JPH02144755U - - Google Patents
Info
- Publication number
- JPH02144755U JPH02144755U JP5271989U JP5271989U JPH02144755U JP H02144755 U JPH02144755 U JP H02144755U JP 5271989 U JP5271989 U JP 5271989U JP 5271989 U JP5271989 U JP 5271989U JP H02144755 U JPH02144755 U JP H02144755U
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- concave mirror
- particle detector
- convex mirror
- face
- 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
- 239000002245 particle Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図〜第２図は本考案に係る微粒子検出器の
一実施例を説明する図であり、第１図は一実施例
の微粒子検出器の構成を示す概略図、第２図は一
実施例のレンズフードを説明する図、第３図及び
第４図は従来の微粒子検出器を説明する図であり
、第３図は従来例の微粒子検出器の構成を示す概
略図、第４図は従来例のレンズフードを説明する
図である。
１……レンズフード、１ａ……先端部、１ｂ…
…段差部、３１……凹面鏡、３２……凸面鏡、３
８……多重反射光。
FIGS. 1 and 2 are diagrams for explaining one embodiment of a particle detector according to the present invention. FIG. 1 is a schematic diagram showing the configuration of a particle detector according to one embodiment, and FIG. 3 and 4 are diagrams explaining a conventional particle detector, FIG. 3 is a schematic diagram showing the configuration of a conventional particle detector, and FIG. It is a figure explaining the lens hood of a conventional example. 1... Lens hood, 1a... Tip, 1b...
...Stepped portion, 31... Concave mirror, 32... Convex mirror, 3
8...Multiple reflected light.
Claims (1)
され、該凹面鏡３１と該凸面鏡３２間に導入され
た光ビームが該凹面鏡３１と該凸面鏡３２によつ
て多重反射された多重反射光と対向するように集
光用のレンズフード１が配置された微粒子検出器
において、 該多重反射光側３８の該レンズフード１の先端
部１ａの少なくとも一部を先太とし、かつ該先端
部１ａの外周部の少なくとも一部に該多重反射光
側３８に迫り出すように段差部１ｂを設けるよう
に構成することを特徴とする微粒子検出器。[Claims for Utility Model Registration] A concave mirror 31 and a convex mirror 32 are arranged to face each other, and a light beam introduced between the concave mirror 31 and the convex mirror 32 is multiple-reflected by the concave mirror 31 and the convex mirror 32. In a particle detector in which a condensing lens hood 1 is arranged to face the multiple reflected light, at least a part of the tip 1a of the lens hood 1 on the multiple reflected light side 38 is tapered, and A particle detector characterized in that a stepped portion 1b is provided on at least a portion of the outer peripheral portion of the tip portion 1a so as to protrude toward the multiple reflection light side 38.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5271989U JPH02144755U (en) | 1989-05-08 | 1989-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5271989U JPH02144755U (en) | 1989-05-08 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02144755U true JPH02144755U (en) | 1990-12-07 |
Family
ID=31573262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5271989U Pending JPH02144755U (en) | 1989-05-08 | 1989-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02144755U (en) |
-
1989
- 1989-05-08 JP JP5271989U patent/JPH02144755U/ja active Pending