GB1421091A - Photoflash lamps - Google Patents

Photoflash lamps

Info

Publication number
GB1421091A
GB1421091A GB1874174A GB1874174A GB1421091A GB 1421091 A GB1421091 A GB 1421091A GB 1874174 A GB1874174 A GB 1874174A GB 1874174 A GB1874174 A GB 1874174A GB 1421091 A GB1421091 A GB 1421091A
Authority
GB
United Kingdom
Prior art keywords
bulb
conductors
flash
sleeve
photoflash lamps
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
GB1874174A
Other languages
English (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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1421091A publication Critical patent/GB1421091A/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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
GB1874174A 1973-05-02 1974-04-29 Photoflash lamps Expired GB1421091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00356459A US3816054A (en) 1973-05-02 1973-05-02 Photoflash lamp having non-shorting construction

Publications (1)

Publication Number Publication Date
GB1421091A true GB1421091A (en) 1976-01-14

Family

ID=23401501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1874174A Expired GB1421091A (en) 1973-05-02 1974-04-29 Photoflash lamps

Country Status (6)

Country Link
US (1) US3816054A (ja)
JP (1) JPS5015546A (ja)
BE (1) BE814487A (ja)
CA (1) CA1004052A (ja)
DE (1) DE2420813A1 (ja)
GB (1) GB1421091A (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009987A (en) * 1973-05-01 1977-03-01 U.S. Philips Corporation Electric lamp having an internal switching mechanism
US3945697A (en) * 1973-10-15 1976-03-23 Gte Sylvania Incorporated Method of manufacturing a photoflash lamp having an indicator-insulator
US3897196A (en) * 1974-02-21 1975-07-29 Gte Sylvania Inc Photoflash lamp with sealed bead
US3919750A (en) * 1974-02-21 1975-11-18 Gte Sylvania Inc Method of making photoflash lamp ignition mount structure with shaped bead
US3865537A (en) * 1974-03-06 1975-02-11 Gte Sylvania Inc Moisture indicator for photoflash lamp
CA1044909A (en) * 1974-09-25 1978-12-26 Donald E. Armstrong Photoflash lamp
US3930784A (en) * 1974-12-19 1976-01-06 General Electric Company Photoflash lamp having non-shorting construction
US4040777A (en) * 1975-04-28 1977-08-09 General Electric Company Flash lamp array having shorting lamps
US4008040A (en) * 1975-11-24 1977-02-15 Gte Sylvania Incorporated Photoflash lamp and method of making same
US4049369A (en) * 1975-12-29 1977-09-20 Gte Sylvania Incorporated Photoflash lamp and multilamp unit with electrostatic protection
JPS5369631A (en) * 1976-12-01 1978-06-21 Gen Electric Miniature flash lamp for photographing and method of manufacturing same
US4249887A (en) * 1977-12-30 1981-02-10 Westinghouse Electric Corp. Photoflash lamp having gap-fire ignition mount, and method of making the mount
US4696641A (en) * 1986-08-11 1987-09-29 Gte Products Corporation Primer material and photoflash lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071369A (en) * 1934-01-24 1937-02-23 Harry A Williams Flash lamp
US3556699A (en) * 1968-02-05 1971-01-19 Tokyo Shibaura Electric Co Discharge ignition type photoflash lamp
JPS5026754Y2 (ja) * 1971-05-29 1975-08-09

Also Published As

Publication number Publication date
CA1004052A (en) 1977-01-25
JPS5015546A (ja) 1975-02-19
DE2420813A1 (de) 1974-11-21
US3816054A (en) 1974-06-11
BE814487A (fr) 1974-09-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee