JPS61268414A - ダブルヘリコイド鏡筒ユニツトの製造方法 - Google Patents

ダブルヘリコイド鏡筒ユニツトの製造方法

Info

Publication number
JPS61268414A
JPS61268414A JP10963785A JP10963785A JPS61268414A JP S61268414 A JPS61268414 A JP S61268414A JP 10963785 A JP10963785 A JP 10963785A JP 10963785 A JP10963785 A JP 10963785A JP S61268414 A JPS61268414 A JP S61268414A
Authority
JP
Japan
Prior art keywords
helicoid
tube
cylinder
double
mold
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.)
Granted
Application number
JP10963785A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0261891B2 (enrdf_load_stackoverflow
Inventor
Hironori Takase
高瀬　弘則
Shigeru Kamata
鎌田　滋
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP10963785A priority Critical patent/JPS61268414A/ja
Publication of JPS61268414A publication Critical patent/JPS61268414A/ja
Priority to US07/185,266 priority patent/US4917846A/en
Publication of JPH0261891B2 publication Critical patent/JPH0261891B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP10963785A 1985-05-21 1985-05-22 ダブルヘリコイド鏡筒ユニツトの製造方法 Granted JPS61268414A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10963785A JPS61268414A (ja) 1985-05-22 1985-05-22 ダブルヘリコイド鏡筒ユニツトの製造方法
US07/185,266 US4917846A (en) 1985-05-21 1988-04-18 Method of manufacturing a plurality of rotational members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10963785A JPS61268414A (ja) 1985-05-22 1985-05-22 ダブルヘリコイド鏡筒ユニツトの製造方法

Publications (2)

Publication Number Publication Date
JPS61268414A true JPS61268414A (ja) 1986-11-27
JPH0261891B2 JPH0261891B2 (enrdf_load_stackoverflow) 1990-12-21

Family

ID=14515330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10963785A Granted JPS61268414A (ja) 1985-05-21 1985-05-22 ダブルヘリコイド鏡筒ユニツトの製造方法

Country Status (1)

Country Link
JP (1) JPS61268414A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110222A (en) * 1976-03-12 1977-09-16 Minolta Camera Kk Production method of screw parts and metal pattern for production of them

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110222A (en) * 1976-03-12 1977-09-16 Minolta Camera Kk Production method of screw parts and metal pattern for production of them

Also Published As

Publication number Publication date
JPH0261891B2 (enrdf_load_stackoverflow) 1990-12-21

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