48results about How to "Increase irradiance" patented technology

Methods of dicing substrates by both laser scribing and plasma etching. A method includes laser ablating material layers, the ablating leading with a first irradiance and following with a second irradiance, lower than the first. Multiple passes of a beam adjusted to have different fluence level or multiple laser beams having various fluence levels may be utilized to ablate mask and IC layers to expose a substrate with the first fluence level and then clean off redeposited materials from the trench bottom with the second fluence level. A laser scribe apparatus employing a beam splitter may provide first and second beams of different fluence from a single laser.

An optical irradiation device incorporating a plurality of LEDs arranged in one or more clusters or arrays. A heat pipe is provided to conduct heat away from the LEDs allowing the LEDs to be driven to produce more radiation than would be possible without the heat pipe.

An apparatus for directing light to an eye for exciting a photosensitizer includes an addressable LED array so that the size and shape of the LED light used for aiming or therapy is selectable so as to match the size and shape of targeted tissue. The LED array has a configuration that provides increased LED density, increased current spreading with minimal light blocking and a simplified addressing connection sheme.

The invention discloses a self-cleaning photovoltaic board for a street lamp. The self-cleaning photovoltaic board comprises a lamp pole, a mounting board and a photovoltaic board. The mounting boardis obliquely mounted at the top of the lamp pole. The photovoltaic board is fixedly mounted on the upper end face of the mounting board. Motion barrels with openings formed in the lower sides are fixedly connected to the side walls of the two sides of the mounting board. The self-cleaning photovoltaic board has the advantages that heated barrels are utilized for absorbing natural solar energy, thenatural solar energy is converted into heat to be conducted into low-boiling-point evaporated liquor, the low-boiling-point evaporated liquor evaporates to be vaporized and drives two pistons to moveupwards, and driving magnets adsorb driven magnets and drive an electric conduction brush to do sweeping motion upwards; when the temperature is reduced, the low-boiling-point evaporated liquor is liquefied and accumulated in the heated barrels, the two pistons are driven to move downwards, and the driving magnets adsorb the driven magnets and drive the electric conduction brush to do sweeping motion downwards; and destaticizing is carried out on the photovoltaic board, dust is separated from the photovoltaic board under the action of external force, the surface cleanliness of the photovoltaic board is guaranteed, transparency and irradiance are improved, and the photoelectric converting efficiency is improved.

Disclosed is a geodetic target object comprising at least one reflector surface, a receive channel with a detector (18) for receiving electromagnetic radiation (ES) transmitted by a measuring unit (2''), and a transmit channel with a radiation source (13'). The associated transmission port and / or reception port is / are integrated into the reflector surface or is / are embodied so as to adjoin the reflector surface such that radiation (RS) that is modulated for transmitting data can be transmitted in the direction of the measuring unit (2'') within the cross section (5'') of the radiation (ES) generated by the measuring unit (2'').

A beam integrator system, which integrates multiple beams into fewer beams of increased intensity by using a combination of optical elements and lenses.

Disclosed is a method for enhancing upconversion luminescence of rare-earth doped particles comprising a host material, an enriched concentration of activator (emitter) and a sufficient concentration level of sensitiser, the method comprising subjecting the particles to increased irradiance. The increased irradiance is higher than presently used relatively low irradiance levels. Enhancing upconversion luminescence involves enhancing luminescence intensity, brightness and / or upconversion efficiency. Particles are preferably subjected to an irradiance power density sufficient to overcome or reverse concentration quenching. The activator preferably has an intermediate meta stable energy level which accepts resonance energy from the sensitiser excited state level. In another form, particles are designed to minimize or exclude quenchers from the upconversion system between sensitizer and activator, such as the core-shell particles wherein the core comprises the host material, sensitiser and the activator, and the shell comprises a material which prevents, retards or inhibits surface quenching.

