Described is dynamic control of the temperature of the envelope of an HID lamp in order to stabilize the output color temperature of the lamp. As the lamp power is changed, or environmental factors alter the lamp envelope temperature, the system senses these changes and adjusts the lamp cooling systems so as to move the lamp envelope temperature back to the desired point.

Described is dynamic control of the temperature of the envelope of an HID lamp in order to stabilize the output color temperature of the lamp. As the lamp power is changed, or environmental factors alter the lamp envelope temperature, the system senses these changes and adjusts the lamp cooling systems so as to move the lamp envelope temperature back to the desired point.

A gas discharge lamp includes at least two electrodes arranged in a manner spaced apart with a spacing in a discharge vessel filled with gas. A method of operating a ballast includes applying electrical energy to the electrodes. The ballast provides an electrical electrode current including a ripple current being dependent on an operating frequency of converter. Operating frequency is dependent on a charging time period and a discharging time period for an electrical energy store of the converter. The operating frequency is chosen such that the ripple current in the region of an arc discharge brings about a resonant excitation of the gas, and providing a pause time period between the discharging time periods and the respectively succeeding charging time period, the time duration of which pause time period is chosen such that a sum formed from the time periods attains the period duration corresponding to the operating frequency.

A gas discharge lamp includes at least two electrodes arranged in a manner spaced apart with a spacing in a discharge vessel filled with gas. A method of operating a ballast includes applying electrical energy to the electrodes. The ballast provides an electrical electrode current including a ripple current being dependent on an operating frequency of converter. Operating frequency is dependent on a charging time period and a discharging time period for an electrical energy store of the converter. The operating frequency is chosen such that the ripple current in the region of an arc discharge brings about a resonant excitation of the gas, and providing a pause time period between the discharging time periods and the respectively succeeding charging time period, the time duration of which pause time period is chosen such that a sum formed from the time periods attains the period duration corresponding to the operating frequency.

A lamp is provided. The lamp includes a transparent envelope for emitting light, and an RFID tag coupled to a portion of the transparent envelope.

A lamp is provided. The lamp includes a transparent envelope for emitting light, and an RFID tag coupled to a portion of the transparent envelope.

Shielding radio frequency interference (RFI) using reflector optics is disclosed. A simplified non-sealed reflector is used in conjunction with a mounting system, resulting in desired amounts of visible and non-visible light using radio frequency driven luminaries and emitters without sacrificing output or coverage area. Configurations are disclosed such that achieved RF grounding is compliant with FCC regulations. Accordingly, the disclosed RFI shielding improves optical design options, increased output, and decreased manufacturing costs over traditional sealed enclosures.

Shielding radio frequency interference (RFI) using reflector optics is disclosed. A simplified non-sealed reflector is used in conjunction with a mounting system, resulting in desired amounts of visible and non-visible light using radio frequency driven luminaries and emitters without sacrificing output or coverage area. Configurations are disclosed such that achieved RF grounding is compliant with FCC regulations. Accordingly, the disclosed RFI shielding improves optical design options, increased output, and decreased manufacturing costs over traditional sealed enclosures.

A sanitization apparatus includes an excimer lamp and a power converter. The power converter comprises a wide band gap device and a planar inductor. The wide band gap device is selectively switchable between a first mode wherein the inductor is electrically charged and a second mode wherein the inductor is electrically discharged. The wide band gap may be repeatedly switched between the first and second modes to generate a nano second pulse output voltage waveform.

A sanitization apparatus includes an excimer lamp and a power converter. The power converter comprises a wide band gap device and a planar inductor. The wide band gap device is selectively switchable between a first mode wherein the inductor is electrically charged and a second mode wherein the inductor is electrically discharged. The wide band gap may be repeatedly switched between the first and second modes to generate a nano second pulse output voltage waveform.