JPS5925626U - Multi-beam optical disk head - Google Patents
Multi-beam optical disk headInfo
- Publication number
- JPS5925626U JPS5925626U JP12152482U JP12152482U JPS5925626U JP S5925626 U JPS5925626 U JP S5925626U JP 12152482 U JP12152482 U JP 12152482U JP 12152482 U JP12152482 U JP 12152482U JP S5925626 U JPS5925626 U JP S5925626U
- Authority
- JP
- Japan
- Prior art keywords
- parallel light
- optical disk
- disk head
- light beam
- light
- 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 title claims description 8
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
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
第１図は従来の複数光ビームを用いた光デイスクヘッド
の構成図、第２図は本考案の実施例の構成図である。図
において、１・・・・・・光ディスク、２・・・・・・
記録用半導体レーザ、３・・・・・・再生並びにサーボ
信号検出用半導体レーザ、４，５・・・・・・コリメー
トレンズ、６．１１・・・・・・波長フィルタ、７・・
・・・・偏光プリズム、８・・・・・・１ハ波長板、９
・・・・・・集光レンズ、１０・・・・・・再生並びに
サーボ信号検出用光検出器、である。FIG. 1 is a block diagram of a conventional optical disk head using a plurality of light beams, and FIG. 2 is a block diagram of an embodiment of the present invention. In the figure, 1...optical disc, 2...
Semiconductor laser for recording, 3... Semiconductor laser for playback and servo signal detection, 4, 5... Collimating lens, 6.11... Wavelength filter, 7...
...Polarizing prism, 8...1C Wave plate, 9
. . . Condenser lens, 10 . . . Photodetector for reproduction and servo signal detection.
Claims (1)
からの発光光からそれぞれ第１および第２の平行光束を
つくる第１および第２の光学系と、前記第１の平行光束
の光路中に縦続して配置された波長フィルタ、偏光プリ
ズム、１１４波長板および平行光束を集束する第３の光
学系とを含み、前記第２の平行光束を前記偏光プリズム
の前記第１の平行光束の入射面とは異なる面へ入射せし
める−ように、前記第２の光源と前記第２の光学系とを
配置せしめたことを特徴とする複数ビーム光ディスクヘ
ッド。first and second light sources having different wavelengths, first and second optical systems that respectively create first and second parallel light beams from the light emitted from these light sources, and an optical path of the first parallel light beam; a wavelength filter, a polarizing prism, a 114-wave plate, and a third optical system for converging a parallel light beam, which are arranged in series with each other, and the second parallel light beam is incident on the first parallel light beam of the polarizing prism. A multi-beam optical disk head, characterized in that the second light source and the second optical system are arranged so that the light enters a different surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12152482U JPS5925626U (en) | 1982-08-10 | 1982-08-10 | Multi-beam optical disk head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12152482U JPS5925626U (en) | 1982-08-10 | 1982-08-10 | Multi-beam optical disk head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5925626U true JPS5925626U (en) | 1984-02-17 |
Family
ID=30278103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12152482U Pending JPS5925626U (en) | 1982-08-10 | 1982-08-10 | Multi-beam optical disk head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925626U (en) |
-
1982
- 1982-08-10 JP JP12152482U patent/JPS5925626U/en active Pending
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