• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1525721 Flash-lamp arrays GENERAL ELECTRIC CO 27 June 1975 [3 July 1974] 27301/75 Heading G2X An electrically fired flash-lamp unit has a connector tab 18' on which one of the electrical terminals 31' extends nearer the end of the tab than the other terminal(s), so that it is more readily touched when the unit is handled. The terminal 31' is connected to circuitry which has a larger stray capacitance to ground e.g. by including the reflector, than that connected to the other terminal(s). This arrangement reduces the likelihood of a lamp being accidentally fired by stray electrostatic charges when the unit is touched. The embodiment shown has two connector tabs 18, 18' each one being electrically connected by sequential firing circuitry to the group of lamps remote from the respective tab. Additionally a short may be applied across the adjacent lamp group.
    公开号:SU865140A3
    申请号:SU762374599
    申请日:1976-06-22
    公开日:1981-09-15
    发明作者:Томпсон Коут Пол
    申请人:Дженерал Электрик Компани (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to a printed circuit board for a planar signal matrix used in the field of multi-bulb lamp flash units, such as flash units and planar grids.
    A known printed circuit board for multi-lamp bulbs of flashlights, Q containing a substrate with two electrical circuits placed on it for local connection of blocks of flashlights in the form of printed conductors, contact pads and located on opposite edges of the printed contacts billet.
    This kind of lamp-flash units, and in particular, if they use types of high-voltage lamp-flash units, which give a flash only under the influence of high (for example 1000 or 2000 V) pulses of low current energy, tend to to electrostatic ignition 25 of one or several lamps, if the connecting terminal is touched by a person or object having an electrostatic charge, i.e. have low reliability.
    The purpose of the invention is to increase reliability.
    The goal is achieved in that in a printed circuit board for multi-bulb photo flash units containing a substrate. With two electrical circuits placed on it for locally connecting the photo flash units in the form of printed conductors of the contact pads and printed contacts of each the circuit is made in the form of three printed conductors arranged in parallel, with two side contact conductors shorter than its central conductor electrically connected to each oh a pair of lamp flash.
    The center conductor of contact is wider than its side conductors.
    FIG. 1 Give a multi-bulb lamp-flash unit, a perspective image; in fig. 2 shows section A-A in FIG. 1 in FIG. 3 is a printed circuit board to which the photo-spikes in the multi-bulb unit are connected, inserted into the socket, front view. The multi-lamp unit 1 is a photo-flash lamp, shown as a block of the type of grid planes and containing a whole series of lit electric lamps. flashlights ,. it is equipped on its lower side with a replaceable connecting print contact 2 adapted for precise insertion into the socket 3 (Fig. 3) of the camera or the code device of the photo-flash lamp. The multi-lamp unit 1 is provided with a second interchangeable connecting print contact 4 on its upper side or its upper end, whereby unit 1 can be attached to slot 3 in either of two orientations, i.e. either by the printed contact 2 or by the printed contact 4 inserted into the socket. Unit 1 contains the upper group 5 of lamp flash units 6,7,8 and 9 and the lower group 10 of lamp flash lamps 11,12,13 and 14. Reflectors 15,16,17,18,19,20,21 and 22 are located behind the corresponding lamp flashes in such a way that when each lamp is turned on to give a flash, its light is projected forward from the multi-bulb unit 1.
    With the orientation of the multi-bulb unit 1 inserted into the socket 3 (Fig. 3), only the upper four lamps of the grille, which constitute the upper group 5, can be ignited to give a flash, and the four lamps of the lower group 10 are inactive and not ignited. Thus, the described unwanted red-eye effect is reduced or eliminated, since those of the grill flashlights. which can be ignited to give a flash, are grouped relatively far from slot 3 and, therefore, from the camera lens axis of a multi-bulb unit. Unit 1 can be removed from slot 3 either before all the lamps of the upper group 5 are lit, or after that and can be rotated so that the upper printed contact 4 becomes the lower printed contact that is inserted into the socket 3. After that, a group of 10 lamps becomes the upper group and ignites to give a flash of its lamp, whereby the red-eye effect is again reduced or eliminated since the active lamps are relatively far from socket 3 and, therefore, from the axis of the camera lens.
