JPH0371253B2 - - Google Patents

Info

Publication number
JPH0371253B2
JPH0371253B2 JP61302294A JP30229486A JPH0371253B2 JP H0371253 B2 JPH0371253 B2 JP H0371253B2 JP 61302294 A JP61302294 A JP 61302294A JP 30229486 A JP30229486 A JP 30229486A JP H0371253 B2 JPH0371253 B2 JP H0371253B2
Authority
JP
Japan
Prior art keywords
screw
core layer
skin layer
lens
molded product
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.)
Expired - Lifetime
Application number
JP61302294A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63154336A (ja
Inventor
Hidekazu Okajima
Takashi Arai
Katsuo Kawano
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 JP61302294A priority Critical patent/JPS63154336A/ja
Priority to US07/022,210 priority patent/US4805991A/en
Publication of JPS63154336A publication Critical patent/JPS63154336A/ja
Publication of JPH0371253B2 publication Critical patent/JPH0371253B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • Laminated Bodies (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP61302294A 1986-03-13 1986-12-18 多層構造樹脂成形品 Granted JPS63154336A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP61302294A JPS63154336A (ja) 1986-12-18 1986-12-18 多層構造樹脂成形品
US07/022,210 US4805991A (en) 1986-03-13 1987-03-05 Multi-layer resin molded article and method of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61302294A JPS63154336A (ja) 1986-12-18 1986-12-18 多層構造樹脂成形品

Publications (2)

Publication Number Publication Date
JPS63154336A JPS63154336A (ja) 1988-06-27
JPH0371253B2 true JPH0371253B2 (enExample) 1991-11-12

Family

ID=17907256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61302294A Granted JPS63154336A (ja) 1986-03-13 1986-12-18 多層構造樹脂成形品

Country Status (1)

Country Link
JP (1) JPS63154336A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3209775B2 (ja) * 1992-01-10 2001-09-17 株式会社日立製作所 複合発電設備およびその運転方法
JPH0564811U (ja) * 1992-01-30 1993-08-27 株式会社ニコン レンズ鏡筒の防滴機構
JP5804692B2 (ja) * 2010-11-24 2015-11-04 キヤノン株式会社 プラスチック光学部材およびプラスチック光学部材の製造方法
JP6286967B2 (ja) * 2013-09-18 2018-03-07 リコーイメージング株式会社 レンズ鏡筒
WO2015112189A1 (en) 2014-01-24 2015-07-30 Kortec, Inc. Co-injection molded multi-layer article with injection-formed aperture between gate area and peripheral edge

Also Published As

Publication number Publication date
JPS63154336A (ja) 1988-06-27

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