Abstract

A driver and a light fixture including an LED array and the driver. The driver including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit is controlled by the microprocessor and charges the at least one capacitor to a voltage such as at least two times a forward voltage of the LED array. The discharging circuit is controlled by the microprocessor and delivers power from the at least one capacitor to the LED array in discrete pulses.

IPC Classes  ?

• F21V 1/00 - Shades for light sources
• F21V 5/04 - Refractors for light sources of lens shape
• F21V 31/00 - Gas-tight or water-tight arrangements
• F21V 3/00 - GlobesBowlsCover glasses
• F21V 15/01 - Housings, e.g. material or assembling of housing parts
• F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
• F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
• F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
• F21V 25/10 - Safety devices structurally associated with lighting devices coming into action when lighting device is over-loaded, e.g. thermal switch
• F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
• F21V 23/02 - Arrangement of electric circuit elements in or on lighting devices the elements being transformers or impedances
• F21Y 115/10 - Light-emitting diodes [LED]
• F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels

Abstract

A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.

IPC Classes  ?

• F21V 1/00 - Shades for light sources
• F21V 5/04 - Refractors for light sources of lens shape
• F21V 31/00 - Gas-tight or water-tight arrangements
• F21V 3/00 - GlobesBowlsCover glasses
• F21V 15/01 - Housings, e.g. material or assembling of housing parts
• F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
• F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
• F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
• F21V 25/10 - Safety devices structurally associated with lighting devices coming into action when lighting device is over-loaded, e.g. thermal switch
• F21S 9/02 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
• F21Y 115/10 - Light-emitting diodes [LED]