JPH0181602U - - Google Patents
Info
- Publication number
- JPH0181602U JPH0181602U JP1987177290U JP17729087U JPH0181602U JP H0181602 U JPH0181602 U JP H0181602U JP 1987177290 U JP1987177290 U JP 1987177290U JP 17729087 U JP17729087 U JP 17729087U JP H0181602 U JPH0181602 U JP H0181602U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens surfaces
- exit
- utility
- light incident
- 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 description 3
Landscapes
- Optical Head (AREA)
Description
第１図は本考案レンズの第１の実施例を用いた
光ピツクアツプを示す断面図、第２図は本考案レ
ンズの第２の実施例を用いた光ピツクアツプを示
す断面図、第３図は従来のレンズを用いた光ピツ
クアツプを示す断面図である。
符号の説明、１０，１０ａ……レンズ、１１…
…第１のレンズ面、１２……反射面、１３……第
２のレンズ面。
FIG. 1 is a sectional view showing an optical pickup using the first embodiment of the lens of the present invention, FIG. 2 is a sectional view showing an optical pickup using the second embodiment of the lens of the invention, and FIG. FIG. 2 is a cross-sectional view showing an optical pickup using a conventional lens. Explanation of symbols, 10, 10a...lens, 11...
...first lens surface, 12 ... reflective surface, 13 ... second lens surface.
Claims (1)
入射した光を他方のレンズ面から出射させる反射
面を、 少なくとも備えた ことを特徴とするレンズ。[Claims for Utility Model Registration] The invention is characterized by comprising at least two lens surfaces and a reflecting surface that causes light incident on one of the two lens surfaces to exit from the other lens surface. lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177290U JPH0181602U (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177290U JPH0181602U (en) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181602U true JPH0181602U (en) | 1989-05-31 |
Family
ID=31468958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177290U Pending JPH0181602U (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113741A (en) * | 1989-09-25 | 1991-05-15 | Fujitsu Ltd | Optical disk device |
-
1987
- 1987-11-20 JP JP1987177290U patent/JPH0181602U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113741A (en) * | 1989-09-25 | 1991-05-15 | Fujitsu Ltd | Optical disk device |
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