GB1435399A - Diaphragm e - Google Patents

Diaphragm e

Info

Publication number
GB1435399A
GB1435399A GB4955974A GB4955974A GB1435399A GB 1435399 A GB1435399 A GB 1435399A GB 4955974 A GB4955974 A GB 4955974A GB 4955974 A GB4955974 A GB 4955974A GB 1435399 A GB1435399 A GB 1435399A
Authority
GB
United Kingdom
Prior art keywords
mould
inlet
cavity
elements
piston
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
Application number
GB4955974A
Other languages
English (en)
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.)
Jos Schneider Optische Werke GmbH
Original Assignee
Jos Schneider Optische Werke GmbH
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 Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Publication of GB1435399A publication Critical patent/GB1435399A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/38—Cutting-off equipment for sprues or ingates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G03B9/06—Two or more co-operating pivoted blades, e.g. iris type

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Diaphragms For Cameras (AREA)
GB4955974A 1974-02-23 1974-11-15 Diaphragm e Expired GB1435399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742408793 DE2408793A1 (de) 1974-02-23 1974-02-23 Irisblende fuer photographische, kinematographische oder fernseh-objektive und verfahren zu deren herstellung

Publications (1)

Publication Number Publication Date
GB1435399A true GB1435399A (en) 1976-05-12

Family

ID=5908279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4955974A Expired GB1435399A (en) 1974-02-23 1974-11-15 Diaphragm e

Country Status (7)

Country Link
US (1) US4009946A (US07608600-20091027-C00054.png)
JP (1) JPS50120621A (US07608600-20091027-C00054.png)
CH (1) CH578191A5 (US07608600-20091027-C00054.png)
DE (1) DE2408793A1 (US07608600-20091027-C00054.png)
FR (1) FR2262323B3 (US07608600-20091027-C00054.png)
GB (1) GB1435399A (US07608600-20091027-C00054.png)
IT (1) IT1027314B (US07608600-20091027-C00054.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391635A (en) * 2002-08-06 2004-02-11 Wilkes Iris Ltd Iris diaphragm with burst hole joint

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51151539A (en) * 1975-06-20 1976-12-27 Canon Inc Diaphragm device
DE2839788C2 (de) * 1978-09-13 1982-06-24 Balda-Werke Photographische Geräte und Kunststoff GmbH & Co KG, 4980 Bünde Ringelement für Kameraverschluß
JPS55105422U (US07608600-20091027-C00054.png) * 1979-01-19 1980-07-23
JPS6139383Y2 (US07608600-20091027-C00054.png) * 1979-04-28 1986-11-12
US4319821A (en) * 1979-10-13 1982-03-16 Canon Kabushiki Kaisha Shutter blades for camera
US4335947A (en) * 1979-11-21 1982-06-22 Balda-Werke Photographische Gerate Und Kunststoff Gmbh & Co., Kg Camera shutter assembly
JPS57146124U (US07608600-20091027-C00054.png) * 1981-03-11 1982-09-14
DE3412061C2 (de) * 1984-03-31 1986-01-23 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Blendenlamellen
US4926202A (en) * 1987-07-15 1990-05-15 Canon Kabushiki Kaisha/Canon Denshi Kabushiki Kaisha Shutter for use in camera
JPH0814675B2 (ja) * 1987-11-16 1996-02-14 キヤノン電子株式会社 絞り装置
JPH06317826A (ja) * 1993-05-07 1994-11-15 Nikon Corp 絞り羽根とその製造方法
US5923913A (en) * 1998-02-04 1999-07-13 Eastman Kodak Company Iris diaphragm
US6945204B2 (en) * 2003-11-12 2005-09-20 General Motors Corporation Engine valve actuator assembly
JP5349848B2 (ja) * 2008-06-12 2013-11-20 キヤノン株式会社 絞り羽根を有する光量調節装置および絞り羽根の製造方法
US9091843B1 (en) 2014-03-16 2015-07-28 Hyperion Development, LLC Optical assembly for a wide field of view point action camera with low track length to focal length ratio
US9726859B1 (en) 2014-03-16 2017-08-08 Navitar Industries, Llc Optical assembly for a wide field of view camera with low TV distortion
US9995910B1 (en) 2014-03-16 2018-06-12 Navitar Industries, Llc Optical assembly for a compact wide field of view digital camera with high MTF
US10545314B1 (en) 2014-03-16 2020-01-28 Navitar Industries, Llc Optical assembly for a compact wide field of view digital camera with low lateral chromatic aberration
US9316808B1 (en) 2014-03-16 2016-04-19 Hyperion Development, LLC Optical assembly for a wide field of view point action camera with a low sag aspheric lens element
US10386604B1 (en) 2014-03-16 2019-08-20 Navitar Industries, Llc Compact wide field of view digital camera with stray light impact suppression
US10139595B1 (en) 2014-03-16 2018-11-27 Navitar Industries, Llc Optical assembly for a compact wide field of view digital camera with low first lens diameter to image diagonal ratio
US9494772B1 (en) 2014-03-16 2016-11-15 Hyperion Development, LLC Optical assembly for a wide field of view point action camera with low field curvature
US9316820B1 (en) 2014-03-16 2016-04-19 Hyperion Development, LLC Optical assembly for a wide field of view point action camera with low astigmatism
CN112405640B (zh) * 2021-01-25 2021-08-03 宁波丞达精机股份有限公司 一种自动化镜片剪切机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348463A (en) * 1965-05-24 1967-10-24 Eastman Kodak Co One-piece light-controlling structure
DE2136343A1 (de) * 1971-07-21 1973-02-01 Schneider Co Optische Werke Objektivblende mit linearer teilung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391635A (en) * 2002-08-06 2004-02-11 Wilkes Iris Ltd Iris diaphragm with burst hole joint
GB2391635B (en) * 2002-08-06 2005-07-13 Wilkes Iris Ltd Iris diaphragm

