Class / Patent application number | Description | Number of patent applications / Date published |
315117000 | Automatic control of the temperature modifier | 50 |
20090021174 | Controlling a Lamp Ballast - A method and apparatus for providing electrical current to a lamp, detecting a power supply voltage outage, detecting a return of the power supply voltage, determining how long the power supply voltage outage lasted, and preheating the lamp responsive to determining that the power supply voltage outage lasted greater than a threshold amount of time. | 01-22-2009 |
20090072747 | Super Cooler for a Heat Producting Device - A super cooler device including a thermo electric cooler on a digital micro mirror device. | 03-19-2009 |
20090102386 | Control System for Liquid Motion Lamp - A control system for a liquid motion lamp maintains the proper temperature of liquids within the lamp to provide desired motion within the lamp, and reduces sensitivity to ambient temperature. The lamp preferably includes two heating elements, a first element for initial heating, such as a heat blanket, resistive glass coating, or a submerged ring, and a second heating element generally providing both heat and lighting. A sensor measures the temperature of the liquid inside the lamp and the control system controls the heat sources to maintain the temperature within operating limits. | 04-23-2009 |
20090153061 | Cooling apparatus of discharge lamp - Disclosed is a cooling apparatus of a discharge lamp for applying a heat spreading plate to a high intensity discharge lamp or for applying both a heat spreading plate and a cooling fan to a high intensity discharge lamp so as to improve a durability of an embedded electronic ballast and to increase an optical output efficiency of a discharge lamp. The cooling apparatus of a discharge lamp, the discharge lamp is composed of a base holding cover having a base on which an external power source is applied; a lamp holding cover for holding and supporting a plurality of lamps and, an electronic ballast which converts the external power source into a power source for turning on the lamps the cooling apparatus comprising: a heat spreading plate for radiating a heat in the discharge lamp; and a heat emitting cover interposed between the base holding cover and the lamp holding cover in which a plurality of heat radiating openings are formed so as to emit the radiated heat by the heat spreading plate into the outside, wherein the heat spreading plate comprises a plurality of cooling pins, and the heat spreading plate is attached into a plurality of transistors embedded into the electronic ballast. | 06-18-2009 |
20090160344 | LIGHTING EMITTING DIODE LAMP - A lighting emitting diode (LED) lamp ( | 06-25-2009 |
20090243492 | Ultraviolet Output Stabilization by Fluorescent Bulb Temperature Monitoring - A controller measures a temperature at which an ultraviolet (UV) fluorescent lamp is operating and, in response, controls heat transfer between a heat-generating portion of the fluorescent lamp power supply circuitry, such as the ballast, and the interior of the curing chamber to maintain the fluorescent lamps operating at a stable temperature. | 10-01-2009 |
20090267519 | LED lighting array assembly - A lighting array assembly has a plurality of support members facing different directions and on which emitters are mounted. Each support member has an emitter circuit thereon in operative association with at least one emitter and has a lighting center point. The emitters on each support member are positioned together around the lighting center point. The number of emitters mounted on each of the outer surfaces is determined by the light specified in each direction to meet the desired lighting distribution configuration in each direction. A method of configuring an emitter lighting array assembly includes selecting the desired lighting distribution configuration to achieve a desired lighting distribution. | 10-29-2009 |
20100164383 | METHOD OF DRIVING A DISCHARGE LAMP, DRIVING ARRANGEMENT, AN PROJECTOR SYSTEM - The invention describes a method of driving a discharge lamp ( | 07-01-2010 |
20100164384 | ILLUMINATION SYSTEM - An illumination system includes an LED lamp, a timer, a controlling circuit, a driving circuit and a power source electrically connected together. The timer produces different signals to the controlling circuit at different periods, thereby driving the LED lamp to lighten with different brightness. A light or movement sensor is further electrically connected to the LED lamp to work together with the timer. The sensor cooperating with the timer, detects light or movement of an object to drive the LED lamp to lighten for a while with a corresponding brightness. | 07-01-2010 |
20100194283 | OPTICAL MEASURING APPARATUS - An optical measuring apparatus including: a measuring apparatus body, a lighting unit, a lighting controller. The lighting unit is demountably mounted on the measuring apparatus and has an LED as a light source. The lighting controller is configured to control the lighting unit according to a light intensity command value. The lighting unit includes a storage unit in which a calibration value is stored. The calibration value generates a light intensity corresponding to the light intensity command value. The lighting controller is configured to read calibration values corresponding to the light intensity command value out from the storage unit of the lighting unit upon receipt of the light intensity command value, and controls the LED on the basis of the calibration value. | 08-05-2010 |
