JPH01151243U - - Google Patents
Info
- Publication number
- JPH01151243U JPH01151243U JP4864388U JP4864388U JPH01151243U JP H01151243 U JPH01151243 U JP H01151243U JP 4864388 U JP4864388 U JP 4864388U JP 4864388 U JP4864388 U JP 4864388U JP H01151243 U JPH01151243 U JP H01151243U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- dust
- condensing
- light beam
- distance
- 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
- 239000011521 glass Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 3
- 238000011179 visual inspection Methods 0.000 claims 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案の一実施例の断面図であり、第
２図は第１図のＡ―Ａ断面図である。
１……筐体、２……ランプ（レンズ電球）、３
……第１の集光レンズ、４……スリツト、５……
光ビーム、６……第２の集光レンズ、７……拡大
鏡、８……ミラーレンズ、９……観察口、１０…
…接眼レンズ、１１……対物レンズ、１２……ミ
ラー、１３……スリツト板、１４……サンプル取
入口、１５……サンプル取入口、１６……前部筐
体、１７……後部筐体、１８……集光点。
FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. 1... Housing, 2... Lamp (lens bulb), 3
...First condenser lens, 4...Slit, 5...
Light beam, 6... Second condensing lens, 7... Magnifying glass, 8... Mirror lens, 9... Observation port, 10...
...eyepiece, 11...objective lens, 12...mirror, 13...slit plate, 14...sample intake port, 15...sample intake port, 16...front housing, 17...rear housing, 18...Focusing point.
Claims (1)
ム５の集光点に浮遊する粉塵を拡大鏡７によつて
観察する粉塵目視装置において、前記光ビーム５
に対向して集点距離ｆの第２の集光レンズ６を設
け、第２の集光レンズ６の背後に近接してミラー
１２を設け、光ビーム５の集光点から第２の集光
レンズ６までの距離をｌとしたとき、ｌ＝ｆであ
ることを特徴とする粉塵目視装置。 In a dust viewing device that uses a magnifying glass 7 to observe dust floating at the convergence point of a light beam 5 condensed by a first condenser lens 3, the light beam 5 is
A second condensing lens 6 with a condensing distance f is provided opposite to the second condensing lens 6, and a mirror 12 is provided close to the back of the second condensing lens 6. A dust visual inspection device characterized in that when the distance to the lens 6 is l, l=f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4864388U JPH0633407Y2 (en) | 1988-04-11 | 1988-04-11 | Dust visual inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4864388U JPH0633407Y2 (en) | 1988-04-11 | 1988-04-11 | Dust visual inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01151243U true JPH01151243U (en) | 1989-10-19 |
| JPH0633407Y2 JPH0633407Y2 (en) | 1994-08-31 |
Family
ID=31274781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4864388U Expired - Lifetime JPH0633407Y2 (en) | 1988-04-11 | 1988-04-11 | Dust visual inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633407Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001281127A (en) * | 2000-03-31 | 2001-10-10 | Tonichi Computer Applications Kk | Particle size distribution measuring device and particle size distribution measuring method |
-
1988
- 1988-04-11 JP JP4864388U patent/JPH0633407Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001281127A (en) * | 2000-03-31 | 2001-10-10 | Tonichi Computer Applications Kk | Particle size distribution measuring device and particle size distribution measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633407Y2 (en) | 1994-08-31 |
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