JPH0416202Y2 - - Google Patents
Info
- Publication number
- JPH0416202Y2 JPH0416202Y2 JP18567485U JP18567485U JPH0416202Y2 JP H0416202 Y2 JPH0416202 Y2 JP H0416202Y2 JP 18567485 U JP18567485 U JP 18567485U JP 18567485 U JP18567485 U JP 18567485U JP H0416202 Y2 JPH0416202 Y2 JP H0416202Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- dust
- emitting member
- bright spot
- lens
- 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
- 239000000428 dust Substances 0.000 claims description 52
- 239000011521 glass Substances 0.000 claims description 25
- 230000003287 optical effect Effects 0.000 claims description 18
- 239000011148 porous material Substances 0.000 claims description 8
- 101700004678 SLIT3 Proteins 0.000 claims description 6
- 102100027339 Slit homolog 3 protein Human genes 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567485U JPH0416202Y2 (enrdf_load_stackoverflow) | 1985-12-02 | 1985-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567485U JPH0416202Y2 (enrdf_load_stackoverflow) | 1985-12-02 | 1985-12-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6293749U JPS6293749U (enrdf_load_stackoverflow) | 1987-06-15 |
| JPH0416202Y2 true JPH0416202Y2 (enrdf_load_stackoverflow) | 1992-04-10 |
Family
ID=31134522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18567485U Expired JPH0416202Y2 (enrdf_load_stackoverflow) | 1985-12-02 | 1985-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416202Y2 (enrdf_load_stackoverflow) |
-
1985
- 1985-12-02 JP JP18567485U patent/JPH0416202Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6293749U (enrdf_load_stackoverflow) | 1987-06-15 |
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