233274 ⎘
Circuit arrangements or apparatus for igniting or operating discharge lamps; Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps; Static converters especially adapted therefor; Control thereof characterised by a controllable bridge in the final stage
Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#2Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#3Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#4Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#5Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#6Discharge lamp drive device, light source device, projector, and discharge lamp drive method
#7Discharge lamp lighting device
#8Discharge lamp driver, light source apparatus, projector, and discharge lamp driving method
#9Projector and control method for projector
#10Discharge lamp driver, light source, projector, and method of driving discharge lamp
#11Discharge lamp driver, light source apparatus, projector, and discharge lamp driving method
#12Discharge lamp driving device, light source device, projector, and discharge lamp driving method
#13Discharge lamp driving device, projector, and discharge lamp driving method
#14Light attenuation controlling apparatus and method for a CDM lamp
#15Projector and control method for projector
#16Discharge lamp driving device, projector, and discharge lamp driving method
#17DISCHARGE LAMP LIGHTING APPARATUS
#18Discharge lamp driving device, projector, and discharge lamp driving method
#19Discharge lamp drive device, projector, and discharge lamp drive method
#20Discharge lamp driving device, projector, and discharge lamp driving method
#21Discharge lamp driving device, projector, and discharge lamp driving method
#22Lighting device and illuminating device
#23Discharge lamp driving device, projector, and discharge lamp driving method
#24Discharge lamp lighting apparatus
#25LIGHT SOURCE DEVICE, PROJECTOR, AND PROJECTION SYSTEM
#26Discharge lamp lighting device and headlight using same
#27High-voltage discharge lamp illumination device
#28Discharge lamp driving device, projector, and discharge lamp driving method
#29Discharge lamp driving device, projector, and discharge lamp driving method
#30Circuit arrangement and method for operating at least one discharge lamp
#31Discharge lamp driving device, projector, and method for driving a discharge lamp
#32DLP projector and method for projecting at least one image onto a projection surface
#33Projector that controls discharge lamp in response to deterioration
#34Projector
#35High pressure discharge lamp lighting apparatus
#36Light module for a motor vehicle headlamp and method and electrical circuit for operating same
#37Discharge lamp lighting apparatus and projector
#38Electric lighting driver circuit
#39Light source device, projector, and method of driving discharge lamp
#40Projector with alternating power levels
#41Light source device, method of driving discharge lamp, and projector
#42High intensity discharge lamp control circuit and control method
#43High intensity discharge ballast configured to accommodate wide range of input and output characteristics
#44Amalgam temperature maintaining device for dimmable fluorescent lamps
#45HID lighting system
#46Projector with a plurality of drive power modes
#47Discharge lamp driving device, projector, and method for driving a discharge lamp
#48Power factor correction method and device for discharge lamps, for example high pressure sodium lamps
#49Projector that controls discharge lamp in response to deterioration
#50Projector
#51Ballast control circuit and ballast control method for gas discharge lamp
#52Projector discharge lamp current controller with a four time slot period
#53Ignition control apparatus used in electronic ballast and method thereof
#54DISCHARGE LAMP LIGHTING DEVICE
#55ELECTRONIC OPERATING DEVICE FOR A GAS DISCHARGE LAMP
#56DISCHARGE LAMP STARTING CIRCUIT AND DISCHARGE LAMP LIGHTING DEVICE
#57DISCHARGE LAMP UNIT AND PROJECTION TYPE IMAGE DISPLAY APPARATUS USING THE SAME
#58Transition mode commutation for inverter
#59Discharge lamp lighting device, projector, and method for driving discharge lamp
#60Discharge lamp ballast apparatus
#61High pressure discharge lamp lighting apparatus and projector
#62HIGH PRESSURE DISCHARGE LAMP LIGHTING APPARATUS AND LIGHTING FIXTURE
#63High pressure discharge lamp ballast and light source apparatus
#64Mercury lamp and mercury lamp lighting apparatus
#65Hid lamp ballast with multi-phase operation based on a detected lamp illumination state
#66Discharge lamp lighting device, projector, and discharge lamp lighting device control method
#67High pressure discharge lamp light source device
#68HIGH PRESSURE DISCHARGE LAMP BALLAST WITH ADAPTIVE FILAMENT HEATING CONTROL BASED ON LAMP AGE
#69Discharge tube power supply apparatus and semiconductor integrated circuit
#70Discharge lamp ballast having an auto-transformer for high voltage detection
#71Discharge lamp lighting device, projector, and control method of discharge lamp lighting device
#72Electronic ballast for restarting high-pressure discharge lamps in various states of operation
#73Driving method for discharge lamp, driving device for discharge lamp, light source device, and image display apparatus
#74Lamp ballast and an illumination apparatus
#75Electronic ballast with controlled filament preheating using half-wave lamp current detection
#76Method And Circuitry for Improving the Magnitude and Shape of the Output Current of Switching Power Converters
#77HIGH-VOLTAGE DISCHARGE LAMP LIGHTING APPARATUS
#78Discharge lamp lighting device, lighting fixture, and lighting system
#79High intensity discharge strobe light
#80DRIVE CIRCUIT FOR DRIVING A GAS DISCHARGE LAMP, AND METHOD OF CALIBRATING A DRIVE CIRCUIT
#81Projector using ballast controlled high-pressure discharge lamps
#82Discharge lamp lighting circuit
#83Fast run-up of metal halide lamp by power modulation at acoustic resonance frequency
#84Projector device employing ballast with flyback converter
#85Projection system and method for operating a projection system to compensate for overshoot sequence
#86HID ballast
#87Discharge lamp control device controlling lighting of a discharge lamp, and projector using the same
#88DISCHARGE LAMP LIGHTING CIRCUIT
#89Discharge lamp lighting circuit
#90Discharge lamp lighting apparatus and projector
#91Discharge Lamp Lighting Circuit
#92Electronic controller for high-power gas discharging lamp
#93Acoustic resonance free driving electronic ballast for high intensity discharge lamp
#94Discharge lamp lighting circuit
#95Lamp driver providing synchronization during commutation
#96Lighting and/or signalling device for a vehicle, associated with electronics with a high level of integration
#97High pressure lamp and associated operating method for resonant operation of high pressure lamps in the longitudinal mode, and an associated system
#98Discharge lamp lighting circuit
#99Automotive high intensity discharge lamp ballast circuit
#100Electronic ballast for a high-pressure discharge lamp having a current-measuring device
#101Device for operation of a discharge lamp of the short arc type
#102Circuit arrangement for operating at least one high pressure discharge lamp
#103Projector for changing driving frequency for driving light source lamp within allowable frequency range
#104Circuit arrangement for operating at least one high-pressure discharge lamp
#105Ballast for a discharge lamp
#106Lightening device for metal halide discharge lamp
#107Switch mode power supply for a gas discharge lamp