GB1213320A - A camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive - Google Patents

A camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive

Info

Publication number
GB1213320A
GB1213320A GB4819868A GB4819868A GB1213320A GB 1213320 A GB1213320 A GB 1213320A GB 4819868 A GB4819868 A GB 4819868A GB 4819868 A GB4819868 A GB 4819868A GB 1213320 A GB1213320 A GB 1213320A
Authority
GB
United Kingdom
Prior art keywords
lamp
electro
signal during
camera
delayed action
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
GB4819868A
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.)
Hittech Prontor GmbH
Original Assignee
Prontor Werk Alfred Gauthier 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 Prontor Werk Alfred Gauthier GmbH filed Critical Prontor Werk Alfred Gauthier GmbH
Publication of GB1213320A publication Critical patent/GB1213320A/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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

1,213,320. Camera shutter timing device. PRONTOR-WERK ALFRED GAUTHIER G.m.b.H. Oct.11, 1968 [Oct.26, 1967], No.48198/68. Heading G2A. The state of an electro-mechanical shutter timing device with delayed action is indicated by a flashing light signal during the delay time and a continuous light signal during the exposure time. The timing and signalling device is as described in Specification 1,187,724 allowing operation of a flashing lamp signal during the delay period but in addition, allows the lamp L to be energized continuously, when the switch S 4 is changed over on completion of the delay period until the shutter closes, by connection of battery E to the lamp circuit through a resistor R 15 . In a second embodiment Fig.3 (not shown) the lamp circuit is connected directly to transistor T 6 in the exposure timing circuit so that on activation of the latter at the end of the delay period a transistor (T 10 ) is biased to hold the lamp circuit in a continuously operating mode.
GB4819868A 1967-10-26 1968-10-11 A camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive Expired GB1213320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671597365 DE1597365B1 (en) 1967-10-26 1967-10-26 Photographic camera with electronically controlled devices for self-timer recordings and exposure time

Publications (1)

Publication Number Publication Date
GB1213320A true GB1213320A (en) 1970-11-25

Family

ID=5680587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4819868A Expired GB1213320A (en) 1967-10-26 1968-10-11 A camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive

Country Status (3)

Country Link
CH (1) CH480657A (en)
DE (1) DE1597365B1 (en)
GB (1) GB1213320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079398A (en) * 1974-07-15 1978-03-14 Canon Kabushiki Kaisha Self-timer
US4134660A (en) * 1976-07-07 1979-01-16 Canon Kabushiki Kaisha Self timer of camera

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157908B (en) * 1962-03-09 1963-11-21 Gauthier Gmbh A Photographic camera with built-in or attachable front drive
DE1933448U (en) * 1965-10-29 1966-02-24 Agfa Gevaert Ag PHOTOGRAPHIC CAMERA.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079398A (en) * 1974-07-15 1978-03-14 Canon Kabushiki Kaisha Self-timer
US4134660A (en) * 1976-07-07 1979-01-16 Canon Kabushiki Kaisha Self timer of camera

Also Published As

Publication number Publication date
DE1597365B1 (en) 1970-09-24
CH480657A (en) 1969-10-31

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Legal Events

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