    Electrical connection points are provided on printed contacts 2 and 4 and,. if scheml flash sequences are included in a multi-lamp flash unit, for example, as shown in FIG. 3
    Thus, the printed contact 2 contains a pair of electrical terminals 23 and 24, and the printed contact 4 contains a pair of terminals 25 and 26. Each connecting printed contact 2 and 4 contains
    an additional connecting terminal 27 and 28, respectively, connected to the lower or inoperative lamp group for shorting the inoperative lamp group when the unit is connected to the socket 3.
    FIG. 3 shows a board 29 with peshechal circuits, which may be inside the case of block 1, behind reflectors 15,16,17,18,19,20,21 and 22, etc. and which supports flashlights with their lead wires and de-energizes the sequential ignition of each lamp group. Interchangeable print connectors 2 and 4 can be formed as one unit with the board 29 with printed circuits at its opposite ends, as shown. The upper half of printed circuits is an inverted mirror image of the lower half of printed circuits.
    The sockets 3 of the camera for the multi-lamp unit 1 of the lamp flashlights are equipped with a pair of contacts 30 and 31, which cooTBeTc is directly connected to the terminals with terminals 23 and 24 (or 25 and 26) of the multi-lamp lamp unit of the flashlights when they are connected to the sockets 3. Additional contact 32 is electrically connected to terminal 30 and comes into contact with a terminal 27 (or 28) of a multi-lamp photo flash unit.
    A source of ignition pulses, which may be contained within a chamber or an adapter of a multi-lamp lamp unit, is connected to contacts 30 and 31 of socket 3. The type of ignition pulse generated by the source and supplied through contacts 30 and 31 depends on the type of lamp used in the multi-lamp. unit 1 lamp flash. If in block 1 low voltage filament type lamps are used, then the source of the incendiary impulse may be a battery of cells, or a type of battery discharge through a capacitor, which creates a pulse of about 3 to 5 V or more synchronously with the camera shutter opening and more sufficient to light a single flash lamp.
    A printed circuit board 29 shown in FIG. 3 is in orientation when the connecting print contact 4 is turned downward and inserted into the socket 3, whereby the terminals 25 and 26 of the printed circuit board are respectively in electrical contact with the contacts 30 and 31. the sockets. Terminal 25 of the printed circuit board is a part of the continuous conductive line on the board that connects with one lead wire of each of the eight lamp flashes in the block at points 33,34,35 and 36, etc. by soldering welding or crimping. In the reflectors at the base of the lamps, holes are made that allow the connections of the lead wires to the board to be made to printed circuits. The printed circuit board output is a portion of the conductor line that connects to the lead-in wire 37 of the photo-flash lamp 8 at point 38 and ends at the terminals 39.40 and 41 of the radiation switch, respectively, located near the flash-lamp bulbs 8.9 and 7. The conductive jumper of the printed circuit board is connected to the remaining lead wire of the photo-flash lamp at point 42 and ends at the radiation switch terminal 43. A conductive transfer board 44 of the printed circuit board is connected to the remaining portion of the input wire of the photo-flash lamp at point 45 and ends at the radiation switch terminal 46. Similarly, the conductive pen 47 of the printed circuit board is connected to the remaining wire of the lamp-flash unit 6 at point 48 and ends at the radiation switch terminal 49. The radiation switches 50.51 and 52, respectively, are arranged so that they are in a state of contact and constitute bridges, respectively, the output switch 39-43, 40-46 and 4149. The material for the radiation switches 50 51 and 52 can be a material that initially has an open circuit or a large resistance and its resistance becomes zero or small when the material receives radiation in the form of heat and / or light from the corresponding adjoining lamp after The lamp is turned on to give a flash. For this purpose, each of the switches 50.51 and 52 of the radiation, respectively, is located behind the lamp-flash unit 8.9 and 7 and next to it. Windows in the form of transparent sections or holes 53 may be provided in reflectors in front of the switches, as shown in FIG. 2 to facilitate radiation transfer. A suitable material for radiation switches 50-52 is silver oxide dispersed in a binder. Such as polyvinyl resin. Each of these radiation switches, after receiving radiation of heat and / or light from an adjacent lamp, when it is ignited to give