JPS524246A - Fresnel lens and metal mold manufacturing unit - Google Patents

Fresnel lens and metal mold manufacturing unit

Info

Publication number
JPS524246A
JPS524246A JP8022075A JP8022075A JPS524246A JP S524246 A JPS524246 A JP S524246A JP 8022075 A JP8022075 A JP 8022075A JP 8022075 A JP8022075 A JP 8022075A JP S524246 A JPS524246 A JP S524246A
Authority
JP
Japan
Prior art keywords
fresnel lens
metal mold
manufacturing unit
mold manufacturing
focus
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
JP8022075A
Other languages
English (en)
Inventor
Hiroaki Ishibashi
Hitoshi Hirano
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP8022075A priority Critical patent/JPS524246A/ja
Publication of JPS524246A publication Critical patent/JPS524246A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
JP8022075A 1975-06-27 1975-06-27 Fresnel lens and metal mold manufacturing unit Pending JPS524246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8022075A JPS524246A (en) 1975-06-27 1975-06-27 Fresnel lens and metal mold manufacturing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8022075A JPS524246A (en) 1975-06-27 1975-06-27 Fresnel lens and metal mold manufacturing unit

Publications (1)

Publication Number Publication Date
JPS524246A true JPS524246A (en) 1977-01-13

Family

ID=13712282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8022075A Pending JPS524246A (en) 1975-06-27 1975-06-27 Fresnel lens and metal mold manufacturing unit

Country Status (1)

Country Link
JP (1) JPS524246A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181688A (zh) * 2016-07-14 2016-12-07 常州湖南大学机械装备研究院 一种菲涅尔透镜模具的磨削方法
JPWO2016093300A1 (ja) * 2014-12-12 2017-10-05 コニカミノルタ株式会社 加工方法及び加工装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2016093300A1 (ja) * 2014-12-12 2017-10-05 コニカミノルタ株式会社 加工方法及び加工装置
CN106181688A (zh) * 2016-07-14 2016-12-07 常州湖南大学机械装备研究院 一种菲涅尔透镜模具的磨削方法

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