JPS6332315U - - Google Patents
Info
- Publication number
- JPS6332315U JPS6332315U JP12332286U JP12332286U JPS6332315U JP S6332315 U JPS6332315 U JP S6332315U JP 12332286 U JP12332286 U JP 12332286U JP 12332286 U JP12332286 U JP 12332286U JP S6332315 U JPS6332315 U JP S6332315U
- Authority
- JP
- Japan
- Prior art keywords
- polarized light
- light beam
- optical disk
- beam splitter
- polarization
- 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 10
- 230000010287 polarization Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 206010041662 Splinter Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は本考案の一実施例の構成図、第２図ａ
は偏光偏変器にλ／２板を用いて、Ｐ偏光をその
まま透過することを示した説明図、第２図ｂは偏
光偏換器にλ／２板を用いてＰ偏光をＳ偏光にす
ることを示した説明図、第３図は本考案の他の実
施例の構成図である。
１…光源部、２…ピツクアツプ部、３…光デイ
スク面、４…ガイド、５…偏光変換器、６…偏光
ビームスプリンタ、７…検出部、８…ミラー、９
…λ／４板、１１…速い軸、１２…遅い軸、１３
，１５…Ｐ偏光、１４…Ｓ偏光、１６…λ／２板
。
Figure 1 is a configuration diagram of an embodiment of the present invention, Figure 2 a
is an explanatory diagram showing that P-polarized light is transmitted as is by using a λ/2 plate as a polarization polarizer, and Figure 2b is an explanatory diagram showing that P-polarized light is converted into S-polarized light by using a λ/2 plate as a polarization polarizer. FIG. 3 is a block diagram of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Light source part, 2...Pickup part, 3...Optical disk surface, 4...Guide, 5...Polarization converter, 6...Polarization beam splinter, 7...Detection part, 8...Mirror, 9
...λ/4 plate, 11...Fast axis, 12...Slow axis, 13
, 15...P polarized light, 14...S polarized light, 16...λ/2 plate.
Claims (1)
を記録するか、あるいは前記光デイスク上の信号
を再生する光デイスク装置において、直線偏光の
光ビームを発生する光源部と、前記光ビームの偏
光をＰ偏光またはＳ偏光に切り換えをする偏光変
換器と、Ｓ偏光の光ビームを反射するための偏光
ビームスプリツタと、前記偏光変換器と前記偏光
ビームスプリツタを１組として前記光ビームの出
射方向へ複数組設けて、前記偏光ビームスプリツ
タにより反射した光ビームを前記光デイスク面に
集光するための対物レンズと、前記光デイスク面
から前記偏光ビームスプリツタに戻る光ビームを
Ｐ偏光にするためのλ／４板と、前記光デイスク
面から前記偏光ビームスプリツタを透過した光ビ
ームを受光するための検出器を設けたことを特徴
とする積層光デイスク装置。 An optical disk device that stacks optical disks and records signals on the optical disks or reproduces signals on the optical disks includes a light source section that generates a linearly polarized light beam, and a light source section that generates a linearly polarized light beam, and a light source section that generates a linearly polarized light beam; a polarization converter for switching to P-polarized light or S-polarized light; a polarization beam splitter for reflecting the S-polarized light beam; and a pair of the polarization converter and the polarization beam splitter, and a direction in which the light beam is emitted. and an objective lens for condensing the light beam reflected by the polarizing beam splitter onto the optical disk surface, and converting the light beam returning from the optical disk surface to the polarizing beam splitter into P-polarized light. 1. A laminated optical disk device comprising: a λ/4 plate for transmitting the optical disc; and a detector for receiving the light beam transmitted from the optical disk surface through the polarizing beam splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12332286U JPS6332315U (en) | 1986-08-13 | 1986-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12332286U JPS6332315U (en) | 1986-08-13 | 1986-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6332315U true JPS6332315U (en) | 1988-03-02 |
Family
ID=31014318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12332286U Pending JPS6332315U (en) | 1986-08-13 | 1986-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042894U (en) * | 1983-09-02 | 1985-03-26 | 不二サッシ株式会社 | Double-opening steel door combination structure |
-
1986
- 1986-08-13 JP JP12332286U patent/JPS6332315U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042894U (en) * | 1983-09-02 | 1985-03-26 | 不二サッシ株式会社 | Double-opening steel door combination structure |
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