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8981653 Flash driver to limit a load current of a flash and method to limit a load current of a flash driver  
A flash driver to limit a load current for a flash comprises a dc/dc converter (DCDC) having a first input (IN1) to receive an input voltage (Vin) and an output (OUT) to supply an output voltage...
8947255 Method and apparatus for generating a predetermined type of ambient lighting  
A predetermined type of ambient lighting is generated in which the influence of each of a plurality of luminaries on a predetermined type of ambient lighting is determined (203) and illumination...
8686662 Timed supercapacitor charge-up and emergency illumination  
Exit and egress lighting, emergency lighting or emergency light fixture, having internal supercapacitor power sources are recharged after a power outage using a staggered power up process. For...
8674618 Method and apparatus for curing thin films on low-temperature substrates at high speeds  
A curing apparatus for thermally processing thin films on low-temperature substrates at high speeds is disclosed. The curing apparatus includes a strobe head, a strobe control module and a...
8618740 Stroboscopic illuminator  
A photographic illumination system, comprising a first stroboscopic flash tube, for emitting an intense broadband illumination pulse comprising ultraviolet rays; a second stroboscopic flash tube,...
8610378 LED anti-collision light having a xenon anti-collision light power supply  
Methods and systems for easily integrating a light-emitting diode (LED) light assembly with an existing xenon power supply. An exemplary system includes a xenon power supply that includes an...
8604708 Voltage-controlled light diffusing module, flash lamp module and controlling method thereof based on face information  
A voltage-controlled light diffusing module, a flash lamp module and a controlling method thereof are provided. The voltage-controlled light diffusing module includes a light diffuser, a driving...
8598798 Camera flash with reconfigurable emission spectrum  
A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine...
8482663 Light-emitting diode arrangement, optical recording device and method for the pulsed operation of at least one light-emitting diode  
A light-emitting diode array is disclosed which has two light-emitting diodes which are connected in antiparallel with one another, and a power supply which is suitable for energizing the...
8410712 Method and apparatus for curing thin films on low-temperature substrates at high speeds  
A curing apparatus for thermally processing thin films on low-temperature substrates at high speeds is disclosed. The curing apparatus includes a strobe head, a strobe control module and a...
8384823 Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device  
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
8294380 Method of forming a flash controller for a camera and structure therefor  
In one embodiment, a flash controller for a camera is configured with a plurality of flash control channels that each control a value of a current through a light source. The value and timing of...
8254768 System and method for illuminating and imaging the iris of a person  
A system and method for capturing an image of one or both irises. To image an iris, a person stands or moves in a target zone. A flash element provides an incoherent flash of light through an...
8198821 Solar simulator  
To provide the solar simulator that facilitates making the flash light emitted from the lamp into the desirable irradiance waveform. In the solar simulator 1, the controller 12, according to the...
8098986 Camera with light emitting function  
For flash photography, a rise of a flash emission control pulse precedes emission timing by a predetermined period. A start of flash emission of a flash lamp precedes a start of exposure of an...
8059192 Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device  
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
8040069 Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device  
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
7999483 Circuit arrangement and method for actuating an electrical load  
A circuit arrangement (1) for driving an electrical load (13) comprises a first and a second terminal (2, 3) for feeding a first and a second control signal (S1, S2), a first output (23), to which...
7999480 Control circuit and flash system using same  
A control circuit is configured to control the charge and discharge of a flash unit. The flash unit includes an anode, a cathode, and a trigger electrode. The control circuit includes a charging...
7994729 Optical element driving circuit  
An optical element driving circuit flexibly configures energy sources to cause illumination with an optical output element, such as a flash lamp. The energy sources include an illumination...
7990074 Adaptive algorithm for camera flash LED power control vs. battery impedance, state of discharge (SOD), aging, temperature effects  
A method for driving a light-emitting semiconductor is provided. A supply voltage is converted into a secondary output voltage for supplying the light-emitting semiconductor with an output...
7991282 Method and circuit for charging of super capacitor as energy source for flash diodes  
A circuit and method for charging a super capacitor to an optimal voltage that provides a desired flash diode current value while minimizing power dissipation in circuit elements other than the...
7982407 Stroboscopic illuminator  
A photographic illumination system, comprising a first stroboscopic flash tube, for emitting an intense broadband illumination pulse comprising ultraviolet rays; a second stroboscopic flash tube,...
7915835 Imaging apparatus, strobe device, and charging-control method  
An imaging apparatus including a strobe device having a charging circuit of a separately excited oscillation type is provided. The apparatus includes a main capacitor in which charge is...
7777809 Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device  
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
7761004 Electronic apparatus, lighting apparatus and method of calculating electric quantity thereof  
A fully charged battery or an unused battery is set in a battery box of a lighting apparatus. A user turns on an illumination electric source of the apparatus and selects the battery. A maximum...
7705542 Flashlight  
A flashlight in accordance with an aspect of the invention includes an ID module for generating an ID signal indicative of a power mode of the flashlight. In an aspect, the flashlight mates with a...
