JPS62187422U - - Google Patents
Info
- Publication number
- JPS62187422U JPS62187422U JP7554486U JP7554486U JPS62187422U JP S62187422 U JPS62187422 U JP S62187422U JP 7554486 U JP7554486 U JP 7554486U JP 7554486 U JP7554486 U JP 7554486U JP S62187422 U JPS62187422 U JP S62187422U
- Authority
- JP
- Japan
- Prior art keywords
- optical pickup
- beam splitter
- reflecting mirror
- recorded
- mirror
- 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 5
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図は本考案に係る反射ミラーの斜視図、側
面図及びこれを使用した光ピツクアツプの光学構
成の斜視図を示す。第２図及び第３図は本考案に
係る反射ミラーの他の実施例を示す斜視図及び側
面図である。第４図は本考案の反射ミラーの製造
方法を説明する図である。第５図は従来の構成を
示す斜視図である。
１，９，１０，１１，１２，１３，１４，１６
は反射ミラー、１ｂ，１０ｂ，１１ｂ，１２ｂ，
１３ｂ，１４ｂ，１６ｂは切欠部、１ａ，１０ａ
，１１ａ，１２ａ，１３ａ，１４ａ，１６ａは反
射面、２は半導体レーザ、３は回折格子、４はハ
ーフミラー、５は対物レンズ、６はデイスク、７
は検出レンズ、８は受光素子。
FIG. 1 shows a perspective view and a side view of a reflecting mirror according to the present invention, and a perspective view of the optical configuration of an optical pickup using the same. 2 and 3 are a perspective view and a side view showing another embodiment of the reflective mirror according to the present invention. FIG. 4 is a diagram illustrating a method of manufacturing a reflective mirror according to the present invention. FIG. 5 is a perspective view showing a conventional configuration. 1, 9, 10, 11, 12, 13, 14, 16
are reflective mirrors, 1b, 10b, 11b, 12b,
13b, 14b, 16b are notches, 1a, 10a
, 11a, 12a, 13a, 14a, 16a are reflective surfaces, 2 is a semiconductor laser, 3 is a diffraction grating, 4 is a half mirror, 5 is an objective lens, 6 is a disk, 7
is a detection lens, and 8 is a light receiving element.
Claims (1)
ツタで反射せしめた後、反射ミラーによつて対物
レンズへ導き、記録媒体上に信号を記録、若しく
は記録媒体上に記録された信号を再生する構成の
光ピツクアツプにおいて、該反射ミラーは該ビー
ムスプリツタと交叉する部分に該ビームスプリツ
タの当接を回避する如き切欠部が設けられている
ことを特徴とする光ピツクアツプ装置。 (2) 反射ミラーの反射面が台形状をなして切欠
部が構成されていることを特徴とする実用新案登
録請求の範囲第１項記載の光ピツクアツプ装置。[Claims for Utility Model Registration] (1) After the laser beam is reflected by a parallel plane plate beam splitter, it is guided to an objective lens by a reflecting mirror, and a signal is recorded on a recording medium, or a signal is recorded on a recording medium. In an optical pickup configured to reproduce signals recorded on a mirror, the reflecting mirror is characterized in that a notch is provided at a portion where the reflecting mirror intersects with the beam splitter to avoid contact with the beam splitter. Optical pickup device. (2) The optical pickup device according to claim 1, wherein the reflective surface of the reflective mirror is trapezoidal and has a notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7554486U JPS62187422U (en) | 1986-05-20 | 1986-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7554486U JPS62187422U (en) | 1986-05-20 | 1986-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62187422U true JPS62187422U (en) | 1987-11-28 |
Family
ID=30921783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7554486U Pending JPS62187422U (en) | 1986-05-20 | 1986-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62187422U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215739A (en) * | 1982-06-08 | 1983-12-15 | Hitachi Ltd | Pickup for optical information reproducer |
| JPS59178635A (en) * | 1983-03-29 | 1984-10-09 | Victor Co Of Japan Ltd | Optical recording device |
| JPS59215034A (en) * | 1983-05-19 | 1984-12-04 | Brother Ind Ltd | Recording and reproducing device |
-
1986
- 1986-05-20 JP JP7554486U patent/JPS62187422U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58215739A (en) * | 1982-06-08 | 1983-12-15 | Hitachi Ltd | Pickup for optical information reproducer |
| JPS59178635A (en) * | 1983-03-29 | 1984-10-09 | Victor Co Of Japan Ltd | Optical recording device |
| JPS59215034A (en) * | 1983-05-19 | 1984-12-04 | Brother Ind Ltd | Recording and reproducing device |
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