A flash light source device includes: a flash lamp; a wiring board that is provided with a circuit configured to cause the flash lamp to emit light; a housing that is formed of a conductive material and accommodates the flash lamp and the wiring board; and an electromagnetic shield cable that includes a wire directly connected to the wiring board, an electromagnetic shield layer that covers the wire, and an insulating protective layer that covers the electromagnetic shield layer, and extends to the inside and outside of the housing through an opening formed in the housing. The electromagnetic shield layer is exposed at least at a part corresponding to the opening. The part corresponding to the opening in the electromagnetic shield layer is electrically connected to a part defining the opening in the housing.

A flash light source device includes: a flash lamp; a wiring board that is provided with a circuit configured to cause the flash lamp to emit light; a housing that is formed of a conductive material and accommodates the flash lamp and the wiring board; and an electromagnetic shield cable that includes a wire directly connected to the wiring board, an electromagnetic shield layer that covers the wire, and an insulating protective layer that covers the electromagnetic shield layer, and extends to the inside and outside of the housing through an opening formed in the housing. The electromagnetic shield layer is exposed at least at a part corresponding to the opening. The part corresponding to the opening in the electromagnetic shield layer is electrically connected to a part defining the opening in the housing.

A device, including a switch configured to couple a current source with an output terminal upon receipt of a data signal, is provided. The device also includes a first variable capacitor coupled in parallel to the current source at a common node on a source terminal of the switch, wherein the first variable capacitor comprises multiple capacitive elements coupled in parallel and configured to be activated by a programmable signal, and wherein the programmable signal is selected to increase a charge transfer rate from an output terminal coupled to a load, when the switch is turned on. A system and a serial interface including the above device are also provided.

The invention discloses a drive circuit and a method for controlling a drive circuit for a flash tube. The drive circuit comprises a capacitor and a first inductor switch group comprising a first inductor and at least one first switch connected in series with each other. The first inductor switch group is configured to be connected in series with the flash tube and the capacitor. The drive unit further comprises at least a second inductor switch group comprising a second inductor and at least one second switch connected in series with each other and configured to be connected in series with the flash tube and the capacitor, and in parallel with the first inductor switch group. The method further comprises the steps of receiving input parameters related to a desired flash characteristics, and controlling the first and second switches separately based on the received input parameters to obtain the desired flash characteristics.

The invention discloses a drive circuit and a method for controlling a drive circuit for a flash tube. The drive circuit comprises a capacitor and a first inductor switch group comprising a first inductor and at least one first switch connected in series with each other. The first inductor switch group is configured to be connected in series with the flash tube and the capacitor. The drive unit further comprises at least a second inductor switch group comprising a second inductor and at least one second switch connected in series with each other and configured to be connected in series with the flash tube and the capacitor, and in parallel with the first inductor switch group. The method further comprises the steps of receiving input parameters related to a desired flash characteristics, and controlling the first and second switches separately based on the received input parameters to obtain the desired flash characteristics.

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.

In an apparatus for thermal treatment of substrates, a gas discharge lamp runs in a simmer mode in standby operation. A constant power supply may be connected to the gas discharge lamp via a first switch. At least one charged capacitor may be connected to the gas discharge lamp via a second switch. A thermal treatment of the end side of a substrate with a duration of between 20 milliseconds and 500 milliseconds is provided in a manner governed by light absorption. This time window is advantageous for thermal treatment of coatings having a thickness of 2 to 200 micrometers, wherein the temperature of the rear side of the substrate can remain below that of the end side. The temperature on the end side can be significantly increased by the gas discharge lamp being connected to the capacitor via the second switch at the end of the time window.

In an apparatus for thermal treatment of substrates, a gas discharge lamp runs in a simmer mode in standby operation. A constant power supply may be connected to the gas discharge lamp via a first switch. At least one charged capacitor may be connected to the gas discharge lamp via a second switch. A thermal treatment of the end side of a substrate with a duration of between 20 milliseconds and 500 milliseconds is provided in a manner governed by light absorption. This time window is advantageous for thermal treatment of coatings having a thickness of 2 to 200 micrometers, wherein the temperature of the rear side of the substrate can remain below that of the end side. The temperature on the end side can be significantly increased by the gas discharge lamp being connected to the capacitor via the second switch at the end of the time window.

In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.

In an example, a method of operating an ultraviolet (UV) light source includes providing a supply power to the UV light source, and activating, using the supply power, the UV light source to emit UV light during a series of activation cycles. The method also includes, during at least one activation cycle in the series, sensing the UV light emitted by the UV light source to measure an optical parameter of the UV light. The optical parameter is related to an antimicrobial efficacy of the UV light. The method further includes adjusting, based on the measured optical parameter, an electrical parameter of the supply power to maintain a target antimicrobial efficacy of the UV light over the series of activation cycles.