JPS63155055U - - Google Patents

Info

Publication number
JPS63155055U
JPS63155055U JP4692087U JP4692087U JPS63155055U JP S63155055 U JPS63155055 U JP S63155055U JP 4692087 U JP4692087 U JP 4692087U JP 4692087 U JP4692087 U JP 4692087U JP S63155055 U JPS63155055 U JP S63155055U
Authority
JP
Japan
Prior art keywords
incident
light source
laser light
laser
polarizing filter
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
Application number
JP4692087U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP4692087U priority Critical patent/JPS63155055U/ja
Publication of JPS63155055U publication Critical patent/JPS63155055U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例を示す構成図、第
2図は他の実施例を示す構成図、第3図は従来例
を示す構成図である。 8…基板、9…レーザ光、10…レーザ光源、
11…光検出器、12…偏光フイルタ、15a…
偏光フイルタ部。

Claims (1)

  1. 【実用新案登録請求の範囲】 平担且つ光反射性を有する基板表面に対して斜
    め方向からレーザ光を入射させる位置に設けられ
    たレーザ光源と、 上記レーザ光による上記基板表面の入射位置上
    部に設けられた光検出器と、 上記レーザ光源から上記入射位置を介して上記
    光検出器に至る迄の光路上に設けられた入射光の
    S成分を吸収する偏光フイルタとを有することを
    特徴とする表面異物検出装置。
JP4692087U 1987-03-31 1987-03-31 Pending JPS63155055U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4692087U JPS63155055U (ja) 1987-03-31 1987-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4692087U JPS63155055U (ja) 1987-03-31 1987-03-31

Publications (1)

Publication Number Publication Date
JPS63155055U true JPS63155055U (ja) 1988-10-12

Family

ID=30867033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4692087U Pending JPS63155055U (ja) 1987-03-31 1987-03-31

Country Status (1)

Country Link
JP (1) JPS63155055U (ja)

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