113 results about "Flashtube" patented technology

A method and apparatus for fractional treatment of skin by irradiating the skin with electromagnetic energy is disclosed. Sources of the electromagnetic energy can include radio frequency (RF) generators, lasers, and flashlamps. The apparatus includes at least one sensor configured to detect a positional parameter, a skin characteristic, a skin response, or combinations thereof. The sensor provides feedback to a controller. The controller controls the treatment parameters, including the treatment density. By sensing the positional parameter, skin characteristic and / or skin response to a treatment, the controller automatically adjusts treatment density in real-time in response to the sensed positional parameter, skin characteristic and / or skin response.

A device for irradiating tissue includes a fluorescent element for receiving pump radiation and responsively emitting radiation having different spectral characteristics than the pump radiation. A redirector receives emitted radiation promulgated in a direction away from a tissue target and redirects the radiation toward the target. The pump radiation may be supplied, for example, by a flashlamp or frequency-doubled neodymium-doped laser. Use of the device provides an inexpensive and effective alternative to conventional dye laser-based systems for various medical therapies, including treatment of vascular and pigmented lesions, tattoo and hair removal, and photodynamic therapy (PDT).

The invention provides a power supply or drive circuit for a pulsed flashlamp which utilizes a two-core component having common windings as both an inductor for arc mode drive and for breakdown triggering of the lamp. Discharge of a capacitor through the inductor and lamp is controlled by a high-speed semiconductor switch which is turned on and off by a suitable control, current flowing from the inductor through a one-way path including the lamp when the switch is off. The control maintains the ratio of the power variation through the lamp to the average power through the lamp substantially constant. The controls may also be utilized to control output pulse shape. Novel protective features are also provided for circuit components during turn on periods for the switch.

A strobe apparatus of the present invention has a xenon tube, which is a discharge tube, having a discharge light emitting portion and a light emitting portion terminal. Light is emitting from the xenon tube and is reflected in a predetermined direction by a reflection umbrella. A transparent electrode is coated on the external surface of the xenon tube from the discharge light emitting portion to the terminal. When trigger voltage is applied to the xenon tube through the transparent electrode, strobe light is emitted by the discharge light emitting portion. By using the strode apparatus, the orientation characteristic of the discharge tube can be improved without uneven light distribution and a shortage of a light amount.

The present invention provides an illuminator system comprising a dual reflector system and a linear light source. The dual reflector system comprises a primary and secondary generally cylindrical reflector, which collimate light from a linear light source in two planes. The linear light source may comprise many light emitting devices, and may emit light in a strobe or continuous fashion. The reflectors may be of many cylindrical shapes, and may include additional mirror segments to capture light otherwise not collimated. Further, the reflectors may be in various configurations of position and orientation with respect to one another, and may be adjustable in this respect. The system is more efficient than existing illuminators, is compact, all reflective (no colour), lightweight, simple and inexpensive to manufacture. The system has applications to many fields including machine vision, surveillance, spectroscopic inspection of materials, and converting linear light sources into rectangular beam spot lights.

A strobe apparatus includes a xenon tube, which is a discharge tube, having a discharge light emitting portion and a light emitting portion terminal. Light is emitted from the xenon tube and is reflected in a predetermined direction by a reflection umbrella. A transparent electrode is coated on the external surface of the xenon tube from the discharge light emitting portion to the terminal. When trigger voltage is applied to the xenon tube through the transparent electrode, strobe light is emitted by the discharge light emitting portion. By using the strobe apparatus, the orientation characteristic of the discharge tube can be improved without uneven light distribution and a shortage of a light amount.

The invention is directed to a system and method for detecting substances, such as high boiling and low vapor pressure materials, using high energy radiation imparted by a suitable radiation source, such as a strobe or laser over a short time period. The radiation source causes the materials to vaporize. A system handling system is used in conjunction with a detector to detect the presence of the materials including explosives, explosive-related compounds, chemical warfare agents, drugs, toxic industrial compounds, and derivatives thereof.

An apparatus configured to integrate with existing fire system strobe / horn plates. The apparatus may be a mass notification plate. Also disclosed are embodiments of a strobe housing configured to mix and / or reflect light emitted from one or more light emitters, such as high intensity LEDs, through a lens. The lens may be configured to produce a mass notification pattern. Further disclosed are embodiments of systems and methods that may be configured to deliver strobe control signals and / or strobe color control signals over a two-wire fire system powerline.

