JPH02131633U - - Google Patents

Info

Publication number
JPH02131633U
JPH02131633U JP1989040801U JP4080189U JPH02131633U JP H02131633 U JPH02131633 U JP H02131633U JP 1989040801 U JP1989040801 U JP 1989040801U JP 4080189 U JP4080189 U JP 4080189U JP H02131633 U JPH02131633 U JP H02131633U
Authority
JP
Japan
Prior art keywords
light
receiving device
light receiving
optical
slopes
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
JP1989040801U
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 JP1989040801U priority Critical patent/JPH02131633U/ja
Publication of JPH02131633U publication Critical patent/JPH02131633U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Exposure Control For Cameras (AREA)
  • Blocking Light For Cameras (AREA)

Description

【図面の簡単な説明】
第1図、第2図、第3図、第4図は各々本考案
に関する光学素子の光学的断面図、第5図は、本
考案に係る光学素子の正面図、第6図は、従来の
光学装置の断面図。 1……受光センサー、4……光学素子。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 受光用素子の前方に配置される光学素子で
    あつて、該光学素子の前記受光用素子側の面形状
    を、光軸から離れるに従い物体側に傾斜した同心
    円、あるいは同心楕円状の斜面で形成したことを
    特徴とする受光装置。 (2) 前記光学系の面形状を階段状であつて複数
    の前記斜面で形成したことを特徴とする実用新案
    登録請求の範囲第1項記載の受光装置。 (3) 前記斜面が光軸とのなす傾斜角をθとする
    時 40゜<θ<80゜ なる条件式を満足することを特徴とする実用新案
    登録請求の範囲第1項記載の受光装置。
JP1989040801U 1989-04-05 1989-04-05 Pending JPH02131633U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989040801U JPH02131633U (ja) 1989-04-05 1989-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989040801U JPH02131633U (ja) 1989-04-05 1989-04-05

Publications (1)

Publication Number Publication Date
JPH02131633U true JPH02131633U (ja) 1990-11-01

Family

ID=31550905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989040801U Pending JPH02131633U (ja) 1989-04-05 1989-04-05

Country Status (1)

Country Link
JP (1) JPH02131633U (ja)

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