The invention provides a solar roof ventilating device of a zero energy consumption unattended power plant. The solar roof ventilating device consists of a ventilator and a solar photovoltaic driving device. At least one group of valve plates and a motor connected with the valve plates are arranged in the ventilator; and the motor is driven by the solar photovoltaic driving device. The solar photovoltaic driving device comprises a solar photovoltaic panel, the solar photovoltaic panel is connected in series with a storage battery, and the storage battery is connected with an intelligent controller and a motor, wherein the input end of the intelligent controller is connected with a temperature sensor, and the output end of the intelligent controller is connected with the motor. According to the solar roof ventilating device disclosed by the invention, a solar photovoltaic generation technology is applied to the roof ventilator for the first time, so that a novel energy source, namely solar energy, is used for supplying electric power to all electric components of the roof ventilator, and zero manual energy consumption is realized by avoiding access to a public power grid. The solar photovoltaic driving device is integrally designed. A user only needs to replace a former manual power distribution system by the solar photovoltaic driving device, and then the solar roof ventilating device can control drive operation by using the novel energy source to the former roof ventilator; and the construction complexity is reduced.

The invention discloses a high-concentration collimating solar simulator optical system, which relates to the technical field of optical design and is used for solving the problems of small operating space for sample test in a high-concentration solar simulator optical system, inconvenience in clamping and limit on uniform distribution of light caused by the adoption of a hollowed cubic conical integrator in the system. In the system, a xenon lamp light source is positioned at the first focal point of an ellipsoidal collecting mirror; an angle of 15 degrees is formed between an AM1.5 spectral filter plate and the optical axis of the ellipsoidal collecting mirror; an optical integrator assembly is positioned at the second focal point of the ellipsoidal collecting mirror, and comprises an optical cement plate and a plurality of regularly-hexagonal element lenses; the plurality of regularly-hexagonal element lenses are regularly arranged on the optical cement plate to constitute two groups of lenses; and the two groups of lenses are arranged coaxially and oppositely. By adopting the high-concentration collimating solar simulator optical system, the irradiance uniformity on an effective irradiation surface is increased effectively.

Methods of dicing substrates by both laser scribing and plasma etching. A method includes laser ablating material layers, the ablating leading with a first irradiance and following with a second irradiance, different than the first. An asymmetrically shaped beam having an asymmetrical spatial profile along the direction of travel, multiple passes of a beam adjusted to have different irradiance levels, and multiple laser beams having various irradiance levels may be utilized to ablate at least a mask with the first irradiance and expose the substrate with the second irradiance.

What is shown is a projection device having at least one light source and an array of optical channels. Each channel includes a first refractive optical free-form surface and a second refractive optical free-form surface and projection optics. The first and second refractive optical free-form surfaces are arranged between the light source and the projection optics and cause Köhler illumination of the projection optics by an object light pattern, resulting in the image to be projected on an image surface of the projection optics, wherein images of the array of optical channels superimpose one another.

A method for photoselective vaporization of uterine tissue includes delivering laser radiation to the treatment area on the tissue, via an optical fiber for example, wherein the laser radiation has a wavelength and irradiance in the treatment area on the surface of the tissue sufficient because vaporization of a substantially greater volume of tissue than a volume of residual coagulated tissue caused by the laser radiation. The laser radiation is generated using a neodymium doped solid-state laser, including optics producing a second or higher harmonic output with greater than 60 watts average output power. The delivered laser radiation has a wavelength for example in a range of about 200 nm to about 650 nm, and has an average irradiance in the treatment area greater than about 10 kilowatts / cm2, in a spot size of at least 0.05 mm2.

The present invention relates to the field of solar energy photovoltaic power generation, in particular discloses a solar energy light gathering photovoltaic power generation system. The system comprises a gathered-light receiving device (1), a light transmission pipe (2), a photovoltaic battery, a spectroscope (3) and a black box (4). The photovoltaic battery is arranged in the black box (4). The light selectively enters the black box (4) through the gathered-light receiving device (1), the light transmission pipe (2) and the spectroscope (3) and irradiates the photovoltaic battery with corresponding forbidden band width to generate power. The photovoltaic power generation system of the invention has higher light gathering radio and can save a considerable area of the photovoltaic battery. The light selectively irradiates the photovoltaic batteries with different forbidden band widths when the light is split through the spectroscope. The usage factor of light, the power generating efficiency and power output of the photovoltaic battery are increased.