a flash, switches from an open circuit or a large resistance to a closed circuit or a low resistance between the contacts of the switch on the head with printed circuits. The bottom part of the printed circuit board is essentially an inverted mirror image of the same circuit shown on the top of the printed circuit board. It should be noted that the circuit starts from pins 25 and 26, at the bottom of the printed circuit board diagrams and goes upwards in order to activate the upper half of the printed circuit board. Similarly, when this unit is turned in reverse and the printed contact 4 is inserted into the slot, the contacts of the board with printed circuits by terminals 25 and 26 are connected to the lamps and activate those that are in the upper half of the printed circuit board and therefore in the upper half of the lamp unit 1 -flashes. Thus, a desirable characteristic is obtained, by virtue of which it lights up in order to give a flash, only a group of lamps located relatively further from the object's axis, due to which the undesirable red-eye effect is reduced or eliminated altogether. An additional connecting terminal 27 at the interchangeable printed contact 4 is connected through the portion of the printed circuit 54 to the connection point 55 for the flash lamp 12, which is the first flash lamp in the ignition queue to flash when the grille is reversed, so that pins 25 and 26 are connected via jacks 3 to an incendiary source. Since the contacts 30 and 31 of this socket are electrically short-circuited together, they electrically short-circuit together the terminals 25 and 27 of the printed contact, the terminals 25 and 26 of the inoperative lower group of lamps are also short-circuited and thus the circuit of the inactive lamp is shortened. Similarly, when this block is turned in reverse, pins 30 and 32 are electrically short-circuited, pins 25 and 28 and pins 25 and 26 are connected, thus, the input of the inactive lamp circuit is short-circuited. This short-circuiting of an inoperative lamp circuit prevents the accidental flash of an inoperative lamp by means of a parasitic capacitance creating an incendiary impulse. Of course, this precaution is useful only when inactive lamps have not yet been lit and there is no need for this precaution when these lamps have already been lit. Shown in FIG. 3 scheme, operates as follows. Assume that none of the four lamps in the upper half of block 1 has yet been lit, after the appearance of the first incendiary impulse from the source, this impulse is directly supplied to the lead wires of the steam lamp of the flashlight 8, whereby the lamp goes off to give a flash
    which forms an open circuit between its lead wires. The radiation of heat and / or light from the flash of the first lamp 8 causes the adjacent radiation switch 50 to make a closed circuit between terminal 39 and radiation switch 43 or a small resistance value, whereby electrically connecting the output of the board to printed circuits at point 42 with terminal 25 of the second lamp at point 42 of the compound. At the moment when this occurs, this incendiary impulse decreases with a magnitude which is insufficient to force the second lamp 9 to give a flash. When the next incendiary impulse occurs, it is fed through the now-closed radiation switch 50 to the lead wires of the second lamp 9 of the flash, then the second lamp-flash flashes 9, causing the radiation switch 51 to go to zero or small resistance and now the second flashlight 9 has an open circuit or a large resistance between its lead wires. When the next ignition pulse appears, it is fed through the now closed radiation switch 51 to A re-flash lamp 7 through its lead wires that connect to the printed circuit at points 35 and 45, whereby this lamp is ignited and becomes an open circuit, and the radiation from it causes the radiation switch 52 to become a substantially closed circuit. through his contacts. Thus, the next incendiary impulse is fed through the now closed switch 52 to the lead-in wire of the fourth flash lamp 6, which is connected to the circuit at points 36 and 48, whereby the lamp must produce a flash. Since this lamp is the last lempa in the active (active) group, it does not play as the input wires after the flash will be an open or closed circuit. If desired, on the basis of the principles just described, additional flashlights, emitters and electrical conductors can be used.
    When the multi-bulb lamp block turns off the reverse and the printing contact pin 4 is inserted into the socket, a group of lamps that becomes upper and relatively more distant from the axis of the lens is in the current circuit and ignites to give flashes in the same way as described.