20100237782 | SELF-DUSTING LAMP DEVICE - A self-dusting lamp device includes a housing, a heat-dissipating module, a lighting element and a controlling unit. The housing has an air inlet portion and an air outlet portion on the outer periphery thereof. The heat-dissipating module has a heat-dissipating fan mounted in the housing. The lighting element is coupled to the heat-dissipating module for illumination. The controlling unit has a driving circuit electrically connected to the heat-dissipating fan and a direction controlling circuit electrically connected to the driving circuit. The direction controlling circuit controls the heat-dissipating fan to rotate in a normal direction for dissipating heat or to rotate in a dusting direction for dusting down the housing through the driving circuit. | 09-23-2010 |
20100244701 | TEMPERATURE BASED WHITE POINT CONTROL IN BACKLIGHTS - Systems, methods, and devices are provided for maintaining a target white point on a light emitting diode based backlight. In one embodiment, the backlight may include two or more strings of light emitting diodes, each driven at a respective driving strength. Each string may include light emitting diodes from a different color bin, and the respective driving strengths may be adjusted, for example, through pulse width modulation or amplitude modulation, to maintain the target white point. In certain embodiments, the driving strengths may be adjusted to compensate for shifts in the white point that may occur due to temperature or aging. A controller may adjust the driving strengths based on feedback from a temperature sensor, from an optical sensor, from a user input, or from calibration data included within the backlight or system. | 09-30-2010 |
20100315004 | Lamp - A lamp includes a lighting module having a lighting element and a control circuit electrically connected to the lighting element. The lamp further includes a control unit having a temperature sensor and a processor electrically connected to the temperature sensor and the control circuit. The temperature sensor senses a temperature of the lighting element and generates a temperature sensing result. The processor controls brightness of the lighting element based on the temperature sensing result of the temperature sensor. Since the brightness of the lighting element can be controlled by the processor through the control circuit using the temperature sensing result, overheating of the lighting element during operation can be avoided. The service life of the lighting element is, thus, prolonged. | 12-16-2010 |
20110012512 | SOLID STATE LIGHT FIXTURE WITH ENHANCED THERMAL COOLING AND COLOR MIXING - Various system embodiments comprise a substrate of high thermal conductivity, a solid state light emitting device, an electric circuit, and an electric dielectric. The device has a die and a connection point to the die with a low thermal resistance. The connection point is in contact with the substrate. The electric circuit is electrically connected to the light emitting device, and separated from the substrate by the electrical dielectric. Various system embodiments comprise at least four color sources; and a controller configured to calculate a solution to form a target color using the color sources when the target is outside of a gamut formed by the color sources. The controller is configured to find an equivalent target color with reduced saturation. | 01-20-2011 |
20110012513 | Device for Centerpoint Wavelength Adjustment of Emitted Optical Radiation - Device for centerpoint wavelength adjustment of emitted radiation of an LED unit having at least one interference filter arranged downstream in the optical axis of the LED unit. The LED unit and the interference filter are connected to at least one temperature regulating unit, and the temperature regulating unit is connected to at least one temperature acquisition unit. The temperature acquisition unit acquires the temperature of the LED unit as well as a temperature of the interference filter. | 01-20-2011 |
20110037390 | Multi-chip package LED lighting device - A lighting device for providing mixtures of color temperature and intensity of light. The device comprises a case that contains: a multi-chip of light emitting diode (LED) to output mixtures of color temperature and intensity of light, having a plurality of blocks of LEDs each having a predetermined color temperature, the multi-chip LED being mounted on a printed circuit board (PCB); a cooling system attached on the back of the metal PCB, the cooling system using a fluid coolant for radiating heat generated by the multi-chip LED; and a control system electrically connected with the PCB of each block and the cooling system, the control system is adapted to supply power to the multi-chip LED, select the blocks of LEDs to be adjusted, adjust the color temperature and intensity of light of the selected block of LEDs to obtain mixtures of color temperatures and intensity of light. | 02-17-2011 |
20110050104 | Thermally Efficient Liquid Motion Lamp - A thermally efficient liquid motion lamp maintains the proper temperature of liquids within the lamp to provide desired motion while using a minimal amount of energy. The lamp includes a submerged heater and a second heater in the base of the lamp, and an efficient non-incandescent light source for illuminating liquids in the lamp. A sensor measures the temperature of the liquids inside the lamp and the control system controls the heaters to first heat the lamp to operating temperature using the submerged heater and to maintain the temperature within operating limits at the base of the lamp using the second heater. The non-incandescent light source is preferably an LED and may be multi-color or an Ultra Violet (UV) LED cooperating with UV dyes in the liquids, but may be any highly efficient light source. The color and intensity of the LED may be controlled to follow music. | 03-03-2011 |
20110080098 | Sound Adaptive Cooling System for a Stage Light - A sound adapting luminaire produces an amount of cooling output that depends on the ambient sound. When the ambient sound is high, the lamp is cooled more aggressively, since more fan noise is acceptable. | 04-07-2011 |
20110121737 | Electronically Controlled Stage Lighting System - A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output. | 05-26-2011 |
20110234103 | Operating device and method for operating at least one Hg low pressure discharge lamp - An operating device for operating at least one Hg low-pressure discharge lamp which has a first and a second electrode coil may include a unit for providing a variable that is correlated with the Hg vapor pressure in the at least one Hg low-pressure discharge lamp comprises at least one unit for capturing emission spectra of at least specifiable spectral ranges, wherein the unit for capturing emission spectra may include at least one light receiving unit which is arranged in the beam path of the at least one Hg low-pressure discharge lamp. | 09-29-2011 |
20110241548 | ILLUMINATION SYSTEM ADAPTABLE TO A COOLING APPLIANCE - The present invention is directed to an illumination system adaptable to a cooling appliance. The illumination system includes a lighting module, a mode switch and a controller. Specifically, the lighting module includes at least one lighting device; the mode switch is used to determine a power mode for the lighting module; and the controller provides corresponding power to the lighting device according to the power mode. In one embodiment, the illumination system further includes a heating module having a heater for providing heat to the controller. In another embodiment, the lighting device is disposed near the controller. | 10-06-2011 |
20110241549 | LIGHT GENERATOR SYSTEMS AND METHODS - A light generating system comprising: a plurality of solid state emitters (SSEs) and a stability control system for controlling the spectral stability of the SSEs. In a particular case, the stability control system may comprise: a power regulator to regulate power supplied to a sub-set of the plurality of SSEs; a constant current circuit connected to the power regulator to provide a constant current to the sub-set of SSEs; a current regulation set point connected to the constant current circuit; and a controller configured to set the regulation set point based on metrology relating to the state of the SSEs. | 10-06-2011 |
20110260623 | LASER LIGHT SOURCE DEVICE - The present invention includes a laser element, a laser-element temperature measuring unit that measures a temperature of a laser element, a harmonic generation element that converts the wavelength of a laser light output by the laser element, a harmonic-generation-element temperature measuring unit that measures a temperature of the harmonic generation element, a harmonic-generation-element temperature adjusting unit that adjusts the temperature of the harmonic generation element, a storage unit that stores therein a relationship between the temperature of the laser element and a target temperature of the harmonic generation element at which a power of the laser light output by the harmonic generation element reaches a maximum, and a controlling unit that controls the harmonic-generation-element temperature adjusting unit so that the temperature of the harmonic generation element is adjusted to the target temperature obtained from the temperature of the measured laser element in accordance with the relationship. | 10-27-2011 |
20120062120 | THERMAL FOLDBACK CIRCUIT WITH DIMMER MONITOR - A thermal foldback circuit protects a lamp circuit component from overheating by limiting power to the lamp in response to an over-temperature condition. The amount of limiting is adjusted based at least in part on an input from an external power-reduction source, such as a dimmer. | 03-15-2012 |
20120068605 | Motor Drive Circuit and Illumination Apparatus - A motor-drive circuit includes: an output transistor configured to supply a drive current to a motor for a cooling fan; a switching-control circuit configured to control switching of the output transistor so that the motor rotates in a first direction, or rotates in a second direction opposite to the first direction; and a switching circuit configured to, when a first time has elapsed since start of rotation of the motor in the first direction, cause the switching-control circuit to start switching control so that the motor stops rotating in the first direction and thereafter rotates in the second direction, and configured to, when a second time has elapsed since start of rotation of the motor in the second direction, cause the switching-control circuit to start switching control so that the motor stops rotating in the second direction and thereafter rotates in the first direction. | 03-22-2012 |
