JPH0469809U - - Google Patents

Info

Publication number
JPH0469809U
JPH0469809U JP11291490U JP11291490U JPH0469809U JP H0469809 U JPH0469809 U JP H0469809U JP 11291490 U JP11291490 U JP 11291490U JP 11291490 U JP11291490 U JP 11291490U JP H0469809 U JPH0469809 U JP H0469809U
Authority
JP
Japan
Prior art keywords
fresnel lens
finished
diffused
outer slope
diameter
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
JP11291490U
Other languages
English (en)
Japanese (ja)
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 JP11291490U priority Critical patent/JPH0469809U/ja
Publication of JPH0469809U publication Critical patent/JPH0469809U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
JP11291490U 1990-10-26 1990-10-26 Pending JPH0469809U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11291490U JPH0469809U (enrdf_load_stackoverflow) 1990-10-26 1990-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11291490U JPH0469809U (enrdf_load_stackoverflow) 1990-10-26 1990-10-26

Publications (1)

Publication Number Publication Date
JPH0469809U true JPH0469809U (enrdf_load_stackoverflow) 1992-06-19

Family

ID=31860443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11291490U Pending JPH0469809U (enrdf_load_stackoverflow) 1990-10-26 1990-10-26

Country Status (1)

Country Link
JP (1) JPH0469809U (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012524287A (ja) * 2009-04-17 2012-10-11 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング レンズ、レンズを有するオプトエレクトロニクス素子およびレンズの製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012524287A (ja) * 2009-04-17 2012-10-11 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング レンズ、レンズを有するオプトエレクトロニクス素子およびレンズの製造方法

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