公开(公告)号：EP2332008A1

公开(公告)日：2011-06-15

申请号：EP09810315.3

申请日：2009-08-27

Applicant: Profoto AB

Inventor： NICANDER, Johan

IPC: G03B15/05 ,  H05B41/32

CPC classification number: G03B15/05 ,  G03B2215/05 ,  H05B41/32

Abstract: The present Invention relates to a method and a flash unit for increasing the stability in an electron flash tube within its dynamic range. The present invention discloses that a flash discharge (F) is preceded by a pre-discharge (G) which is made with an amount of energy which preheats the gas in the electron flash tube but which does not emii any significant light, whereby the harmful effects of colour temperature shift, colour temperature variations, light quantity variations and aborted flash discharges are reduced substantially at low light quantities.

公开(公告)号：EP3219175A4

公开(公告)日：2018-06-13

申请号：EP15858723

申请日：2015-10-26

Applicant: PROFOTO AB

Inventor： FALK ANTON ,  SUNDKVIST MICHAEL

IPC: H05B41/38 ,  G03B7/17 ,  G03B15/03 ,  G03B15/05 ,  H05B41/30

CPC classification number: H05B41/30 ,  G03B7/17 ,  G03B15/05 ,  H05B41/38

Abstract: The present disclosure relates to a flash generator for providing power supply to a flash tube so that the flash tube rapidly provides a light output adapted to FP-sync, Flat Peak. The flash generator comprises a capacitor bank, an output and a switch configured to switch a current flow from the capacitor bank via the output to provide a variable power via the output. The flash generator further comprises a controller for controlling the switch, whereby by controlling the on time of the switch, the generator is operative to provide, during a time period of 100 to 2000 μs during a peak time period within the time period, an average power at least 4 times higher than the average power provided during the other time period within the time period, whereby the flash tube during the peak time period becomes fully ignited.

公开(公告)号：EP2957151A4

公开(公告)日：2016-10-12

申请号：EP14751753

申请日：2014-02-11

Applicant: PROFOTO AB

Inventor： OTTERBERG ANDERS

IPC: H05B41/32

CPC classification number: H05B41/32 ,  H05B41/36

公开(公告)号：EP3047334A1

公开(公告)日：2016-07-27

申请号：EP14844738.6

申请日：2014-09-16

Applicant: Profoto AB

Inventor： FALK, Anton

IPC: G03B15/05 ,  G03B15/03

CPC classification number: H04N5/2354 ,  G03B15/05 ,  G03B2206/00 ,  G03B2215/0557 ,  H04M1/7253 ,  H04N5/067 ,  H04N5/2351

Abstract: The present invention generally relates to the field of communication between electronic devices used for photography. In particular, the invention relates to a method, transmission unit, system and computer program for wireless communication between a camera and at least one remote flash device, such as photoflash units and related equipment. More in particular, the invention provides a way of controlling a plurality of flash devices from an intermediate radio transmission unit mountable on the camera, and utilized a delay a sequence flash control sequence so as to synchronize the function of the camera and the remote flash devices during image acquisition. Further the invention provides a way of controlling in the photoflash units settings for the main flash, wherein the setting are the last settings determined by the camera when the intermediate radio transmission unit was in a TTL-mode.

Abstract translation: 本发明基因的反弹涉及用于摄影电子设备之间的通信的领域。 特别地，该发明涉及一种方法，发送单元，系统和计算机程序用于照相机和至少一个远程闪光装置，搜索作为光闪光单元和相关设备之间的无线通信。 更特别地，本发明提供从在中间无线发送单元在照相机上安装控制闪存设备的多个方式，和利用的延迟的序列闪光控制序列，从而摄像机的功能和远程闪光设备同步 图像采集过程。 此外，本发明提供在用于主闪光照片闪光单元设置控制的一种方式，worin设定是由照相机开采当中间无线发送部是在一个TTL模式下，负载设置确定性。

公开(公告)号：EP2893780A1

公开(公告)日：2015-07-15

申请号：EP13835555.7

申请日：2013-09-06

Applicant: Profoto AB

Inventor： FALK, Anton ,  CARLSSON, Ulf

IPC: H05B41/32 ,  G03B15/05

CPC classification number: H05B41/30 ,  G03B15/05 ,  G03B2215/05 ,  H05B41/32

Abstract: A generator for a flash device includes at least a first capacitor bank, which includes at least one capacitor of a first type and at least a second capacitor bank, which includes at least one capacitor of a second type. The first capacitor bank is connectable to a charger via a first switch and the second capacitor bank is connectable to a charger via a second switch. The generator is configured to individually control the first switch and the second switch so that the first capacitor bank and the second capacitor bank can be individually charged to the same or different voltages. Since the first capacitor bank and the second capacitor bank can be simultaneously discharged, it is possible to achieve a desired energy level and color temperature from a flash device connected to the generator.

