High intensity discharge strobe lamp assembly and method for producing attenuated-EMI strobe illumination
AssigneeLuminescent Systems, Inc.
InventorJohn Eddie Powell
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AssigneeLuminescent Systems, Inc.
InventorJohn Eddie Powell
Estimating the term…
A high intensity discharge (HID) strobe lamp assembly including an HID lamp and circuitry arranged to maintain a current flow to the arc gap of the lamp throughout the powered operation of the lamp during strobing emissions as well as non-strobing operation. The lamp assembly thereby avoids problems incident to turn-on of the lamp for strobing emissions in prior lamps, in which long delay times between successive strobe emissions are necessary or high turn-on voltages are needed to flash the lamp. The lamp assembly of the invention avoids the requirement of long relaxation periods between successive strobe events and the need for high voltage conditions for strobing of the lamp, so that the lamp is able to operate in an efficient manner without generating EMI in the MegaHertz-GigaHertz range.
A high intensity discharge strobe lamp assembly, comprising a high intensity discharge lamp having an arc gap that is energizable for strobing emission, and circuitry that is constructed and arranged to (i) deliver power to the high intensity discharge lamp from a power supply for powered operation including strobing emissions and non-strobing operation, (ii) supply current continuously to the arc gap of the high intensity discharge lamp during said powered operation so that a flux of electrons across the arc gap is maintained during said strobing emissions as well as said non-strobing operation, and (iii) generate no deleterious EMI during said powered operation.
A method of producing strobe illumination from a high intensity discharge lamp having an arc gap that is energizable for strobing emission, said method comprising (i) delivering power to the lamp for powered operation including strobing emissions and non-strobing operation, (ii) supplying current continuously to the arc gap of the high intensity discharge lamp during said powered operation so that a flux of electrons across the arc gap is maintained during said strobing emissions as well as said non-strobing operation, and (iii) generating no deleterious EMI during said powered operation.
Dependencies are inferred from the claim text.