JPS63101901U - - Google Patents

Info

Publication number
JPS63101901U
JPS63101901U JP1986203346U JP20334686U JPS63101901U JP S63101901 U JPS63101901 U JP S63101901U JP 1986203346 U JP1986203346 U JP 1986203346U JP 20334686 U JP20334686 U JP 20334686U JP S63101901 U JPS63101901 U JP S63101901U
Authority
JP
Japan
Prior art keywords
light
fresnel lens
condensing
refractive surfaces
stepped portion
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
JP1986203346U
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 JP1986203346U priority Critical patent/JPS63101901U/ja
Publication of JPS63101901U publication Critical patent/JPS63101901U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Optical Elements (AREA)
JP1986203346U 1986-12-24 1986-12-24 Pending JPS63101901U (xx)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986203346U JPS63101901U (xx) 1986-12-24 1986-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986203346U JPS63101901U (xx) 1986-12-24 1986-12-24

Publications (1)

Publication Number Publication Date
JPS63101901U true JPS63101901U (xx) 1988-07-02

Family

ID=31168587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986203346U Pending JPS63101901U (xx) 1986-12-24 1986-12-24

Country Status (1)

Country Link
JP (1) JPS63101901U (xx)

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