    In accordance with the present invention, groups of conclusions 23, 24 and 27 are formed and positioned so that when they are physically influenced by a person, or any other object, it would be more likely that this physical effect would be on output 25, which connects with the lead wires of each of the flash lamps, instead of, or in addition, exerting a physical impact on the other leads. In the preferred embodiment of the present invention, this is achieved by fabricating pin 25 (longer than the other leads so that it comes closer to the end of the printed contact 2 or 4). In addition, pin 25 is made wider than other leads in order to increase the likelihood of touching it (exerting a physical impact on it) instead of, or in addition to touching, other conclusions when the lamp unit is in circulation.
    Common pins 25 and connecting to the input wires of each of the lamppotops in this multi-bulb unit, have a relatively large amount of parasitic capacitance, taking into account the influence of the ground, than any other conclusions and when this more easily accessible for physical impact output is exposed to physical impact electrostatically charged person or object, a part of the energy of the charge is dissipated through a relatively large capacity to the mass of the general scheme of connections, rather than passes through pathogens la MP-flash and, next. for example, through a relatively smaller capacitance on the mass of the remaining circuits. A one-time physical effect on the common pin 25 and one or more of the other leads cannot cause an electrostatic flash, since the same voltage to both input leads of these flashlights. Usually, if the electrostatic charge is large enough for the likelihood of a lamp to flash, then the contact is in the form of a spark between a common pin 25 and an electrostatic finger or object. Since common leads 25 are electrically connected together and cyujecTByeT is more likely to touch them than to other leads, there is a reduced likelihood of an accidental electrostatic flash of flash lamps when a person holds the unit by one connecting printed contact, transferring it to another person who takes it for another printed contact, or when holding the unit for one connecting printing contact, all other connecting printing contact in the camera socket, provided that the contacts of the socket have with as
    this is shown in FIG. 3, so that the common pin 25 comes into first contact with the common pin 30. With this design it is unlikely that it could simultaneously have a physical impact on the common and one of the other leads from people or objects having different electric polarities that will accidentally light the lamp.
    In order to increase the parasitic capacitance, taking into account the effect of the ground of the overall wiring diagram and therefore further reduce the likelihood of accidental electrostatic ignition of the lamps, the screen element having a large area is connected to the general wiring diagram. The output way to achieve this is to provide an integral multi-reflex unit of substantially uniform dimensions with the unit 1 of flashlights, which is shaped to provide individual reflectors 15 and 16, etc., made of metal or plastics with metallic coating and electrically connected to the general connection circuit 55 by means of a wire 56. (Fig. 2).
    权利要求:
    Claims (2)
    [1]
    1. A printed circuit board for multi-lamp units of flashlights containing a substrate with two electrical circuits placed on it for local connection of the blocks of flashlights in the form of printed conductors, contact pads and placed on opposite edges of the printed contacts billet, characterized in that increase reliability, the printed contact of each chip is made in the form of three printed conductors arranged in parallel, with two side contact conductors shorter than its central conductor, It is connected critically with each pair of flashlights.
    i.
    .
    [2]
    2. A printed circuit board according to claim 1, which is wild with that cent; The contact conductor is wider than the lateral conductors.