7652434 Electronic flash unit and manufacturing method thereof  
The electronic flash unit disclosed comprises: a transformer (14) to vary voltages of a power supply; an accumulator (16) composed of a main capacitor (17) to charge an electric energy supplied...
7633234 Method and apparatus for maximizing the sustainable flash of a handheld portable electronic device  
A method and apparatus for maintaining a maximum sustained flash current over the whole length of a flash using a programmable current drive in a handheld portable device powered by a battery. The...
7634191 Portable communication device equipped with an electronic flash having a LED ignition device  
A portable communication device includes an image capture device, a light source unit operable to provide a flash of light and a flash ignition device. The flash ignition device includes a light...
7592752 Lighting control circuit for flash discharge tube and method of use  
A lighting control circuit for a flash discharge tube can include an IGBT drive circuit and a timer circuit provided in parallel to each other to output a drive voltage to an IGBT device. An OR...
7579783 Microprocessor-controlled insertable flashlight adapter device  
An insertable flashlight adapter device for use in an ordinary flashlight having a lamp includes a disc-like shaped housing unit. Electronic circuitry is disposed within the housing unit for...
7545104 Power supply circuit for flash discharge tube  
A voltage is applied across the positive electrode and negative electrode of a flash discharge tube (xenon flash lamp) to emit light by a charge and discharge capacitor. This voltage application...
7522831 Charging device for camera flash  
A charging device (1) for a camera flash includes a digital signal processor (10) providing a pulse width modulation signal and receiving a feedback signal, a voltage boosting circuit (20)...
7522832 Apparatus and method for strobe charging  
An apparatus and method for strobe charging is disclosed. The apparatus and method can dynamically adjust a charging current according to current power level of a battery, thereby stabilizing the...
7471049 Optical element driving circuit  
Optical element driving circuits flexibly configure energy sources to cause a flash tube to produce illumination at one of multiple output intensities. The driving circuits allow a single strobe...
7423385 System and method for controlling voltage on discharge capacitors which control light energy from flash lamps  
A system and method are described for controlling voltage on discharge capacitors which control light energy from flash lamps, wherein the method includes measuring over time an operational...
7414370 Increasing reliability of operation of light emitting diode arrays at higher operating temperatures and its use in the lamps of automobiles  
A lamp in which a LED array is coupled to a transistor such that the same amount of current flows through both. The voltage level at the control (e.g., base) terminal of the transistor is...
7375471 Charging circuit  
A charging circuit has a battery 12, switching element 14, and resistor 16 for current detection arranged on the primary side of transformer 10. Diode 18 and capacitor 20 for storing electric...
7359632 Flash apparatus, image capture apparatus having a flash apparatus, and method of controlling a flash apparatus  
A flash apparatus or an image capture apparatus includes a charging unit, configured to boost a voltage of an electric source and a control unit, configured to calculate the sum of the light...
7333004 Self-adjusting strobe  
A strobe unit responds to a selected candela output by selecting an optimal capacitor charging frequency to minimize current requirements at the selected candela output. A plurality of charging...
7221100 Gas discharge lamp power supply  
An apparatus for providing power to a gas discharge lamp comprises a storage capacitor and an ignition switch coupled through a primarily parasitic first inductor to a parallel combination of a...
7106008 Flashlight control circuit  
A flashlight control circuit is provided to control the flash according to an exposure voltage and a predetermined voltage. Either a first comparator, second comparator and logic gate or a...
7106007 Flashlight lamp circuit with automatic light adjustment  
A flashlight lamp circuit with automatic light adjustment includes a flashlight charging unit for controlling charging of a main capacitor, a flashlight activation unit activating the flashlight...
7049760 Camera flash circuit using a piezoelectric transformer to trigger firing of the camera flash tube  
A camera flash circuit employing a piezoelectric transformer in the flash trigger circuit, the piezoelectric transformer having input terminals coupled to the main flash voltage storage capacitor...
7030571 Stroboscopic illuminator  
A photographic illumination system, comprising a first stroboscopic flash tube, for emitting an intense broadband illumination pulse comprising ultraviolet rays; a second stroboscopic flash tube,...
6924605 Combination voltage detector and LED flashlight  
A combination electric field sensor and a flashlight with at least one main LED disclosed that uses a voltage multiple circuit that enables the use of a single AA or AAA battery. The voltage...
6894439 Portable power converter pack  
A portable power converter comprising input means to receive low voltage DC input, voltage converter means for converting the low voltage DC input into high DC voltage output, the voltage...
6785470 Capacitor charging device utilizing current detection to determine malfunction, and strobe and camera using same  
A strobe charging device includes a light-emitting tube; a main capacitor for accumulating energy and for supplying the energy to the light-emitting tube; a transformer circuit which includes...
6741044 Lamp lighting controlling apparatus and light emitting apparatus  
When a lamp is turned on and a wafer is placed on a light exposure surface, a controlling unit opens a shutter plate so that light is emitted on the light exposure surface and an illuminometer...