GB1317690A - Photographic shutter - Google Patents

Photographic shutter

Info

Publication number
GB1317690A
GB1317690A GB3987271A GB3987271A GB1317690A GB 1317690 A GB1317690 A GB 1317690A GB 3987271 A GB3987271 A GB 3987271A GB 3987271 A GB3987271 A GB 3987271A GB 1317690 A GB1317690 A GB 1317690A
Authority
GB
United Kingdom
Prior art keywords
arms
magnetic
electro
bellcrank
shutter
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
GB3987271A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar 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 Ernst Leitz Wetzlar GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB1317690A publication Critical patent/GB1317690A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03B9/08—Shutters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
    • G02B21/362—Mechanical details, e.g. mountings for the camera or image sensor, housings
    • 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
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Shutters For Cameras (AREA)

Abstract

1317690 Photographic shutter ERNST LEITZ GmbH 25 Aug 1971 [9 Sept 1970] 39872/71 Heading G2A A shutter 2 of small axial thickness for microphotographic apparatus comprises a pair of bellcranks 8a, 8b pivotally mounted at 9a, 9b adjacent aperture 11, one arm of each bellcrank being actuable by electro-magnetic means 12, 13 into and out of registry with said aperture. The other bellcrank arms 8a", 8b"co-operate with the electro-magnetic circuits 12a, 13a to move the arms 8a', 8b'. Arms 8a', 8b' may be of non-magnetic material whilst arms 8a", 8b"are magnetic. Alternatively arms 8a", 8b" may be non-magnetic with one or more soft iron pieces attached thereto.
GB3987271A 1970-09-09 1971-08-25 Photographic shutter Expired GB1317690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702044646 DE2044646C3 (en) 1970-09-09 1970-09-09 Electromagnetically operated photographic shutter on photomicrography devices

Publications (1)

Publication Number Publication Date
GB1317690A true GB1317690A (en) 1973-05-23

Family

ID=5781998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3987271A Expired GB1317690A (en) 1970-09-09 1971-08-25 Photographic shutter

Country Status (5)

Country Link
JP (1) JPS5113571B1 (en)
AT (1) AT316304B (en)
CH (1) CH523515A (en)
DE (1) DE2044646C3 (en)
GB (1) GB1317690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2869108A4 (en) * 2012-06-27 2016-06-22 Sony Corp Microscope and shutter mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2869108A4 (en) * 2012-06-27 2016-06-22 Sony Corp Microscope and shutter mechanism

Also Published As

Publication number Publication date
DE2044646A1 (en) 1972-03-16
DE2044646B2 (en) 1973-08-30
CH523515A (en) 1972-05-31
DE2044646C3 (en) 1974-04-04
AT316304B (en) 1974-07-10
JPS5113571B1 (en) 1976-04-30

Similar Documents

Publication Publication Date Title
NL7605760A (en) ELECTROMAGNETIC TWO-WAY VALVE.
FR1192468A (en) Magnetic ferrous alloys, oriented crystallites
FR2315652A1 (en) SOLENOID, ESPECIALLY FOR SOLENOID VALVES
ES198819U (en) A magnetic device. (Machine-translation by Google Translate, not legally binding)
CA931202A (en) Permanent magnet electromagnetic actuator
GB1317690A (en) Photographic shutter
CA929209A (en) Electromagnetic actuator for moving a member
FR1151189A (en) automatic dual-speed electromagnet
CA716545A (en) Low carbon, low alloy ferrous material for magnetic uses
AU201561B2 (en) Improvements in or relating to ferromagnetic cores for static magnetic triggers, arranged ina two-dimensional pattern
AU290854A (en) Improvements in or relating to ferromagnetic cores for static magnetic triggers, arranged ina two-dimensional pattern
CA523458A (en) Casting readily oxidizable alloys
CA533474A (en) Electromagnet adjusting means
CA828285A (en) Proportional magnetic actuator device
AU435902B2 (en) Controls for electro magnetic valves
CA506399A (en) Electro-magnetic actuators
CA505185A (en) Hydraulic brake and actuator means therefor
AU203125B2 (en) Improvements in electromagnetic relays
AU2721771A (en) Magnetic sheet material
CA522089A (en) Electro-magnetic relays
AU5569669A (en) Controls for electro magnetic valves
CH352154A (en) Magnetic recording sheet
CA503742A (en) Solenoid
CA927688A (en) Permanently magnetizable material for magnetic recording devices
AU206617B2 (en) Improvements in electromagnetic relays

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee