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 s 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.

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 s 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.

A system for controlling lighting includes a control module coupled to a driver, a light source coupled to the driver, a first sensor configured to cooperate with the control module to detect occupancy and control the power delivered to the light source according to a signal provided by the first sensor, and a second sensor configured to cooperate with the control module to detect ambient light and control the power delivered according to a signal provided by the second sensor. A GUI executing on a controller device wirelessly coupled to the control module communicates with the control module to configure the operation thereof, executes on a touch-sensitive display configured to facilitate user interaction with the controller, and creates one or more control groups. The GUI is also operable to control the driver to control the state of the light source. The control module is programmable to cause the driver to control the light source according to the detection by the first sensor of occupancy, turning it on upon detecting that an area is occupied and turning it off after a configurable delay period. The control module is programmable to cause the driver to control the light source according to the detection by the second sensor of ambient light. The system is configurable to include a switch to cause the light source to be turned on without regard to occupancy detected by the first sensor or ambient light detected by the second sensor.

A system for controlling lighting includes a control module coupled to a driver, a light source coupled to the driver, a first sensor configured to cooperate with the control module to detect occupancy and control the power delivered to the light source according to a signal provided by the first sensor, and a second sensor configured to cooperate with the control module to detect ambient light and control the power delivered according to a signal provided by the second sensor. A GUI executing on a controller device wirelessly coupled to the control module communicates with the control module to configure the operation thereof, executes on a touch-sensitive display configured to facilitate user interaction with the controller, and creates one or more control groups. The GUI is also operable to control the driver to control the state of the light source. The control module is programmable to cause the driver to control the light source according to the detection by the first sensor of occupancy, turning it on upon detecting that an area is occupied and turning it off after a configurable delay period. The control module is programmable to cause the driver to control the light source according to the detection by the second sensor of ambient light. The system is configurable to include a switch to cause the light source to be turned on without regard to occupancy detected by the first sensor or ambient light detected by the second sensor.

A photographing system which can securely set a manual light amount to an appropriate light emission amount after changing the manual light amount of a strobe according to a photometry result at the time of pre-light emission. In the photographing system, when a light-emission amount automatic adjustment in a metered manual starts in a manual light-emission mode after setting a light emission amount of the light-emitting part in the main light emission within a first range by a user operation in the manual light-emission mode, a main appropriate light emission amount is calculated on a basis of a photometry result before and after the pre-light emission by a photometric circuit, then in a case where the calculated main appropriate light emission amount falls within a second range and is outside the first range, the light emission amount of the light-emitting part in the main light emission is changed to the main appropriate light emission amount, wherein the second range, wherein the second range, including the first range and wider than the first range, is possible to perform automatic light adjustment in the illumination apparatus.

A photographing system which can securely set a manual light amount to an appropriate light emission amount after changing the manual light amount of a strobe according to a photometry result at the time of pre-light emission. In the photographing system, when a light-emission amount automatic adjustment in a metered manual starts in a manual light-emission mode after setting a light emission amount of the light-emitting part in the main light emission within a first range by a user operation in the manual light-emission mode, a main appropriate light emission amount is calculated on a basis of a photometry result before and after the pre-light emission by a photometric circuit, then in a case where the calculated main appropriate light emission amount falls within a second range and is outside the first range, the light emission amount of the light-emitting part in the main light emission is changed to the main appropriate light emission amount, wherein the second range, wherein the second range, including the first range and wider than the first range, is possible to perform automatic light adjustment in the illumination apparatus.

The invention discloses a method for determining a starting time for a flash emitted from a flash tube of a flash apparatus. The flash apparatus comprises a triggering circuit, and a drive circuit. The method comprises the steps of measuring an electric current through and/or a voltage across an electrical component of the drive circuit, and determining the starting time for the flash based on the measured electric current and/or voltage.

The invention discloses a method for determining a starting time for a flash emitted from a flash tube of a flash apparatus. The flash apparatus comprises a triggering circuit, and a drive circuit. The method comprises the steps of measuring an electric current through and/or a voltage across an electrical component of the drive circuit, and determining the starting time for the flash based on the measured electric current and/or voltage.

Photographic lighting devices, systems, and methods having a plurality of electrical energy storage/discharge (EESD) elements and/or one or more light sources in a single photographic lighting device to perform one or more photographic lighting effects. EESD elements and one or more light sources can be configured to have multiple separate light emissions occur in a single image acquisition window. The multiple light emissions are separated in an image acquisition window by a time period that is about shutter speed exposure time/(N1), where N is the number of light emissions. In one such example, two light emissions are separated by a time period that is about shutter speed exposure time/(N1).

Photographic lighting devices, systems, and methods having a plurality of electrical energy storage/discharge (EESD) elements and/or one or more light sources in a single photographic lighting device to perform one or more photographic lighting effects. EESD elements and one or more light sources can be configured to have multiple separate light emissions occur in a single image acquisition window. The multiple light emissions are separated in an image acquisition window by a time period that is about shutter speed exposure time/(N1), where N is the number of light emissions. In one such example, two light emissions are separated by a time period that is about shutter speed exposure time/(N1).