JPH0185769U - - Google Patents
Info
- Publication number
- JPH0185769U JPH0185769U JP1987180579U JP18057987U JPH0185769U JP H0185769 U JPH0185769 U JP H0185769U JP 1987180579 U JP1987180579 U JP 1987180579U JP 18057987 U JP18057987 U JP 18057987U JP H0185769 U JPH0185769 U JP H0185769U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- light
- substrate
- shielding layer
- concave
- 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
- 239000000758 substrate Substances 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Instructional Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180579U JPH0538375Y2 (https=) | 1987-11-26 | 1987-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180579U JPH0538375Y2 (https=) | 1987-11-26 | 1987-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0185769U true JPH0185769U (https=) | 1989-06-07 |
| JPH0538375Y2 JPH0538375Y2 (https=) | 1993-09-28 |
Family
ID=31472093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987180579U Expired - Lifetime JPH0538375Y2 (https=) | 1987-11-26 | 1987-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538375Y2 (https=) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124655U (https=) * | 1978-02-17 | 1979-08-31 | ||
| JPS6028775U (ja) * | 1983-07-30 | 1985-02-26 | 品川 鎮郎 | 星座早見器 |
-
1987
- 1987-11-26 JP JP1987180579U patent/JPH0538375Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124655U (https=) * | 1978-02-17 | 1979-08-31 | ||
| JPS6028775U (ja) * | 1983-07-30 | 1985-02-26 | 品川 鎮郎 | 星座早見器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538375Y2 (https=) | 1993-09-28 |