JPS61203428U - - Google Patents
Info
- Publication number
- JPS61203428U JPS61203428U JP8842985U JP8842985U JPS61203428U JP S61203428 U JPS61203428 U JP S61203428U JP 8842985 U JP8842985 U JP 8842985U JP 8842985 U JP8842985 U JP 8842985U JP S61203428 U JPS61203428 U JP S61203428U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- polarizing prism
- fresnel lens
- micro fresnel
- bonded
- 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 8
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8842985U JPS61203428U (it) | 1985-06-12 | 1985-06-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8842985U JPS61203428U (it) | 1985-06-12 | 1985-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61203428U true JPS61203428U (it) | 1986-12-20 |
Family
ID=30641553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8842985U Pending JPS61203428U (it) | 1985-06-12 | 1985-06-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61203428U (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0223546A (ja) * | 1988-07-12 | 1990-01-25 | Matsushita Electric Ind Co Ltd | 光ヘッド装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59186149A (ja) * | 1983-04-07 | 1984-10-22 | Mitsubishi Electric Corp | 光デイスクピツクアツプ装置 |
-
1985
- 1985-06-12 JP JP8842985U patent/JPS61203428U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59186149A (ja) * | 1983-04-07 | 1984-10-22 | Mitsubishi Electric Corp | 光デイスクピツクアツプ装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0223546A (ja) * | 1988-07-12 | 1990-01-25 | Matsushita Electric Ind Co Ltd | 光ヘッド装置 |