A lighting device that can prevent the progress of minute cracks generated in a flexible substrate or the occurrence of minute cracks themselves, and the flexible substrate. A flexible substrate, that electrically connect a light emitting portion movable relative to a main body portion of the lighting device, has a soldering portion that is soldered to the light emitting portion at one end, a connection portion that is connected to the light emission control portion at another end, a communication portion that connects the soldering portion and the connection portion, and two xenon wires and two trigger wires that are arranged in the communication portion in a longitudinal direction. In the communication portion, of the four wires, the two xenon wires are arranged between the two trigger wires.

A lighting device that can prevent the progress of minute cracks generated in a flexible substrate or the occurrence of minute cracks themselves, and the flexible substrate. A flexible substrate, that electrically connect a light emitting portion movable relative to a main body portion of the lighting device, has a soldering portion that is soldered to the light emitting portion at one end, a connection portion that is connected to the light emission control portion at another end, a communication portion that connects the soldering portion and the connection portion, and two xenon wires and two trigger wires that are arranged in the communication portion in a longitudinal direction. In the communication portion, of the four wires, the two xenon wires are arranged between the two trigger wires.

A lighting relay panel may include lower-cost features or components related to improved safety and reliability. In some cases, the relay panel includes a power supply capable of protecting the panel from high-voltage and high-current transients. A microcontroller may determine a power interruption based on a zero-cross signal received from the power supply, and may also configure latching relays during the interruption. In some implementations, the relay panel includes a relay sense circuit that is capable of receiving actuation signals from multiple relays connected to different phases of a power signal, and the microcontroller may synchronize or repeat the actuations based on a signal from the relay sense circuit. The microcontroller may generate relay addresses based on the relay positions within the relay panel. In some cases, the relay panel may include isolation circuits that are capable of providing an isolated control signal having an improved voltage range.

A lighting relay panel may include lower-cost features or components related to improved safety and reliability. In some cases, the relay panel includes a power supply capable of protecting the panel from high-voltage and high-current transients. A microcontroller may determine a power interruption based on a zero-cross signal received from the power supply, and may also configure latching relays during the interruption. In some implementations, the relay panel includes a relay sense circuit that is capable of receiving actuation signals from multiple relays connected to different phases of a power signal, and the microcontroller may synchronize or repeat the actuations based on a signal from the relay sense circuit. The microcontroller may generate relay addresses based on the relay positions within the relay panel. In some cases, the relay panel may include isolation circuits that are capable of providing an isolated control signal having an improved voltage range.

A light-based sterilization source directs an antimicrobial light at a touched or contacted surface for eliminating harmful viral or bacterial contaminants. The antimicrobial light is outside the range of harmful UV light while delivering an effective decontaminating light source for eradication of pathogenic microorganisms.

An acrylic or other transparent medium conducts the antimicrobial light from a source to an irradiated target surface for continual decontamination, and may define a backlighting arrangement.

A light-based sterilization source directs an antimicrobial light at a touched or contacted surface for eliminating harmful viral or bacterial contaminants. The antimicrobial light is outside the range of harmful UV light while delivering an effective decontaminating light source for eradication of pathogenic microorganisms.

An acrylic or other transparent medium conducts the antimicrobial light from a source to an irradiated target surface for continual decontamination, and may define a backlighting arrangement.

A laser interlock system and allows laser radiation to be generated when an inspector and a subject correctly wear safety glasses and during use of a photo-acoustic imaging apparatus, thereby protecting the eyes of the inspector and the subject and preventing unnecessary power consumption. The laser interlock system includes a sensing unit to sense whether or not contact between a user and safety glasses occurs, a light source unit to generate a laser, and a control unit that determines, based on an output value from the sensing unit, whether or not the user is wearing the safety glasses normally, and generates an interlock signal to turn on or off the light source unit for selective laser generation according to the determination.

A mains-powered module and a driving method are provided, in which the voltage and/or frequency of received mains power is detected. A disabling circuit is used to disable a driver circuit if the mains power profile characteristics do not match those for which the module has been designed.

A mains-powered module and a driving method are provided, in which the voltage and/or frequency of received mains power is detected. A disabling circuit is used to disable a driver circuit if the mains power profile characteristics do not match those for which the module has been designed.

LED light source, comprising a series connection of at least two LED strings, wherein each of the at least two LED strings corresponds to a single LED or comprises at least two LEDs, wherein at least one ohmic resistive element is connected in series with a first LED string of the at least two LED strings, and at least one switching element is connected in parallel to the series connection of the at least one ohmic resistive element and the first LED string, wherein the at least one switching element is configured to bypass in its conductive state the series connection of the at least one ohmic resistive element and the first LED string.