JPH025112U - - Google Patents
Info
- Publication number
- JPH025112U JPH025112U JP8125688U JP8125688U JPH025112U JP H025112 U JPH025112 U JP H025112U JP 8125688 U JP8125688 U JP 8125688U JP 8125688 U JP8125688 U JP 8125688U JP H025112 U JPH025112 U JP H025112U
- Authority
- JP
- Japan
- Prior art keywords
- holder
- optical head
- diffraction grating
- pinhole
- optical
- 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 6
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Head (AREA)
Description
第１図は本考案の光学ヘツドを説明するための
説明図であり、第２図は第１図に示した反射ミラ
ーと対物レンズの関係を示す説明図である。第３
図乃至第５図は本考案のピンホールと回折格子を
一体化した光学部品を示す図であり、第３図はピ
ンホールを有するホルダーと回折格子の関係を示
す一部切欠断面図であり、第４図は、その正面図
である。第５図は回折格子を一体化したホルダー
の取付状態を示す光学ヘツドの要部断面図である
。
４……ピンホール、５……回折格子、１３……
ホルダー。
FIG. 1 is an explanatory diagram for explaining the optical head of the present invention, and FIG. 2 is an explanatory diagram showing the relationship between the reflecting mirror and the objective lens shown in FIG. 1. Third
5 to 5 are diagrams showing an optical component integrating a pinhole and a diffraction grating according to the present invention, and FIG. 3 is a partially cutaway sectional view showing the relationship between a holder having a pinhole and a diffraction grating, FIG. 4 is a front view thereof. FIG. 5 is a sectional view of the main part of the optical head showing the state in which the holder incorporating the diffraction grating is attached. 4...Pinhole, 5...Diffraction grating, 13...
holder.
Claims (1)
て記録媒体に照射し、情報信号を記録再生する光
学ヘツドにおいて、ピンホールを有するホルダー
に回折格子を一体化させるとともに、該ホルダー
を外部から回転可能に支持したことを特徴とする
光学ヘツド。 In an optical head that records and reproduces information signals by irradiating a recording medium with laser light from a semiconductor laser through optical components, a diffraction grating is integrated into a holder with a pinhole, and the holder can be rotated from the outside. An optical head characterized by supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125688U JPH025112U (en) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8125688U JPH025112U (en) | 1988-06-20 | 1988-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025112U true JPH025112U (en) | 1990-01-12 |
Family
ID=31306043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8125688U Pending JPH025112U (en) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025112U (en) |
-
1988
- 1988-06-20 JP JP8125688U patent/JPH025112U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH025112U (en) | ||
| JPS6442516U (en) | ||
| JPS636515U (en) | ||
| JPS6035323U (en) | Optical pick-up device | |
| JPS6026620U (en) | Optical pick-up device | |
| JPS61105920U (en) | ||
| JPH02123716U (en) | ||
| JPH03121521U (en) | ||
| JPH032481U (en) | ||
| JPS63193215U (en) | ||
| JPS59153625U (en) | Optical head for optical disk | |
| JPS63161424U (en) | ||
| JPS5843634U (en) | Pickup for recording and playback | |
| JPS61140434U (en) | ||
| JPH025119U (en) | ||
| JPS60189015U (en) | Reflector device in optical recording and reproducing equipment | |
| JPS61105919U (en) | ||
| JPS63153323U (en) | ||
| JPS6378312U (en) | ||
| JPH01133224U (en) | ||
| JPS6313418U (en) | ||
| JPS6222726U (en) | ||
| JPS62142726U (en) | ||
| JPH01151423U (en) | ||
| JPH0486268U (en) |