JP8125487U JP8125487U JPS63193215U JP S63193215 U JPS63193215 U JP S63193215U JP 8125487 U JP8125487 U JP 8125487U JP 8125487 U JP8125487 U JP 8125487U JP S63193215 U JPS63193215 U JP S63193215U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- light beam
- photodetector
- medium
- base
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Head (AREA)
Description
第１図はこの考案の一実施例の要部側断面図、
第２図、第３図はそれぞれ第１の−線および
−線に沿う平面での断面図、第４図は従来の
光学式ヘツドの概略斜視図である。
１…光源、３…筐体、４…アクチユエータ、５
…対物レンズ、６…媒体、７…光検出器、８…ベ
ース、９…磁性部材、１０…磁石。なお、各図中
、同一符号は同一又は相当部分を示す。
FIG. 1 is a side sectional view of the main part of an embodiment of this invention.
2 and 3 are sectional views taken along the first - line and - line, respectively, and FIG. 4 is a schematic perspective view of a conventional optical head. 1... Light source, 3... Housing, 4... Actuator, 5
...Objective lens, 6...Medium, 7...Photodetector, 8...Base, 9...Magnetic member, 10...Magnet. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
集光する対物レンズと、この対物レンズを駆動す
るアクチユエータと、前記光束を前記対物レンズ
へ導く光学手段と、前記媒体からの反射光束を受
光し再生信号および制御信号を得るための光検出
器と、この光検出器を取付けるベースと、光学部
品を収納し前記ベースを取付ける筐体とを備えた
光学式ヘツドにおいて、前記筐体および前記ベー
スの一方に設けられた磁石と、他方に設けられ前
記磁石に吸引される磁性部材とを備えてなること
を特徴とする光学式ヘツド。 A light source, an objective lens that optically focuses a light beam from the light source onto a medium, an actuator that drives the objective lens, an optical means that guides the light beam to the objective lens, and receives a reflected light beam from the medium. An optical head comprising: a photodetector for obtaining reproduction signals and control signals; a base for mounting the photodetector; and a casing for storing optical components and mounting the base; 1. An optical head comprising: a magnet provided on one side of the head; and a magnetic member provided on the other side and attracted to the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125487U JPS63193215U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125487U JPS63193215U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63193215U true JPS63193215U (en) | 1988-12-13 |
Family
ID=30932826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8125487U Pending JPS63193215U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63193215U (en) |
-
1987
- 1987-05-29 JP JP8125487U patent/JPS63193215U/ja active Pending