JPH042204Y2 - - Google Patents
Info
- Publication number
- JPH042204Y2 JPH042204Y2 JP8641586U JP8641586U JPH042204Y2 JP H042204 Y2 JPH042204 Y2 JP H042204Y2 JP 8641586 U JP8641586 U JP 8641586U JP 8641586 U JP8641586 U JP 8641586U JP H042204 Y2 JPH042204 Y2 JP H042204Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- optical fiber
- light
- lens
- foothold
- 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.)
- Expired
Links
- 239000013307 optical fiber Substances 0.000 claims description 29
- 206010014357 Electric shock Diseases 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8641586U JPH042204Y2 (US07655688-20100202-C00086.png) | 1986-06-06 | 1986-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8641586U JPH042204Y2 (US07655688-20100202-C00086.png) | 1986-06-06 | 1986-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62200744U JPS62200744U (US07655688-20100202-C00086.png) | 1987-12-21 |
| JPH042204Y2 true JPH042204Y2 (US07655688-20100202-C00086.png) | 1992-01-24 |
Family
ID=30942700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8641586U Expired JPH042204Y2 (US07655688-20100202-C00086.png) | 1986-06-06 | 1986-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042204Y2 (US07655688-20100202-C00086.png) |
-
1986
- 1986-06-06 JP JP8641586U patent/JPH042204Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62200744U (US07655688-20100202-C00086.png) | 1987-12-21 |
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