JPS61182927U - - Google Patents
Info
- Publication number
- JPS61182927U JPS61182927U JP1985063321U JP6332185U JPS61182927U JP S61182927 U JPS61182927 U JP S61182927U JP 1985063321 U JP1985063321 U JP 1985063321U JP 6332185 U JP6332185 U JP 6332185U JP S61182927 U JPS61182927 U JP S61182927U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical pickup
- shielding layer
- light
- except
- 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 3
- 230000004075 alteration Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Lens Barrels (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985063321U JPS61182927U (bg) | 1985-04-30 | 1985-04-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985063321U JPS61182927U (bg) | 1985-04-30 | 1985-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61182927U true JPS61182927U (bg) | 1986-11-14 |
Family
ID=30593351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985063321U Pending JPS61182927U (bg) | 1985-04-30 | 1985-04-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61182927U (bg) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6478441A (en) * | 1987-09-18 | 1989-03-23 | Sanyo Electric Co | Optical pickup device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5589924A (en) * | 1978-12-27 | 1980-07-08 | Toshiba Corp | Optical information reproduction unit |
-
1985
- 1985-04-30 JP JP1985063321U patent/JPS61182927U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5589924A (en) * | 1978-12-27 | 1980-07-08 | Toshiba Corp | Optical information reproduction unit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6478441A (en) * | 1987-09-18 | 1989-03-23 | Sanyo Electric Co | Optical pickup device |