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GB2026720B - Electronic flash device - Google Patents

Electronic flash device

Info

Publication number
GB2026720B
GB2026720B GB7923968A GB7923968A GB2026720B GB 2026720 B GB2026720 B GB 2026720B GB 7923968 A GB7923968 A GB 7923968A GB 7923968 A GB7923968 A GB 7923968A GB 2026720 B GB2026720 B GB 2026720B
Authority
GB
United Kingdom
Prior art keywords
flash device
electronic flash
electronic
flash
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
GB7923968A
Other versions
GB2026720A (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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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
Priority claimed from DE2830321A external-priority patent/DE2830321C3/en
Priority claimed from DE19782840922 external-priority patent/DE2840922C3/en
Priority claimed from DE19792902709 external-priority patent/DE2902709A1/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB2026720A publication Critical patent/GB2026720A/en
Application granted granted Critical
Publication of GB2026720B publication Critical patent/GB2026720B/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0514—Separate unit
    • G03B2215/0517—Housing
    • G03B2215/0525—Reflector
    • G03B2215/0528—Reflector movable reflector, e.g. change of illumination angle or illumination direction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
GB7923968A 1978-07-10 1979-07-10 Electronic flash device Expired GB2026720B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2830321A DE2830321C3 (en) 1978-07-10 1978-07-10 Electronic flash unit
DE19782840922 DE2840922C3 (en) 1978-09-20 1978-09-20 Electronic flash unit
DE19792902709 DE2902709A1 (en) 1979-01-24 1979-01-24 Camera electronic flash gun - has light source and trough-shaped reflector in cylindrical sleeve casing to provide direct and indirect illumination simultaneously

Publications (2)

Publication Number Publication Date
GB2026720A GB2026720A (en) 1980-02-06
GB2026720B true GB2026720B (en) 1982-09-29

Family

ID=27187599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7923968A Expired GB2026720B (en) 1978-07-10 1979-07-10 Electronic flash device

Country Status (3)

Country Link
FR (1) FR2431090A1 (en)
GB (1) GB2026720B (en)
IT (2) IT1119019B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229272A1 (en) * 1982-08-05 1984-02-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München ELECTRONIC FLASHING DEVICE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127113A (en) * 1964-03-31 Photographic flash tube and reflector
SE308699B (en) * 1968-04-23 1969-02-24 Vaegbelysning Ab
NL7014266A (en) * 1970-09-29 1972-04-04
DE7815176U1 (en) * 1978-05-19 1979-02-08 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen LIGHTING DEVICE

Also Published As

Publication number Publication date
IT7968422A0 (en) 1979-07-09
FR2431090B1 (en) 1985-03-08
FR2431090A1 (en) 1980-02-08
IT7953403V0 (en) 1979-07-09
GB2026720A (en) 1980-02-06
IT1119019B (en) 1986-03-03

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Legal Events

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