20120081007 | TEMPERATURE CONTROLLING SYSTEM FOR LED MODULE - A temperature controlling system for a LED module includes at least one LED unit, at least one fan, at least one temperature sensor and a controlling device. The controlling device generates a driving signal for controlling the rotating speed of the fan based on a temperature detection signal transmitted from the temperature sensor, so that the fan can generate a compulsive airflow for dissipating the heat generated by the LED unit. According to the present invention, the working temperatures of the respective LED units can be kept the same, and a uniform heat-dissipating effect can be achieved. | 04-05-2012 |
20120104951 | SYSTEM AND METHOD FOR REDUCING LAMP RESTRIKE TIME - Systems and methods for reducing lamp restrike time are provided. In a lighting apparatus having a housing, a reflector, and a lamp positioned so that at least a portion of the outer jacket of the lamp is within the reflector, a circulating device is operated when the lamp is off and a temperature inside the housing is above a predefined temperature. The circulating device circulates air around the outer jacket of the lamp to cool the lamp so the restrike time is reduced without the need for a starting device with a starting voltage high enough to restart the lamp when the lamp is hot. | 05-03-2012 |
20120112637 | Amalgam-Based Fluorescent Lamp Control Circuit - A lamp is operated with main and auxiliary amalgams. In accordance with one or more embodiments, a lamp includes an auxiliary amalgam-based material that releases mercury at an elevated temperature that is above an operating temperature of the lamp, and that absorbs mercury at temperatures below the elevated temperature. During a start-up period, the auxiliary amalgam-based material is heated to cause the material to release mercury for generating light in the lamp. After the start-up period, the auxiliary amalgam-based material is allowed to cool below the elevated temperature and absorb mercury, while the lamp continues to operate for generating light using a main amalgam. | 05-10-2012 |
20120112638 | Thermal Management In A Lighting System Using Multiple, Controlled Power Dissipation Circuits - A lighting system includes a controller that is configured to provide thermal management for the lighting system by distributing excess energy in the lighting system through multiple power dissipation circuits. In at least one embodiment, the lighting system is a phase cut compatible, dimmable lighting system having one or more light sources selected from a group consisting of at least one light emitting diode and at least one compact fluorescent lamp. In at least one embodiment, the controller is configured to control the plurality of power dissipation circuits in accordance with a thermal management strategy to dissipate the excess energy in the phase cut compatible, dimmable lighting system. The particular thermal management strategy is a matter of design choice. The power distribution circuits include two of more of: a controlled switch path power dissipation circuit, a controlled link path power dissipation circuit, and a controlled flyback path power dissipation circuit. | 05-10-2012 |
20120139419 | OPTICAL TRANSMISSION MODULE AND ITS TEMPERATURE ADJUSTMENT METHOD - An optical transmission module includes a light source element for emitting a predetermined light signal transmitted through an optical fiber, the light source element having lower characteristics in a low-temperature state than those in a high-temperature state, a driver circuit for driving the light source element, and a heat transfer member connected to each of the light source element and the driver circuit to transfer heat between the light source element and the driver circuit. The optical transmission module with such configuration can stably operate in a wide temperature range while achieving power saving and cost reduction. | 06-07-2012 |
20120153830 | LED Cooling System - An LED cooling system comprising of a Peltier cooler. The Peltier cooler comprising of a top cooling plate and bottom heating plate. The top cooling plate is capable of directly contacting an LED housing such that heat generated by an LED in the LED housing can be transferred from the LED housing by said Peltier cooler; A control circuit electrically connected to said Peltier cooler to control the amount of power is supplied to said Peltier cooler; said amount of power supplied to said Peltier cooler is determined by the temperature of said LED housing. | 06-21-2012 |
20120161633 | LIGHTING APPARATUS AND LIGHTING FITTING - A lighting apparatus is provided which includes a drive section which applies electric current to a light source which is a semiconductor element emitting light with application of electric current, at least one heat sink which is mounted with the light source and transfers heat generated by the emission of the light source, and a temperature measurement section which is mounted to the heat sink and measures temperature of the heat sink which is used for estimating temperature of the light source. The light source and the drive section are mounted to the same heat sink or to the heat sinks which are thermally coupled to each other. | 06-28-2012 |
