JPS61189416U - - Google Patents
Info
- Publication number
- JPS61189416U JPS61189416U JP7487685U JP7487685U JPS61189416U JP S61189416 U JPS61189416 U JP S61189416U JP 7487685 U JP7487685 U JP 7487685U JP 7487685 U JP7487685 U JP 7487685U JP S61189416 U JPS61189416 U JP S61189416U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- pickup device
- optical
- order diffracted
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 13
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7487685U JPH0519852Y2 (xx) | 1985-05-20 | 1985-05-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7487685U JPH0519852Y2 (xx) | 1985-05-20 | 1985-05-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61189416U true JPS61189416U (xx) | 1986-11-26 |
JPH0519852Y2 JPH0519852Y2 (xx) | 1993-05-25 |
Family
ID=30615574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7487685U Expired - Lifetime JPH0519852Y2 (xx) | 1985-05-20 | 1985-05-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0519852Y2 (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03147527A (ja) * | 1989-11-02 | 1991-06-24 | Olympus Optical Co Ltd | 光学ヘッド |
-
1985
- 1985-05-20 JP JP7487685U patent/JPH0519852Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03147527A (ja) * | 1989-11-02 | 1991-06-24 | Olympus Optical Co Ltd | 光学ヘッド |
Also Published As
Publication number | Publication date |
---|---|
JPH0519852Y2 (xx) | 1993-05-25 |
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