JPS63172973U - - Google Patents
Info
- Publication number
- JPS63172973U JPS63172973U JP6663587U JP6663587U JPS63172973U JP S63172973 U JPS63172973 U JP S63172973U JP 6663587 U JP6663587 U JP 6663587U JP 6663587 U JP6663587 U JP 6663587U JP S63172973 U JPS63172973 U JP S63172973U
- Authority
- JP
- Japan
- Prior art keywords
- light
- changing means
- emitting element
- receiving element
- amount changing
- 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
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6663587U JPS63172973U (2) | 1987-04-30 | 1987-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6663587U JPS63172973U (2) | 1987-04-30 | 1987-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63172973U true JPS63172973U (2) | 1988-11-10 |
Family
ID=30904825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6663587U Pending JPS63172973U (2) | 1987-04-30 | 1987-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63172973U (2) |
-
1987
- 1987-04-30 JP JP6663587U patent/JPS63172973U/ja active Pending
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