20120248985 | MEDICAL SENSOR WITH TEMPERATURE CONTROL - Embodiments of the present disclosure relate to techniques for controlling the temperature of light sources within physiological sensors in order to regulate the wavelengths emitted by the light sources. The sensors may include a temperature control element that is designed to provide heating and/or cooling to the light sources. The sensors also may include a temperature sensor designed to detect the temperature of the light sources. Based on the detected temperature, a controller can vary the amount of heating and/or cooling provided by the temperature control element to maintain the temperature of the light sources at a desired temperature or within a desired temperature range. | 10-04-2012 |
20120280620 | LIGHT EMITTING DIODE ASSEMBLY HAVING ACTIVE COOLING - A light emitting diode (LED) assembly is provided having a LED and a temperature sensor for monitoring a temperature of the LED. An active cooling circuit receives temperature input from the temperature sensor. The temperature input is indicative of the temperature of the LED. An active cooling system cools the LED. The active cooling system being controlled by the active cooling circuit to control a temperature of the LED. | 11-08-2012 |
20120299481 | IN-CIRCUIT TEMPERATURE MEASUREMENT OF LIGHT-EMITTING DIODES - Control systems and methods that directly measure the actual junction temperature of LEDs utilize internal electrical measurements, thereby dispensing with external sensors and/or wires. In various embodiments, the actual junction LED temperature is obtained based on the measured electrical properties, such as the voltage across and/or current passing through the LEDs, during operation. The measured junction temperature may be used in a closed-loop feedback configuration to control the power applied to the LED in order to avoid overheating. | 11-29-2012 |
20120306372 | METHOD FOR DEMISTING A GLASS COVER AND DISPLAY MODULE THEREOF - A method for demisting a glass cover is disclosed. The glass cover is disposed on a display panel. A heating unit is attached onto the glass cover. The method includes detecting a humidity value between the glass cover and the display panel by a humidity sensor and determining whether to start the heating unit to heat the glass cover according to the humidity value by a control circuit board. | 12-06-2012 |
20120326610 | LIGHTING UNIT AND METHOD OF CONTROLLING - A lighting unit for illuminating a habitat is provided. The lighting unit includes a housing and a light emitter. The operating parameters of the lighting unit may be adjusted to mimic different natural conditions. | 12-27-2012 |
20130214685 | LIGHT EMITTING DIODE REPLACEMENT LAMP - Thermal management and control techniques for light emitting diode and other incandescent replacement light technologies using a current controller are disclosed. | 08-22-2013 |
20130241415 | LIGHTING SYSTEM WITH THERMAL MANAGEMENT SYSTEM - Lighting systems having unique configurations are provided. For instance, the lighting system may include a light source, a thermal management system and driver electronics, each contained within a housing structure. The light source is configured to provide illumination visible through an opening in the housing structure. The thermal management system is configured to provide an air flow, such as a unidirectional air flow, through the housing structure in order to cool the light source. The driver electronics are configured to provide power to each of the light source and the thermal management system. | 09-19-2013 |
20130334966 | LIGHT SOURCE APPARATUS - A light source apparatus includes a cooling mechanism driving portion for driving a cooling mechanism in such a manner that an element temperature of a light source element which is detected by an element temperature detecting portion reaches a target temperature, and a control portion for calculating a dew point temperature of the cooling mechanism and controlling the cooling mechanism driving portion and a light source element driving portion by using the calculated dew point temperature and the element temperature. | 12-19-2013 |
20140167615 | HEAT DISSIPATING METHOD FOR LIGHT EMITTING DIODE AND LIGHTING DEVICE USING SAME - A heat dissipating method for a light emitting diode is provided. The heat dissipating method includes following steps. Firstly, a circuit board with a light emitting diode formed on one side and a heat dissipating fan formed on the other side is provided. The heat dissipating fan is configured to dissipate heat for the light emitting diode. Secondly, a power source is provided for supplying power for the light emitting diode. Finally, a speed of the heat dissipating fan is adjusted according to an input power of the power source. A lighting device using the heat dissipating method is also provided. | 06-19-2014 |