In one illustrative example, a vehicular flasher unit has control circuitry; memory which is accessible by the control circuitry and having a plurality of pulse width modulation (PWM) flasher scheme data sets stored therein which correspond to a plurality of flasher schemes for vehicle flasher lights of a vehicle; a flasher scheme selection input to the control circuitry; a flasher enable input to the control circuitry which enables a flasher scheme in the vehicular flasher lights; and a light illumination output from the control circuitry which controls illumination of the vehicle flasher lights. The control circuitry is operative to select a set of PWM flasher scheme data from the plurality of PWM flasher scheme data sets stored in the memory in accordance with a flasher scheme selection input signal identified at the flasher scheme selection input; monitor the flasher enable input to identify a flasher enable signal; and produce, at the light illumination output in response to identifying a flasher enable signal at the flasher enable input, a pulse width modulated signal in accordance with the selected set of PWM flashing scheme data for illuminating a flasher scheme in the vehicle flasher lights. Preferably, the set of PWM flasher scheme data is a set of PWM heartbeat scheme data corresponding to a heartbeat flashing scheme in the vehicle flasher lights. Several safety and convenience features are further provided in the vehicular flasher unit.

A system and method for producing a flash of a desired intensity and duration utilizing devices of a lower intensity, such as light emitting diodes (LED's). The on period of the LED is lengthened so that the product of the LED's intensity and the on period is approximately equal to the product of the desired intensity and duration of the flash. A parameter for determining intensity, such as operating current or voltage, can be measured and the on period can be adjusted accordingly. The device can be turned on responsive to an external trigger signal, and a timer can be utilized to turn the device on if the external trigger signal is not received within a predetermined time.

A method and apparatus for brightening and dimming a brake light of automotive vehicle for enhanced display indication of braking includes a pulse width modulation unit to be electrically connected to a brake lamp for sequentially modulating the supply energy to the lamp to generate a brightening and dimming of the lamp. A time extent of the modulation is detected so that the modulation can be stopped after a preselected time period and the light will be continually on as in a conventional braking operation After the brake is released by the operator, a second preselected time period for locking out the sequential interrupting is timed down, for avoiding repetitive flashing during stop-and-go traffic.

A headlight apparatus that adjusts the luminous energy and traveling direction of light emitted from a flasher bulb without applying a machining on an inner surface of a flasher lens. A headlight unit includes a flasher bulb that flashes at predetermined intervals, and a flasher lens. The headlight unit has a louver that partitions the flasher lens. The louver is disposed on an inner surface of the flasher lens.

A method and apparatus for brightening and dimming a brake light of automotive vehicle for enhanced display indication of braking includes a pulse width modulation unit to be electrically connected to a brake lamp for sequentially modulating the supply energy to the lamp to generate a brightening and dimming of the lamp. A time extent of the modulation is detected so that the modulation can be stopped after a preselected time period and the light will be continually on as in a conventional braking operation. After the brake is released by the operator, a second preselected time period for locking out the sequential interrupting is timed down, for avoiding repetitive flashing during stop-and-go traffic.

The invention discloses a space-time synchronization system for laser radar and camera data. The space-time synchronization system comprises an FPGA local clock correction module, an FPGA, a laser radar synchronization module, an FPGA triggering camera module which sends a picture of the camera containing the internal timestamp of the camera to an industrial personal computer; a camera picture timestamp module which is used for receiving flash lamp pulses generated during camera exposure by the FPGA and marking timestamps under an FPGA clock system for exposure moments of camera pictures; a timestamp matching module which is used for triggering the camera pictures with the camera internal timestamps sent by the camera module by the FPGA and receiving the camera pictures with the timestampsunder the FPGA clock system sent by the FPGA for matching; and a point cloud data compensation and fusion module which compensates the point cloud to the position of the exposure moment of the camera; and according to the measured external parameters of the laser radar and the camera, carries out alignment fusion on the point cloud data and the camera picture. Synchronous acquisition of the camera and the laser radar is realized.

