JPS60166826U - optical device - Google Patents
optical deviceInfo
- Publication number
- JPS60166826U JPS60166826U JP5377484U JP5377484U JPS60166826U JP S60166826 U JPS60166826 U JP S60166826U JP 5377484 U JP5377484 U JP 5377484U JP 5377484 U JP5377484 U JP 5377484U JP S60166826 U JPS60166826 U JP S60166826U
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- laser diode
- optical device
- exits
- facing toward
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の好適な実施例を示すものであり、第１図
は本考案の一実施例を使用した光学ヘッドの光学系を説
明する説明図、第２図１、第３図、第４図は他の実施例
と光ビームとの関係を示す断面図である。
１・・・・・・光ビーム整形プリズム、２・・曲レーザ
ーダイオード、４・・・・・・光ビーム、５・・・・・
・入射面、６・・・・・・情報ディスク、７・・・・・
・出入射面、８・・・・・・受光素子、９・・・・・・
出射面、１０・・・・・・偏光膜、１１・・聞４分の１
波長板、１５・・・・・・接合体。The drawings show preferred embodiments of the present invention, and FIG. 1 is an explanatory diagram illustrating the optical system of an optical head using an embodiment of the present invention, and FIGS. The figure is a sectional view showing the relationship between another embodiment and a light beam. 1...Light beam shaping prism, 2...Curved laser diode, 4...Light beam, 5...
・Incidence surface, 6...Information disk, 7...
・Entrance/exit surface, 8... Light receiving element, 9...
Output surface, 10...Polarizing film, 11...1/4
Wave plate, 15...joint body.
Claims (1)
入射面と、情報ディスク方向に向き、光ビームが出入り
する出入射面と、受光素子方向に向き、光ビームが出射
する出射面とを有する光ビーム整形プリズムの前記入射
面あるいは出入射面に、前記レーザーダイオード側から
順に配置される偏光膜と４分の１波長板の接合体を接合
するか、前記入射面に偏光膜を、出入射面に４分の１波
長板を各々接合することを特徴とする光学装置。A light beam shaping prism that has an entrance surface into which the light beam emitted from the laser diode enters, an entrance surface facing toward the information disk and through which the light beam enters and exits, and an exit surface facing toward the light receiving element and through which the light beam exits. A combination of a polarizing film and a quarter-wave plate arranged in order from the laser diode side is bonded to the incident surface or the incident/exiting surface of the An optical device characterized in that two single-wavelength plates are joined together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5377484U JPS60166826U (en) | 1984-04-12 | 1984-04-12 | optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5377484U JPS60166826U (en) | 1984-04-12 | 1984-04-12 | optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60166826U true JPS60166826U (en) | 1985-11-06 |
Family
ID=30574951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5377484U Pending JPS60166826U (en) | 1984-04-12 | 1984-04-12 | optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60166826U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166543A (en) * | 1982-03-09 | 1983-10-01 | トムソン−セエスエフ | Optical head of recording and reading device for data carrier |
| JPS58202409A (en) * | 1982-02-04 | 1983-11-25 | Toyo Commun Equip Co Ltd | Polarizing beam splitter provided with beam pattern shaping function |
-
1984
- 1984-04-12 JP JP5377484U patent/JPS60166826U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58202409A (en) * | 1982-02-04 | 1983-11-25 | Toyo Commun Equip Co Ltd | Polarizing beam splitter provided with beam pattern shaping function |
| JPS58166543A (en) * | 1982-03-09 | 1983-10-01 | トムソン−セエスエフ | Optical head of recording and reading device for data carrier |
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