JPS6261029U - - Google Patents
Info
- Publication number
- JPS6261029U JPS6261029U JP15272285U JP15272285U JPS6261029U JP S6261029 U JPS6261029 U JP S6261029U JP 15272285 U JP15272285 U JP 15272285U JP 15272285 U JP15272285 U JP 15272285U JP S6261029 U JPS6261029 U JP S6261029U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- beams
- recording medium
- tracking control
- plane portion
- 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
- 206010041662 Splinter Diseases 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図及び第２図は本考案の第１実施例の夫々
概略的な側面図及び平面図、第３図は第２実施例
の概略的な側面図である。第３図は本考案の一従
来例の概略的な側面図である。
なお図面に用いた符号において、１１……半導
体レーザ、１２……ビーム、１７……光学デイス
ク、３０，５０……光学ヘツド、３１，５１……
ビームスプリンタ、３２，５４……平面部、であ
る。
1 and 2 are a schematic side view and a plan view, respectively, of a first embodiment of the present invention, and FIG. 3 is a schematic side view of the second embodiment. FIG. 3 is a schematic side view of a conventional example of the present invention. In addition, in the symbols used in the drawings, 11... semiconductor laser, 12... beam, 17... optical disk, 30, 50... optical head, 31, 51...
Beam splinter, 32, 54... plane part.
補正 昭６１．１．２５
図面の簡単な説明を次のように補正する。
明細書第９頁１行目の「第３図」を「第４図」
と補正します。Amendment January 25, 1981 The brief description of the drawing is amended as follows. ``Figure 3'' on page 9, line 1 of the specification is changed to ``Figure 4.''
I will correct it.
Claims (1)
る光源と、 この光源の光軸とは直交する平面部を有してお
り前記光学記録媒体へ入射させるべき前記ビーム
と前記光学記録媒体から反射されたビームとを分
離するビームスプリツタと、 前記平面部に形成されており前記光源から射出
された前記ビームを３本のビームに分割する回折
格子と、 前記３本のビームによる３個のスポツトに基づ
いてトラツキング制御を行うトラツキング制御機
構とを夫々具備する光学ヘツド。[Claims for Utility Model Registration] A light source that emits a beam that is to be incident on an optical recording medium; The light source has a plane portion perpendicular to the optical axis of the light source; a beam splitter that separates the beam reflected from the optical recording medium; a diffraction grating that is formed on the plane portion and that splits the beam emitted from the light source into three beams; and the three beams. An optical head comprising a tracking control mechanism that performs tracking control based on three spots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15272285U JPS6261029U (en) | 1985-10-05 | 1985-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15272285U JPS6261029U (en) | 1985-10-05 | 1985-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6261029U true JPS6261029U (en) | 1987-04-15 |
Family
ID=31070955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15272285U Pending JPS6261029U (en) | 1985-10-05 | 1985-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6261029U (en) |
-
1985
- 1985-10-05 JP JP15272285U patent/JPS6261029U/ja active Pending