JPH035224U - - Google Patents
Info
- Publication number
- JPH035224U JPH035224U JP6721289U JP6721289U JPH035224U JP H035224 U JPH035224 U JP H035224U JP 6721289 U JP6721289 U JP 6721289U JP 6721289 U JP6721289 U JP 6721289U JP H035224 U JPH035224 U JP H035224U
- Authority
- JP
- Japan
- Prior art keywords
- optical head
- head device
- converging
- beams
- constituted
- 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 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Head (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
他の実施例を示す図である。
４…凹面鏡。
FIG. 1 is a diagram showing one embodiment of the present invention, and FIG. 2 is a diagram showing another embodiment. 4...Concave mirror.
Claims (1)
めて情報の記録及び若しくは再生を行う光ヘツド
装置であつて、ビーム収束手段を凹面鏡にて構成
したことを特徴とする光ヘツド装置。 1. An optical head device for recording and/or reproducing information by converging several types of beams with different wavelengths onto a medium, the optical head device being characterized in that the beam converging means is constituted by a concave mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6721289U JPH035224U (en) | 1989-06-08 | 1989-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6721289U JPH035224U (en) | 1989-06-08 | 1989-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH035224U true JPH035224U (en) | 1991-01-18 |
Family
ID=31600588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6721289U Pending JPH035224U (en) | 1989-06-08 | 1989-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035224U (en) |
-
1989
- 1989-06-08 JP JP6721289U patent/JPH035224U/ja active Pending