20140217895 | TEMPERATURE CONTROLLED WINDOW OF A PLASMA PROCESSING CHAMBER COMPONENT - A temperature controlled dielectric window of an inductively coupled plasma processing chamber includes a dielectric window forming a top wall of the plasma processing chamber having at least first and second channels therein. A liquid circulating system includes a source of cold liquid circulating in a first closed loop which is not in fluid communication with the channels, a source of hot liquid circulating in a second closed loop which is in fluid communication with the channels, and first and second heat exchangers. The cold liquid passes through the first heat exchanger at a controllable flow rate and temperature of the hot liquid is adjusted by heat exchange with the cold liquid as the hot liquid passes through the first heat exchanger and then through the inlet of the first channel. The cold liquid passes through the second heat exchanger at a controllable flow rate and temperature of the hot liquid is adjusted by heat exchange with the cold liquid as the hot liquid passes through the second heat exchanger and then through the inlet of the second channel. | 08-07-2014 |
20140217896 | METHOD AND DEVICE FOR REMOTE SENSING AND CONTROL OF LED LIGHTS - A control system is disclosed for determining an actual temperature of a light emitting diode. The control system uses conductor that supply power to the light emitting diode to supply a pulse to the light emitting diode. The pulse is determined along with a reaction caused by the pulse and the information gained is used in determination of the light emitting diode die temperature which can then be used in controlling current to the light emitting diode to control the temperature of the light emitting diode. | 08-07-2014 |
20140232268 | LIGHTING DEVICE AND LIGHTING FIXTURE - The lighting device according to the present invention includes a power supply circuit, a temperature detection circuit, and a temperature control circuit. The power supply circuit supplies operation power to a light source including a solid state light emitting device. The temperature detection circuit measures a surrounding temperature of the light source and outputs the measured surrounding temperature as a detection temperature. The temperature control circuit determines whether an increase rate of the surrounding temperature exceeds a predetermined criterion value. When determining that the increase rate exceeds the criterion value, the temperature control circuit performs a process of decreasing a temperature of the light source. | 08-21-2014 |
20140232269 | Sound Adaptive Cooling System for a Stage Light - A sound adapting luminaire produces an amount of cooling output that depends on the ambient sound. When the ambient sound is high, the lamp is cooled more aggressively, since more fan noise is acceptable. | 08-21-2014 |
20140306609 | LED LIGHTING CONTROL APPARATUS AND LED LIGHTING CONTROL SYSTEM USING THE SAME - Disclosed herein are an LED lighting control apparatus and an LED lighting control system using the apparatus. The proposed system includes a wired lighting unit connected to LED lighting in a wired manner and configured to perform lighting control on LED lighting. A wireless lighting unit performs lighting control on the LED lighting via wireless communication with a wireless terminal and operates in conjunction with the wired lighting unit. A location communication unit allocates individual IDs of LED lighting and performs transmission/reception of data to/from an external terminal. A multi-sensor unit supports multiple sensors and analyzes sensor data collected from the multiple sensors. An active heat dissipation unit dissipates heat from the LED lighting based on analyzed sensor data. A processor control unit controls operations of the wired lighting unit, the wireless lighting unit, the location communication unit, the multi-sensor unit, and the active heat dissipation unit. | 10-16-2014 |
20140333203 | RED EMITTING PHOSPHOR FOR PLASMA DISPLAY PANELS AND GAS DISCHARGE LAMPS - The invention provides a lighting unit ( | 11-13-2014 |
20150035438 | OVER-TEMPERATURE PROTECTING APPARATUS AND OVER-TEMPERATURE PROTECTING METHOD THEREOF - An over-temperature protecting apparatus and an over-temperature protecting method thereof are provided. The method includes following steps: detecting the temperature of the over-temperature protecting apparatus to obtain an adjusting signal and outputting the adjusting signal to a current detection pin of the control chip; adjusting the duty-ratio of the pulse-width modulated signal by the control chip output from the gate output pin according to the adjusting signal received by the current detection pin. | 02-05-2015 |
20150123543 | METHOD AND CIRCUIT FOR LIGHTING HIGH-PRESSURE DISCHARGE LAMP - A method of lighting a high-pressure discharge lamp is configured to change a power to be supplied to the high-pressure discharge lamp in accordance with a luminance parameter of an image content. The method includes switching between a low temperature operation and a high temperature operation so as to maintain a condition that mercury encapsulated into an arc tube part of the high-pressure discharge lamp constantly partially deposits without evaporating. The low temperature operation is performed where the temperature in the arc tube part is less than or equal to the deposition temperature of the mercury, whereas the high temperature operation is performed where the temperature in the arc tube part is greater than the deposition temperature of the mercury. | 05-07-2015 |
20190150254 | SYSTEMS AND METHODS FOR EXTENDING A LIFESPAN OF AN EXCIMER LAMP | 05-16-2019 |