A generator of duality modulated radiation, of which the irradiance, the wave intensity, or both, are varied from ordinarily equivalent levels, either for purposes of providing energy depleted or energy enriched radiation or for purpose of encoding an information signal. Various techniques are disclosed for restoring irradiance levels to “ordinary” levels, or for amplifying irradiance without affecting wave intensity. A communication system employing duality modulated radiation is also disclosed.

The combined high efficiency light irradiation system has single wavelength LED's to replace laser, and LED's with mechanical stability and reliability higher than laser and other light source is used in cancer treating system and lighting system. Structurally, combined spheres with single lens and two concentric spheres is set between the combined sphere of LED's and the irradiated surface to obtain scattered light in the irradiated surface. When some optical integrator is set between the combined sphere of LED's and the irradiated surface, homogeneous parallel light may be obtained in the irradiated surface. The radiation intensity may be controlled by means of controlling the number of LED's in lighting.

A device and system for growing of a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. Interior surfaces are enhanced in size by projections defined by deformation in sidewalls of the photopanels. The projections communicate between the sidewalls also providing structural integrity to the photopanel and allowing for thinner sidewalls and increased light transmission therethrough. The system may employ a support rack and pivotal mount to each such photopanel to allow positioning adjacent to each other in rows. Pivoting during different lighting conditions afforded the racked photopanels provides a manner to reduce light blockage to individual photo panels from adjacent photopanels.

A laser diode chip that yields high irradiance and radiant efficiency, and that emits light having a broad wavelength width and can be used as an element in a light source for an illumination device, and its production method. The laser diode chip has at least a first clad layer, an active layer, and a second clad layer stacked in that order on a substrate, is constructed of a specified combination of constituent materials for the first clad layer, active layer, and second clad layer, and has multiple, parallel, slot-shaped concavities formed in the upper surface of the second clad layer, in each of which a liquid oxide film is baked to form a current arctation layer. Light emitting points are formed in the active layer in each of the light emitting unit areas demarcated by the current arctation layers, the maximum depth of which is 5.0 μm or less.

A lamp for an underwater camera to illuminate and photograph or film objects in the macrorange including a minimum of three LED diodes that emit white light which are arranged concentrically and at the same distance from each other around, and at a specific angle to, the optical axis of an underwater camera. An annular lamp holder may be used or the lamps may be directly integrated into the housing of the camera.

A method of producing short chain carbon compounds from effluents that are rich in lignin-model compounds. The method is characterized by controlled photocatalytic degradation of lignin model compounds so as to produce short chain carbon compounds. The present invention provides converting recalcitrant and toxic organic compounds into chemicals which are of commercial value.

The invention relates to a method and special light reflecting plate structure for improving the indoor natural lighting illuminance of a building. The method is characterized in that a light reflecting plate is arranged on the inner side of an external window of a room with sun shining, and natural light is reflected and diffused through the light reflecting plate to improve the indoor natural lighting illuminance of the building; an illumination lamp is arranged on the light reflecting plate, and light of the lamp and the natural light reflected and diffused by the light reflecting plate are supplemented in cooperation so that indoor light can be homogenized; external window light received by the light reflecting plate is refracted in cooperation with an indoor ceiling of the building, light supplementing is carried out on the interior of the room through a lamp light source and a reflector, and an all-dimensional lighting and light supplementing system is formed. The method and special light reflecting plate structure have the advantages that the natural lighting function is improved, the artificial illumination use rate and / or the use power are / is reduced, artificial illumination light supplementing is reduced, and the building illumination energy consumption is saved.

A backlight module, suitable for supplying a plane light source. The backlight module has a light guide plate, a reflection mask and a light compensator. The light source is disposed next to a side surface of the light guide plate, such that the light generated thereby is incident on the side surface of the light guide plate, transmitted through the bottom surface, and projecting from the top surface of the light guide plate. The reflection mask is disposed next to the sidewall of the light guide plate to cover the light source. The light compensator is disposed in the reflection mask. By disposing the light compensator with multiple reflection planes in the reflection mask or forming multiple reflection surfaces of the reflection mask, the brightness at the two comers of the light guide plate near the two sides of the light source can be compensated.

A method of laser spot welding a workpiece stack-up (10) that includes at least two overlapping steel workpieces (12,14), at least one of which includes a surface coating (40), is disclosed. The method includes directing a laser beam (24) at the top surface (20) of the workpiece stack-up (10) to create a molten steel weld pool (90) that penetrates into the stack-up (10). The molten steel weld pool (90) is then grown to penetrate further into the stack-up (10) by increasing an irradiance of the laser beam (24) while reducing the projected sectional area (86) of the laser beam (24) at a plane of the top surface (20) of the workpiece stack-up (10). Increasing the irradiance of the laser beam (24) may be accomplished by moving a focal point (62) of the laser beam (24) closer to the top surface (20) or by reducing an angle of incidence (82) of the laser beam (24) so as to reduce the eccentricity of the projected sectional area (86) of the laser beam (24).

A light source is provided that includes a laser operable to emit laser light at a wavelength in a range from 460 nanometers to 470 nanometers and a converter assembly arranged so as to absorb the laser light emitted by the laser and to emit photoluminescent light produced by the laser light and having a longer wavelength than the laser light. The converter assembly has a converter element with a ceramic doped with Eu3+ such that under irradiation of the laser light the converter assembly emits photoluminescent light in the red spectral range.

The invention discloses a light source system for radiometer calibration. The light source system that is used for calibration of a bolometer, a radiant heat flow meter, a total radiometer, a full-spectrum radiometer, a radiation sensor and the like under the conditions of high color temperature and high irradiance comprises a radiation light source, a radiation light source connecting piece, an inner reflection shell, an outer structural shell, a rear flange, a front flange, a radiation regulator, an inner light guide arm, an outer light guide arm, a switch baffle and a cooling pipeline. Theradiation light source emits light radiation, the light radiation emitted by the radiation light source is collected through the inner reflection wall and the collected light radiation is converged and radiated forwards; the light radiation is led out through the inner light guide arm, the space of a radiation light field is homogenized, and the irradiance and the irradiation spectrum are adjustedthrough the irradiation adjuster; and a gap is formed between the inner reflection shell and the outer reflection shell and a refrigerant is used for cooling. According to the invention, a uniform irradiation field of over 50 kW / m<2> under the high color temperature can be provided; the light source system has advantages of being high in radiation illuminance, high in irradiation field uniformity, high in energy efficiency, free of background radiation interference and the like; and the calibration limit of the radiometer can be extended and the accuracy can be improved.

The invention belongs to the technical field of condensation, and particularly relates to a point condensing device. The device comprises a light emitting device, a condensing lens and a light guide lens, wherein the condensing lens is arranged above the light emitting device; the light guide lens is arranged on the condensing lens; the condensing lens and the light emitting device are rotors, and center axes of the condensing lens and light guide device are arranged on the same line; the light guide lens comprises a light guide disc and a light guide column which is connected with the light guide disc into a whole; and light emitted from the light emitting device sequentially passes through the condensing lens and the light guide lens and is uniformly exported in point shape. The light emitting device, the condensing lens and the light guide lens are matched, so that a light emitting element with relatively small power can achieve the effects of high irradiance and high uniformity; and the device is formed by simple parts, so that cost can be greatly reduced.

The invention discloses an LED (Light Emitting Diode) lamp shade, which is used in an LED lamp. The LED lamp comprises an LED lamp body and an LED light source. The LED lamp shade is arranged on the LED lamp body. The LED lamp shade comprises a shade body. The shade body comprises an outer lens and an inner lens which are arranged at interval. A connecting part is arranged between the end part of the outer lens and the end part of the inner lens. A containing groove is formed between the outer lens and the inner lens. A fluorescent adhesive layer is arranged in the containing groove. A holding space is concavely arranged in the inner lens. The LED lamp shade disclosed by the invention has the advantages that since the containing groove is formed between the inner lens and the outer lens in a surrounding way and the fluorescent adhesive layer is arranged in the containing groove, according to an optical effect of the inner lens and the outer lens, light emitted by the LED light source can be controlled within a certain angle range, the illumination intensity of the LED light source is improved, and the color temperature difference of the light emitted by the LED light source is enabled to be uniform.