Also Published As

Publication number Publication date
DE2408793A1 (de) 1975-09-04
IT1027314B (it) 1978-11-20
US4009946A (en) 1977-03-01
FR2262323B3 (US07608600-20091027-C00054.png) 1977-09-23
FR2262323A1 (US07608600-20091027-C00054.png) 1975-09-19
JPS50120621A (US07608600-20091027-C00054.png) 1975-09-22
CH578191A5 (US07608600-20091027-C00054.png) 1976-07-30

Similar Documents

Publication Publication Date Title
GB1435399A (en) Diaphragm e
JPS5770627A (en) Manufacture of ventilator
JPS5216565A (en) Method of making joint of synthetic resin material and mold for injection molding
GB1414291A (en) Moulding deeply profiled articles
DE3260413D1 (en) Stabilized core injection molding of plastic
IT7851843A0 (it) Stampo in special modo per stampaggio ad iniezione per la produzionedi pezzi modellati in caucciu' in particolar modo di anelli apex
KR920004132A (ko) 플라스틱 렌즈 주형 장치
GB1134777A (en) Optical objectives having axially movable components
GB1516714A (en) Method of and apparatus for manufacturing a plastics brush back
ES295489A1 (es) Un procedimiento para adherir un aplique de material termoplastico y un sustrato termoplastico
AR230012A1 (es) Maquina de moldeo de piezas de fundicion por inyeccion bajo presion y metodo de funcionamiento de la operacion en dicha maquina
GB1318792A (en) Apparatus for the manufacture of moulded components
GB1085772A (en) Method of and apparatus for injection moulding of hardenable plastics material
GB912695A (en) Improvements in or relating to methods of and devices for maintaining the follow-up pressure in injection moulds
JPS5595497A (en) Forming method for speaker vibration system
FR2360398A1 (fr) Dispositif pour la fabrication de pieces thermoplastiques par moulage par injection et plus particulierement de moule en materiau thermodurci pour cette fabrication
GB1169121A (en) Use of Epoxide Resins for Casting Spectacle Frames or Parts Thereof
GB1080368A (en) Improvements in or relating to moulds for the production of ophthalmic lenses of moulded thermosetting resin
JPS57205120A (en) Molding of aspherical lens
JPS576738A (en) Cassette mold for injection molding
JPS5257257A (en) Method of injection molding special slender cap via mold having auxiliary movable cavity
JPS54145758A (en) Manufacture of cap with packing and its product
GB1118196A (en) An injection mould for the production of a plastics connection for crossed wires or rods
GB1234677A (US07608600-20091027-C00054.png)
JPS5327651A (en) Method of controlling mold cramping pressure in injection molder

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee