GB961804A - Improvements in or relating to flash lamps - Google Patents

Improvements in or relating to flash lamps

Info

Publication number
GB961804A
GB961804A GB2831/63A GB283163A GB961804A GB 961804 A GB961804 A GB 961804A GB 2831/63 A GB2831/63 A GB 2831/63A GB 283163 A GB283163 A GB 283163A GB 961804 A GB961804 A GB 961804A
Authority
GB
United Kingdom
Prior art keywords
zirconium
igniting
filament
bulb
pressure
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
GB2831/63A
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB961804A publication Critical patent/GB961804A/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 Lamp (AREA)
  • Air Bags (AREA)

Abstract

961,804. Flashbulbs. TOKYO SHIBAURA ELECTRIC CO. Ltd. Jan. 23, 1963 [Jan. 23, 1962], No. 2831/63. Heading G2L. In a flash lamp comprising a glass bulb having two lead-in wires passing through the bulb wall and containing a combustion-accelerating gas filling at a pressure not below atmospheric pressure and a mass of finely shredded foil of a readily combustible lightproducing material selected from the group consisting of titanium, zirconium, tantalum and their base alloys, instead of a filament coated with an igniting paste connected to the inner ends of the lead-in wires as an igniting element, there is used a filament consisting of any of the above specified combustible light-producing materials. As described the bulb has an internal volume of 1. 2 c.c and contains 21 mg. of shredded zirconium foil of cross-section 28Á x 55Á and an oxygen filling at a pressure of 3500 mm. Hg., while the igniting filament is of zirconium with a cross-sectional area of 0. 0004 sq. mm. A noble gas may be admixed with the oxygen. Specification 806,101 is referred to.
GB2831/63A 1962-01-23 1963-01-23 Improvements in or relating to flash lamps Expired GB961804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP173562 1962-01-23

Publications (1)

Publication Number Publication Date
GB961804A true GB961804A (en) 1964-06-24

Family

ID=11509806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2831/63A Expired GB961804A (en) 1962-01-23 1963-01-23 Improvements in or relating to flash lamps

Country Status (2)

Country Link
US (1) US3208246A (en)
GB (1) GB961804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412784A1 (en) * 1977-12-23 1979-07-20 Philips Nv FLASH COMBUSTION LAMP

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA588183A (en) * 1959-12-01 C. Fink William Photoflash lamps
US2013371A (en) * 1931-05-05 1935-09-03 Philips Nv Flash light lamp
US2571799A (en) * 1947-03-03 1951-10-16 Hartford Nat Bank & Trust Co Flashlight lamp
US2865186A (en) * 1955-06-20 1958-12-23 Sylvania Electric Prod High-intensity photoflash lamp
US2982119A (en) * 1959-04-27 1961-05-02 Gen Electric Flash lamp
US3045460A (en) * 1960-04-27 1962-07-24 Sylvania Electric Prod Photoflash lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412784A1 (en) * 1977-12-23 1979-07-20 Philips Nv FLASH COMBUSTION LAMP
US4309166A (en) 1977-12-23 1982-01-05 U.S. Philips Corporation Combustion flashbulb

Also Published As

Publication number Publication date
US3208246A (en) 1965-09-28

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