NL7604952A - Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps - Google Patents

Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps

Info

Publication number
NL7604952A
NL7604952A NL7604952A NL7604952A NL7604952A NL 7604952 A NL7604952 A NL 7604952A NL 7604952 A NL7604952 A NL 7604952A NL 7604952 A NL7604952 A NL 7604952A NL 7604952 A NL7604952 A NL 7604952A
Authority
NL
Netherlands
Prior art keywords
lamps
circuit board
board
photography
triggered
Prior art date
Application number
NL7604952A
Other languages
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7604952A priority Critical patent/NL7604952A/en
Priority to CA277,711A priority patent/CA1090410A/en
Priority to GB19068/77A priority patent/GB1518023A/en
Priority to IT23300/77A priority patent/IT1085066B/en
Priority to US05/794,397 priority patent/US4154569A/en
Priority to ES458591A priority patent/ES458591A1/en
Priority to DE2720568A priority patent/DE2720568C3/en
Priority to BE177410A priority patent/BE854425A/en
Priority to JP5272177A priority patent/JPS52137325A/en
Priority to FR7714209A priority patent/FR2351430A1/en
Publication of NL7604952A publication Critical patent/NL7604952A/en

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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0183—Dielectric layers
    • H05K2201/0191—Dielectric layers wherein the thickness of the dielectric plays an important role
    • 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
    • H05K2201/03—Conductive materials
    • H05K2201/0332—Structure of the conductor
    • H05K2201/0388—Other aspects of conductors
    • H05K2201/0394—Conductor crossing over a hole in the substrate or a gap between two separate substrate parts
    • 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
    • H05K2201/09—Shape and layout
    • H05K2201/09009—Substrate related
    • H05K2201/09036—Recesses or grooves in insulating substrate
    • 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
    • H05K2203/175—Configurations of connections suitable for easy deletion, e.g. modifiable circuits or temporary conductors for electroplating; Processes for deleting connections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

The multiple flash light for photography, consists of several flash lamps mounted on a printed circuit board held inside a housing. Break switches are set into the circuit board and face the lamps. The switches are triggered by the heat radiated by the lamps as they flash. Each switch consists of a thin region of the circuit board. A conductor is applied to this region and is crossed by a slot. The switches are located on the opposite side of the board from the lamps and may be made at the same time as the circuit board.
NL7604952A 1976-05-10 1976-05-10 Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps NL7604952A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL7604952A NL7604952A (en) 1976-05-10 1976-05-10 Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps
CA277,711A CA1090410A (en) 1976-05-10 1977-05-04 Photographic flashlamp unit
GB19068/77A GB1518023A (en) 1976-05-10 1977-05-06 Flashbulb unit
IT23300/77A IT1085066B (en) 1976-05-10 1977-05-06 FLASHING UNIT
US05/794,397 US4154569A (en) 1976-05-10 1977-05-06 Flashlamp unit
ES458591A ES458591A1 (en) 1976-05-10 1977-05-07 Flashlamp unit
DE2720568A DE2720568C3 (en) 1976-05-10 1977-05-07 Flashlight unit
BE177410A BE854425A (en) 1976-05-10 1977-05-09 FLASH LAMP UNIT
JP5272177A JPS52137325A (en) 1976-05-10 1977-05-10 Flash lamp unit
FR7714209A FR2351430A1 (en) 1976-05-10 1977-05-10 FLASH LAMPS UNIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7604952A NL7604952A (en) 1976-05-10 1976-05-10 Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps

Publications (1)

Publication Number Publication Date
NL7604952A true NL7604952A (en) 1977-11-14

Family

ID=19826156

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7604952A NL7604952A (en) 1976-05-10 1976-05-10 Multiple flash unit for photography - has lamps on printed circuit board with break switches formed as thin regions on board to be triggered by heat from lamps

Country Status (1)

Country Link
NL (1) NL7604952A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed