JPS52110645A - Method of molding large fresnel lens - Google Patents

Method of molding large fresnel lens

Info

Publication number
JPS52110645A
JPS52110645A JP2738076A JP2738076A JPS52110645A JP S52110645 A JPS52110645 A JP S52110645A JP 2738076 A JP2738076 A JP 2738076A JP 2738076 A JP2738076 A JP 2738076A JP S52110645 A JPS52110645 A JP S52110645A
Authority
JP
Japan
Prior art keywords
fresnel lens
molding large
large fresnel
molding
lens
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
JP2738076A
Other languages
Japanese (ja)
Inventor
Hideo Katou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KATO KAKEN YUUGEN
Original Assignee
KATO KAKEN YUUGEN
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 by KATO KAKEN YUUGEN filed Critical KATO KAKEN YUUGEN
Priority to JP2738076A priority Critical patent/JPS52110645A/en
Publication of JPS52110645A publication Critical patent/JPS52110645A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
JP2738076A 1976-03-14 1976-03-14 Method of molding large fresnel lens Pending JPS52110645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2738076A JPS52110645A (en) 1976-03-14 1976-03-14 Method of molding large fresnel lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2738076A JPS52110645A (en) 1976-03-14 1976-03-14 Method of molding large fresnel lens

Publications (1)

Publication Number Publication Date
JPS52110645A true JPS52110645A (en) 1977-09-16

Family

ID=12219433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2738076A Pending JPS52110645A (en) 1976-03-14 1976-03-14 Method of molding large fresnel lens

Country Status (1)

Country Link
JP (1) JPS52110645A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463825A (en) * 1977-10-31 1979-05-23 Touji Kikuchi Screen
JPS5674207A (en) * 1979-11-22 1981-06-19 Ricoh Co Ltd Plate-form lens array
JPS58144341U (en) * 1982-03-24 1983-09-29 三菱レイヨン株式会社 large screen
JPS58144340U (en) * 1982-03-23 1983-09-29 三菱レイヨン株式会社 large screen
JPS58168042A (en) * 1982-03-29 1983-10-04 Mitsubishi Rayon Co Ltd Large-sized screen
JPS5925530U (en) * 1982-08-10 1984-02-17 松下電器産業株式会社 screen
JPS59112242U (en) * 1983-01-17 1984-07-28 三菱レイヨン株式会社 large screen
JPH04158169A (en) * 1990-10-19 1992-06-01 Masami Kato Solar light lens heat-collecting device
CN103963324A (en) * 2014-04-25 2014-08-06 成都菲斯特科技有限公司 Manufacturing method for big size polarizing short focal length Fresnel lens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594457A (en) * 1967-06-12 1971-07-20 Polaroid Corp Method of press forming birefringent transparent polyethylene terephthalate sheets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594457A (en) * 1967-06-12 1971-07-20 Polaroid Corp Method of press forming birefringent transparent polyethylene terephthalate sheets

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463825A (en) * 1977-10-31 1979-05-23 Touji Kikuchi Screen
JPS5674207A (en) * 1979-11-22 1981-06-19 Ricoh Co Ltd Plate-form lens array
JPS635726B2 (en) * 1979-11-22 1988-02-04 Ricoh Kk
JPS58144340U (en) * 1982-03-23 1983-09-29 三菱レイヨン株式会社 large screen
JPS58144341U (en) * 1982-03-24 1983-09-29 三菱レイヨン株式会社 large screen
JPS58168042A (en) * 1982-03-29 1983-10-04 Mitsubishi Rayon Co Ltd Large-sized screen
JPS5925530U (en) * 1982-08-10 1984-02-17 松下電器産業株式会社 screen
JPS59112242U (en) * 1983-01-17 1984-07-28 三菱レイヨン株式会社 large screen
JPH04158169A (en) * 1990-10-19 1992-06-01 Masami Kato Solar light lens heat-collecting device
CN103963324A (en) * 2014-04-25 2014-08-06 成都菲斯特科技有限公司 Manufacturing method for big size polarizing short focal length Fresnel lens

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