GB1425764A - Photoflash bulb - Google Patents

Photoflash bulb

Info

Publication number
GB1425764A
GB1425764A GB2084873A GB2084873A GB1425764A GB 1425764 A GB1425764 A GB 1425764A GB 2084873 A GB2084873 A GB 2084873A GB 2084873 A GB2084873 A GB 2084873A GB 1425764 A GB1425764 A GB 1425764A
Authority
GB
United Kingdom
Prior art keywords
anvil
head
tube
flash
bulb
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
GB2084873A
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 to IE62373A priority Critical patent/IE37550B1/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB1425764A publication Critical patent/GB1425764A/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
    • G03B15/04—Combinations of cameras with non-electronic flash apparatus; Non-electronic flash units
    • G03B15/0478—Combinations of photographic apparatus with percussion type flash ignition systems
    • G03B15/0484—Constructional details of the flash apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1425764 Flash-bulbs PATENT-TREUHAND GES FUR ELEKTRISCHE GLUHLAMPEN mbH 2 May 1973 [20 June 1972] 20848/73 Heading G2L In a percussively ignitable flash-bulb having an anvil 5 disposed in a metal tube 1 sealed to the envelope 4 the anvil is supported in the tube by means of a head 6 which fits closely inside the end 2 of the tube and is locked therein by an annular indentation 9, the length of the head being approximately twice its diameter. The section 7 of the anvil which is coated with fulminating material 8 is of smaller diameter than the head 6 and may be cylindrical, as shown, or conical.
GB2084873A 1972-05-04 1973-05-02 Photoflash bulb Expired GB1425764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IE62373A IE37550B1 (en) 1972-05-04 1973-04-19 Process for the manufacture of inorganic acid addition salts of urea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722230052 DE2230052A1 (en) 1972-06-20 1972-06-20 FLASH LAMP

Publications (1)

Publication Number Publication Date
GB1425764A true GB1425764A (en) 1976-02-18

Family

ID=5848226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2084873A Expired GB1425764A (en) 1972-05-04 1973-05-02 Photoflash bulb

Country Status (3)

Country Link
JP (1) JPS4958824A (en)
DE (1) DE2230052A1 (en)
GB (1) GB1425764A (en)

Also Published As

Publication number Publication date
DE2230052A1 (en) 1974-01-03
JPS4958824A (en) 1974-06-07

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Legal Events

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