GB1515015A - Radiation switches for photoflash units - Google Patents

Radiation switches for photoflash units

Info

Publication number
GB1515015A
GB1515015A GB3374475A GB3374475A GB1515015A GB 1515015 A GB1515015 A GB 1515015A GB 3374475 A GB3374475 A GB 3374475A GB 3374475 A GB3374475 A GB 3374475A GB 1515015 A GB1515015 A GB 1515015A
Authority
GB
United Kingdom
Prior art keywords
radiation
silver
flash
radiation switches
photoflash units
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
GB3374475A
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 GB1515015A publication Critical patent/GB1515015A/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
    • G03B15/0452—Electrical ignition means connected to the shutter
    • G03B15/0457—Ignition mechanisms for sequential ignition of flash lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0293—Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0104—Properties and characteristics in general
    • H05K2201/0112—Absorbing light, e.g. dielectric layer with carbon filler for laser processing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/17—Post-manufacturing processes
    • H05K2203/173—Adding connections between adjacent pads or conductors, e.g. for modifying or repairing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Stroboscope Apparatuses (AREA)
  • Fuses (AREA)
  • Contacts (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Organic Insulating Materials (AREA)
GB3374475A 1974-09-23 1975-08-13 Radiation switches for photoflash units Expired GB1515015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50810574A 1974-09-23 1974-09-23

Publications (1)

Publication Number Publication Date
GB1515015A true GB1515015A (en) 1978-06-21

Family

ID=24021402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3374475A Expired GB1515015A (en) 1974-09-23 1975-08-13 Radiation switches for photoflash units

Country Status (6)

Country Link
JP (1) JPS5143133A (enExample)
BE (1) BE833034A (enExample)
BR (1) BR7506160A (enExample)
CA (1) CA1052893A (enExample)
FR (1) FR2285631A1 (enExample)
GB (1) GB1515015A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127221A (en) * 1982-09-06 1984-04-04 Secr Defence Radiation-controlled electrical switches

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087233A (en) * 1976-10-18 1978-05-02 Gte Sylvania Incorporated Radiation switch for photoflash unit
JPS53154944U (enExample) * 1977-05-12 1978-12-05
US4320440A (en) * 1979-03-19 1982-03-16 Gte Products Corporation Connect switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127221A (en) * 1982-09-06 1984-04-04 Secr Defence Radiation-controlled electrical switches

Also Published As

Publication number Publication date
FR2285631B1 (enExample) 1978-04-07
FR2285631A1 (fr) 1976-04-16
BE833034A (fr) 1976-03-03
BR7506160A (pt) 1976-08-03
CA1052893A (en) 1979-04-17
DE2541810A1 (de) 1976-04-01
DE2541810B2 (de) 1977-03-31
JPS5332253B2 (enExample) 1978-09-07
JPS5143133A (en) 1976-04-13

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Legal Events

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