Abstract translation: 用于闪存器件的发生器至少包括第一电容器组，其包括至少一个第一类型的电容器和至少一个第二电容器组，其包括至少一个第二类型的电容器。 第一电容器组可通过第一开关连接到充电器，并且第二电容器组可通过第二开关连接到充电器。 发电机被配置为单独地控制第一开关和第二开关，使得第一电容器组和第二电容器组可以被单独地充电到相同或不同的电压。 由于第一电容器组和第二电容器组可以同时放电，所以可以从连接到发生器的闪光器件获得期望的能级和色温。

公开(公告)号：EP3219175B1

公开(公告)日：2020-04-08

申请号：EP15858723.8

申请日：2015-10-26

Applicant: Profoto AB

Inventor： FALK, Anton ,  SUNDKVIST, Michael

IPC: H05B41/38 ,  G03B7/17 ,  G03B15/03 ,  H05B41/30 ,  G03B15/05

公开(公告)号：EP3265873A1

公开(公告)日：2018-01-10

申请号：EP16759212.0

申请日：2016-02-25

Applicant: Profoto AB

Inventor： FALK, Anton ,  CARLSSON, Ulf

IPC: G03B15/05 ,  G03B7/26 ,  H99Z99/00

CPC classification number: H04R5/04 ,  G03B7/26 ,  G03B15/02 ,  G03B15/05 ,  G03B2215/0557 ,  H04M1/6058 ,  H04M1/72527 ,  H05B41/32

Abstract: A flash generator is capable of identifying which type of flash head and flash head extension cables that is connected to the flash generator. A flash head and flash head extension cable can be identified by the flash generator. The flash generator provides a power supply to a flash head. Further the flash generator includes a first current generator for charging the capacitor. The flash generator further includes a second current generator or a voltage generator connected to an output of the flash generator and arranged to provide a current or a voltage to create a voltage UID over a component in a flash head or a flash head extension cable connected to the flash generator. Processing means are arranged to identify the flash head or the flash head extension cable by the measured voltage UID.

公开(公告)号：EP3219175A1

公开(公告)日：2017-09-20

申请号：EP15858723.8

申请日：2015-10-26

Applicant: Profoto AB

Inventor： FALK, Anton ,  SUNDKVIST, Michael

IPC: H05B41/38 ,  G03B7/17 ,  G03B15/03

Abstract: The present disclosure relates to a flash generator for providing power supply to a flash tube so that the flash tube rapidly provides a light output adapted to FP-sync, Flat Peak. The flash generator comprises a capacitor bank, an output and a switch configured to switch a current flow from the capacitor bank via the output to provide a variable power via the output. The flash generator further comprises a controller for controlling the switch, whereby by controlling the on time of the switch, the generator is operative to provide, during a time period of 100 to 2000 μs during a peak time period within the time period, an average power at least 4 times higher than the average power provided during the other time period within the time period, whereby the flash tube during the peak time period becomes fully ignited.

Abstract translation: 本发明涉及一种用于为闪光管提供电力供应的闪光发生器，从而闪光管迅速提供适合FP同步，平坦峰值的光输出。 闪光发生器包括电容器组，输出和开关，其被配置为通过输出来切换来自电容器组的电流，以经由输出提供可变功率。 闪光发生器还包括用于控制开关的控制器，由此通过控制开关的接通时间，发生器可操作以在时间段内的峰值时间段期间的100至2000μs的时间段内提供平均值 功率至少比在该时间段内在另一时间段期间提供的平均功率高4倍，由此在高峰时间段期间闪光管完全被点燃。

公开(公告)号：EP2616739B1

公开(公告)日：2015-12-09

申请号：EP11825537.1

申请日：2011-09-15

Applicant: Profoto AB

Inventor： FALK, Anton ,  DALENIUS, Bo ,  MARÉN, Göran ,  BLIXT, Pär ,  SUNDSTRÖM, Tommy ,  SVENSSON, Jonny

IPC: F21V17/10 ,  F21V14/04 ,  F21V7/00 ,  F21V5/04 ,  F21V7/06 ,  F21V13/12

CPC classification number: F21V7/0025 ,  F21V5/048 ,  F21V7/06 ,  F21V13/12 ,  F21V14/04 ,  F21V17/002 ,  F21V17/10

公开(公告)号：EP2732333A1

公开(公告)日：2014-05-21

申请号：EP12811908.8

申请日：2012-05-03

Applicant: Profoto AB

Inventor： FALK, Anton ,  CARLSSON, Ulf

IPC: G03B15/05 ,  H05B41/32

CPC classification number: H01J11/28 ,  G03B15/05 ,  G03B2215/0575 ,  G03B2215/0578 ,  H01J61/547 ,  H01J61/90 ,  H05B41/32

Abstract: The present invention relates to the field of flash tubes for photographic use, in particular to a flash tube comprising a trigger element for triggering a flash in the flash tube. Accordingly, a flash tube is provided. The flash tube comprises a glass envelope enclosing a gas for use in a flash tube; a first electrode inside the glass envelope; a second electrode inside the glass envelope; and an electrically conductive trigger element being configured to receive a high voltage pulse for at least partly ionizing the gas inside the glass envelope in order to trigg a flash in said flash tube, wherein said electrically conductive trigger element extends along the glass envelope from a first point on the glass envelope adjacent to the first electrode to a second point on the glass envelope adjacent to the second electrode such that a single unified spark stream which bridges the first and second electrodes inside the glass envelope is formed in the at least partly ionized gas adjacent to said electrically conductive trigger element when said electrically conductive trigger element receives the high voltage pulse.