A vehicle taillight assembly is provided that includes a housing having a light transmissive lens, a brake light located in the housing, a strobe light located in the housing and a controller activating the strobe light to strobe when the brake light is activated. The strobe light may also be activated when a turn signal light or reverse light is activated. The strobe light has a light source illuminating light onto a light pipe.

The object of the present invention is to provide an ink jet recording paper of so-called plain paper type having no coating of pigment on the recording surface which is excellent in image density and color reproducibility of the recorded image and besides has a water resistance of the printed portion. According to the present invention, there is provided an ink jet recording paper which comprises a neutral base paper comprising a wood pulp as a main starting material on which is coated a coating solution containing a fluorescent brightening agent, a water-soluble binder and a cationic polymer fixing agent and in which the coated paper has an ISO whiteness of not less than 95% and a fluorescence intensity of 7–15% measured by a method specified in JIS P-8148 using a xenon flash lamp as a light source. In the ink jet recording paper, preferably, the base paper is made using calcium carbonate as a filler and the ash content of the base paper is adjusted to 5–20% by a specific treatment, and a specific fluorescent brightening agent and a specific cationic polymer fixing agent are contained at a specific mixing ratio.

Techniques are disclosed for aligning a first optical scope with a second optical scope to achieve a line-of-sight communication link between the two optical scopes. In an example embodiment, each scope can include an optical transceiver and camera. The optical transceiver in the first optical scope can include a light array that is used to emit a bright pulse of light as a flash. The camera in the second optical scope captures this flash in a camera image. The camera image can then be processed to spatially localize the flash relative to a central region of a photodetector array in the optical transceiver of the second optical scope. A control system can then drive a positioning system for the second optical scope to adjust the second optical scope's positioning so that the second optical scope photodetector array's central region aligns with the spatially localized flash.

An ammunition cartridge for a gun is optically initiated by a mechanism wholly within the cartridge case itself. The case has as optical primer initiation means producing light fluence to ignite a primer, which ignited primer may in turn ignite into a flashtube, and which ignited flashtube may in turn ignite a bed of propellant in said cartridge. The optical primer initiation means may be an LED, a laser diode, a VCSEL, or some other light emitting device in general. The cartridge optically initiated primer package is so sized and made electrically and mechanically seamlessly physically compatible with current ammunition cartridges such that these new cartridges are completely interchangeable. If the cartridge primer initiation means is of a percussion type, the cartridge is adapted to include an in-line piezoelectric crystal so that electrical power will be generated when the cartridge assembly is struck by a firing pin during percussion type operations; the power is then used to initiate the light emitting device.

A method for drying a thin film stack having a thin film located on a substrate is disclosed. The thin film stack is conveyed past a flashlamp during which the thin film stack is irradiated with a composite light pulse from the flashlamp. The composite light pulse is composed of multiple micropulses. The time duration of the composite light pulse is shorter than a total thermal equilibration time of the thin film stack. In addition, when the thin film stack is being conveyed past the flashlamp, the thin film stack should move less than 10% of the length of the irradiating area in the conveyance direction during the delivery of the composite light pulse.

Techniques are disclosed for aligning a first optical scope with a second optical scope to achieve a line-of-sight communication link between the two optical scopes. In an example embodiment, each scope can include an optical transceiver and camera. The optical transceiver in the first optical scope can include a light array that is used to emit a bright pulse of light as a flash. The camera in the second optical scope captures this flash in a camera image. The camera image can then be processed to spatially localize the flash relative to a central region of a photodetector array in the optical transceiver of the second optical scope. A control system can then drive a positioning system for the second optical scope to adjust the second optical scope's positioning so that the second optical scope photodetector array's central region aligns with the spatially localized flash.

A stroboscopic animation system with a handheld stroboscopic light with a light source that emits stroboscopic flashes, a manually rotatable top, and images to be animated retained on the upper surface of the top, such as on an animation disk. The frequency of the stroboscopic flashes can be varied, such as by a rotatable dial, with the “on” portions remaining constant and the “off” portions being adjusted. The flashes can have a lower limit of 10 to 20 flashes per second and an upper limit of 100 to 110 flashes per second, the “on” portions of the flashing sequence can be between one-900th and one-1100th of a second, and the luminous intensity of the light source can be between 65 and 130 foot candles. An orientation switch can automatically induce an “off” condition when the light is disposed outside a predetermined angular range of orientation.

