JPS63195301U - - Google Patents
Info
- Publication number
- JPS63195301U JPS63195301U JP8120287U JP8120287U JPS63195301U JP S63195301 U JPS63195301 U JP S63195301U JP 8120287 U JP8120287 U JP 8120287U JP 8120287 U JP8120287 U JP 8120287U JP S63195301 U JPS63195301 U JP S63195301U
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding filter
- filter according
- etching
- alkali
- 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
- 238000005530 etching Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 229930182556 Polyacetal Natural products 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 2
- 229920006324 polyoxymethylene Polymers 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120287U JPS63195301U (OSRAM) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8120287U JPS63195301U (OSRAM) | 1987-05-29 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195301U true JPS63195301U (OSRAM) | 1988-12-15 |
Family
ID=30932728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8120287U Pending JPS63195301U (OSRAM) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195301U (OSRAM) |
-
1987
- 1987-05-29 JP JP8120287U patent/JPS63195301U/ja active Pending