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DE551004C - Flash lamp for photographic purposes - Google Patents

Flash lamp for photographic purposes

Info

Publication number
DE551004C
DE551004C DEH122916D DEH0122916D DE551004C DE 551004 C DE551004 C DE 551004C DE H122916 D DEH122916 D DE H122916D DE H0122916 D DEH0122916 D DE H0122916D DE 551004 C DE551004 C DE 551004C
Authority
DE
Germany
Prior art keywords
flash lamp
photographic purposes
flash
powder mixture
photographic
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
DEH122916D
Other languages
German (de)
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.)
HAUFF LEONAR AKT GES
Original Assignee
HAUFF LEONAR AKT GES
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 HAUFF LEONAR AKT GES filed Critical HAUFF LEONAR AKT GES
Priority to DEH122916D priority Critical patent/DE551004C/en
Application granted granted Critical
Publication of DE551004C publication Critical patent/DE551004C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Description

Blitzlichtlampe für photographische Zwecke Die bekannten Blitzlichtlampen für photographische Zwecke, bei denen eine Blitzlichtpulvermischung in losem Zustande in einem mehr oder weniger evakuierten, gegebenenfalls mit verdünntem Gas gefüllten Glasgefäß angeordnet ist, sind niemals ausnahmslos sprengsicher, da die Verbrennung des Blitzlichtpulvers wegen seiner großen oxydierbaren Oberfläche und damit die Drucksteigerung des Gefäßinhalts durch die Verbrennungsgase in so kurzer Zeit, gewissermaßen schlagartig, erfolgt, daß Gefäße, die irgendeine schwache Stelle haben, zersprengt werden. Dieser Nachteil wird gemäß der Erfindung dadurch beseitigt, daß dem Blitzlichtpulver ein festes Gefüge gegeben wird. Dies kann z. B. in der Weise geschehen, daß die Mischung durch Pressung geformt oder mit einem Bindemittel zu einer zusammenhängenden Masse vereinigt wird. Die Erfahrung hat gelehrt, daß die Verbrennung an einem geformten Blitzlichtkörper so viel langsamer erfolgt, daß das Gefäß dem gesteigerten Druck stets standhält, aber immer noch schnell genug, um den Blitzlichtcharakter der Lampe, d. h. einer für Momentaufnahmen geeigneten Lichtquelle, nicht aufzuheben.Flash lamp for photographic purposes The known flash lamps for photographic purposes in which a flash powder mixture in a loose state in a more or less evacuated, possibly filled with diluted gas Glass vessel arranged are never invariably blast-proof, as the combustion of the flash powder because of its large oxidizable surface and thus the Increase in pressure of the contents of the vessel through the combustion gases in such a short time, so to speak abruptly, it happens that vessels which have some weak point bursts will. This disadvantage is eliminated according to the invention in that the flash light powder a solid structure is given. This can e.g. B. done in such a way that the Mixture molded by pressing or with a binder to form a coherent Mass is united. Experience has taught that the burn is formed on a Flashlight body takes place so much more slowly that the vessel can withstand the increased pressure always withstands, but still fast enough to illuminate the flashlight character of the lamp, d. H. a light source suitable for snapshots.

Claims (1)

PATENTANSPRUCFI: Blitzlichtlampe für photographische Zwecke, bei der eine Blitzlichtpulvermischung in einem mehr oder weniger evakuierten, gegebenenfalls mit verdünntem Gas gefüllten Glasgefäß angeordnet ist, dadurch gekennzeichnet, daß das Pulvergemisch, gegebenenfalls mit einem Bindemittel, zu einem zusammenhängenden Körper geformt wird.PATENT APPLICATION: Flash lamp for photographic purposes in which a flash powder mixture in a more or less evacuated, if necessary glass vessel filled with dilute gas is arranged, characterized in that the powder mixture, optionally with a binder, to form a cohesive one Body is shaped.
DEH122916D 1929-08-14 1929-08-14 Flash lamp for photographic purposes Expired DE551004C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH122916D DE551004C (en) 1929-08-14 1929-08-14 Flash lamp for photographic purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH122916D DE551004C (en) 1929-08-14 1929-08-14 Flash lamp for photographic purposes

Publications (1)

Publication Number Publication Date
DE551004C true DE551004C (en) 1932-05-25

Family

ID=7174233

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH122916D Expired DE551004C (en) 1929-08-14 1929-08-14 Flash lamp for photographic purposes

Country Status (1)

Country Link
DE (1) DE551004C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220225A (en) * 1963-01-31 1965-11-30 Westinghouse Electric Corp Photoflash lamp with printed circuit lead-in conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220225A (en) * 1963-01-31 1965-11-30 Westinghouse Electric Corp Photoflash lamp with printed circuit lead-in conductors

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