The invention discloses an ytterbium-doped tetramolybdate bismuth tungstate natrium / kalium laser crystal and a growth method thereof. The chemical formula of the laser crystal is Ybx:A5Bi1-x(WO4)y(MoO4)4-y, wherein when A is a kalium ion, a crystal structure belongs to a trigonal system and the space group is R3m; when A is a natrium ion, the crystal structure belongs to a tetragonal system and the space group is I41 / a; x is a doped atomic number fraction with a number range from 5 to 20 percent; and the number range of y is more than 0 and less than or equal to 2. The laser crystal is prepared by a molten salt method and a crystal pulling method. All chemical raw materials are strictly weighted, mixed evenly, ground and pelleted; and in a pulling furnace environment with a platinum gold crucible and sufficient nitrogen, the laser crystal is obtained through the regulation of a pulling speed, a rotating velocity and an isodiametric growth process. The crystal can be used as a gain medium crystal material for a novel femtosecond laser, particularly as a working substance for the novel femtosecond laser. The crystal can use a flash lamp and LD pumping directly.

Described is a device for driving a dermatological laser. The system includes a first diode, an inductor, a switch, and a photodetector. A first end of the inductor is coupled to an end of the first diode, and a second end of the inductor is coupled to a flashlamp. An electrical control of the switch is coupled to a control system, a first end of the switch is coupled to a power source, and a second end of the switch is coupled to the first end of the inductor and the end of the first diode. The photodetector is adapted to measure at least one of output energy or output power of a laser medium pumped by the flashlamp. The photodetector is in communication with the control system for modulating a flashlamp that drives current to maintain a predetermined value of the measured output energy or output power.

A base unit for a miniature light bulb used in Christmas lighting, having a built-in microchip shunt. If the miniature light bulb is a flasher bulb, any series connected light string can be made to have a plurality of twinkling bulbs without the light string going out when one of these bulbs go out as is the case now when a single flasher bulb is inserted in a series connected light string. The microchip shunt can be back-to-back Zener diodes, a single Zener diode, a silicon triggered switch (STS), a varistor or a transient voltage suppressor (TVS) device.

An ammunition cartridge for a gun is optically initiated by a mechanism wholly within the cartridge case itself. The case has as optical primer initiation means producing light fluence to ignite a primer, which ignited primer may in turn ignite into a flashtube, and which ignited flashtube may in turn ignite a bed of propellant in said cartridge. The optical primer initiation means may be an LED, a laser diode, a VCSEL, or some other light emitting device in general. The cartridge optically initiated primer package is so sized and made electrically and mechanically seamlessly physically compatible with current ammunition cartridges such that these new cartridges are completely interchangeable. If the cartridge primer initiation means is of a percussion type, the cartridge is adapted to include an in-line piezoelectric crystal so that electrical power will be generated when the cartridge assembly is struck by a firing pin during percussion type operations; the power is then used to initiate the light emitting device.

The present invention provides an illuminator system comprising a dual reflector system and a linear light source. The dual reflector system comprises a primary and secondary generally cylindrical reflector, which collimate light from a linear light source in two planes. The linear light source may comprise many light emitting devices, and may emit light in a strobe or continuous fashion. The reflectors may be of many cylindrical shapes, and may include additional mirror segments to capture light otherwise not collimated. Further, the reflectors may be in various configurations of position and orientation with respect to one another, and may be adjustable in this respect. The system is more efficient than existing illuminators, is compact, all reflective (no color), lightweight, simple and inexpensive to manufacture. The system has applications to many fields including machine vision, surveillance, spectroscopic inspection of materials, and converting linear light sources into rectangular beam spot lights.

An extension photoflash light and a camera system using the same are provided in the present invention. The extension photoflash light is for assisting a mobile device with camera function. The extension photoflash light includes a HID, a mounting mechanism, a touch simulation device and a control circuit. The mounting mechanism is for mounting the extension photoflash light on the mobile device. The touch simulation device is disposed on the mounting mechanism. The control circuit is coupled to the HID and the touch simulation device. When the mounting device of the extension photoflash light contacts the surface of the flat panel display of the mobile device, the mobile device acquire the position information of the extension photoflash light according to the touch simulation device.