    Sources of information taken into account in the examination
    1. US Patent No. 3598985, cl. 240-1-3, 1971 (prototype).
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    类似技术:
    公开号 | 公开日 | 专利标题
    US3941992A|1976-03-02|Flash array having shielded switching circuit
    SU865140A3|1981-09-15|Printed circuit for multilamp blocks of lamp photoflashes
    US3952320A|1976-04-20|Multiple flash lamp unit
    SU965373A3|1982-10-07|Flash tube cluster
    US4133023A|1979-01-02|Flash lamp array having electrical shield
    US4164007A|1979-08-07|Multilamp photoflash unit
    US3912442A|1975-10-14|Connector for photoflash array
    CA1091205A|1980-12-09|Last-flash indicator for photoflash array
    US4097220A|1978-06-27|Flash lamp array having shorting lamps
    US4019043A|1977-04-19|Photoflash lamp array having shielded switching circuit
    US3980876A|1976-09-14|Protective terminal for multiple flash lamp unit
    CA1111899A|1981-11-03|Last-flash indicator switch in photoflash array
    US4282559A|1981-08-04|Photoflash unit having flashlamps using looped lead-in wires for retention
    US3742298A|1973-06-26|Arc gap circuits for flashing high voltage photoflash lamps
    US4015093A|1977-03-29|Photoflash array having electrical shorting means
    EP0081735B1|1986-12-17|Photoflash unit with circuit pattern for redundant switching of lamps
    EP0042127B1|1985-11-13|Photoflash array with selective pairing of lamps
    US4286307A|1981-08-25|Multilamp photoflash unit with circuit crossover
    US4245280A|1981-01-13|Multilamp photoflash unit construction
    US4238814A|1980-12-09|Cover for multilamp photoflash unit
    US4324543A|1982-04-13|Photoflash array with selective pairing of lamps and switching of common circuit
    US4053757A|1977-10-11|Photoflash lamp array having radiation switches and flash indicators
    US4249230A|1981-02-03|Photoflash unit utilizing circuit board having flashlamps clamped thereto
    EP0025905A1|1981-04-01|Linear multilamp photoflash unit
    US4051359A|1977-09-27|Electric multiple flash arrangement
    同族专利:
    公开号 | 公开日
    JPS5332252B2|1978-09-07|
    DE2521094B2|1977-01-13|
    GB1525721A|1978-09-20|
    JPS5126025A|1976-03-03|
    DE2521094A1|1976-01-22|
    BR7504188A|1976-07-06|
    FR2277300B1|1977-12-16|
    US3980875A|1976-09-14|
    CA1072622A|1980-02-26|
    HU172363B|1978-08-28|
    AR229978A1|1984-01-31|
    BE830912A|1976-01-02|
    IT1039510B|1979-12-10|
    FR2277300A1|1976-01-30|
    PL104433B1|1979-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3127112A|1964-03-31|Photographic flash tube and reflector |
    DE1296520B|1965-07-30|1969-05-29|Agfa Gevaert Ag|Multiple flash device|
    NL154332B|1966-06-04|1977-08-15|Philips Nv|SERIES FLASH LUMINAIRES WITH FLASH LAMPS THAT CAN BE LIGHTED BACKGROUND.|
    GB1209158A|1967-12-05|1970-10-21|Howard Electronic Ind Ltd|Device for testing experimental circuits|
    NL6804718A|1968-04-04|1969-10-07|
    US3598985A|1968-12-16|1971-08-10|Gen Electric|Construction of disposable photoflash lamp array|
    US3608451A|1969-09-18|1971-09-28|Lester S Kelem|Structure for exposing photographic film with flash illumination|
    DE2001798A1|1970-01-16|1971-07-22|Agfa Gevaert Ag|Flash device|USRE30274E|1974-09-27|1980-05-13|General Electric Company|Method for making a circuit board and article made thereby|
    CA1073878A|1976-02-04|1980-03-18|James M. Hanson|Photoflash lamp array having conductive reflector|
    US4155110A|1977-09-01|1979-05-15|Gte Sylvania, Incorporated|Reflector-lamp module for photoflash array|
    US4268891A|1978-09-13|1981-05-19|Gte Products Corporation|Multilamp photoflash unit having grounded reflector|
    US4303963A|1979-10-15|1981-12-01|Gte Products Corporation|Multilamp photoflash unit with protection against electrostatic charges|
    DE69201705T2|1991-09-19|1995-11-09|Eastman Kodak Co|Laser diode with card edge connector.|
    KR101301954B1|2006-06-30|2013-08-30|엘지디스플레이 주식회사|backlight unit for Liquid crystal display module the same|
    US9062836B2|2011-05-16|2015-06-23|Abl Ip Holding, Llc|Cassette for receiving a planar light source|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/485,422|US3980875A|1974-07-03|1974-07-03|Multiple flash lamp unit|
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