GB2205171B - Diaphragm control device - Google Patents

Diaphragm control device

Info

Publication number: GB2205171B
Authority: GB; United Kingdom
Prior art keywords: control device; diaphragm control; diaphragm; control
Prior art date: 1987-05-22
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

GB8810913A

Other versions

GB2205171A (en

GB8810913D0 (en

Inventor

Harald Kubis

Heinz Schulze

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.)

Pentacon GmbH Foto und Feinwerktechnik

Original Assignee

Pentacon Dresden VEB

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.)

1987-05-22

Filing date

1988-05-09

Publication date

1991-06-12

1987-05-22 Priority claimed from DD30301287A external-priority patent/DD262495A1/en

1987-07-29 Priority claimed from DD30545587A external-priority patent/DD263365A1/en

1988-05-09 Application filed by Pentacon Dresden VEB filed Critical Pentacon Dresden VEB

1988-06-15 Publication of GB8810913D0 publication Critical patent/GB8810913D0/en

1988-11-30 Publication of GB2205171A publication Critical patent/GB2205171A/en

1991-06-12 Application granted granted Critical

1991-06-12 Publication of GB2205171B publication Critical patent/GB2205171B/en

2008-05-09 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- G03B9/02—Diaphragms
- G03B9/06—Two or more co-operating pivoted blades, e.g. iris type

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Diaphragms For Cameras (AREA)

GB8810913A 1987-05-22 1988-05-09 Diaphragm control device Expired - Lifetime GB2205171B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DD30301287A DD262495A1 (en)	1987-05-22	1987-05-22	DEVICE FOR DIGITALLY CONTROLLING THE APERTURE OF A PHOTOGRAPHIC CAMERA
DD30545587A DD263365A1 (en)	1987-07-29	1987-07-29	IRIS CONTROL DEVICE

Publications (3)

Publication Number	Publication Date
GB8810913D0 GB8810913D0 (en)	1988-06-15
GB2205171A GB2205171A (en)	1988-11-30
GB2205171B true GB2205171B (en)	1991-06-12

Family

ID=25748143

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8810913A Expired - Lifetime GB2205171B (en)	1987-05-22	1988-05-09	Diaphragm control device

Country Status (2)

Country	Link
DE (1)	DE3813966A1 (en)
GB (1)	GB2205171B (en)

1988
- 1988-04-26 DE DE19883813966 patent/DE3813966A1/en not_active Withdrawn
- 1988-05-09 GB GB8810913A patent/GB2205171B/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB2205171A (en)	1988-11-30
DE3813966A1 (en)	1988-12-01
GB8810913D0 (en)	1988-06-15

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Legal Events

Date	Code	Title	Description
1993-01-06	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19920509