1059 results about "Illumination Technique" patented technology

An in vivo imaging device having an illumination system that creates a virtual source within a tissue region of a subject in a non-invasive manner. The illumination system transforms a maximum amount of illumination energy from a light source into a high contrast illumination pattern. The illumination pattern is projected onto the object plane in a manner that maximizes the depth to which clear images of sub-surface features can be obtained. The high intensity portion of the illumination pattern is directed onto the object plane outside the field of view of an image capturing device that detects the image. In this configuration, scattered light from within the tissue region interacts with the object being imaged. This illumination technique provides for a high contrast image of sub-surface phenomena such as vein structure, blood flow within veins, gland structure, etc.

The present invention provides a system which integrates unique lighting technologies, switching systems, mounting systems, information delivery systems and power supply systems within a support such as vehicular wheel to provide an advanced, high quality visual display apparatus in various surfaces of rotation. A displayed image may be three dimensional. These technologies, and their many unique applications, provide for a novel and useful series of video display devices that are small, lightweight, efficient and can have the capability of producing a clear, bright, high definition image that is equivalent to that of a modern day TV or high quality computer monitor.

A coaxial narrow angle dark field imaging system is provided. The system utilizes a telecentric lens to illuminate objects with symmetric coaxial narrow angle dark field illumination. The illumination technique is particularly suited to highlight minor features or defects on planar specular objects. In particular, the coaxial light source directs light rays towards a telecentric lens which redirects the light rays towards the substantially planar specular object. The light rays are reflected back through the telecentric lens towards a camera. To the extent that the light rays are reflected from a planar specular portion of the object the light rays are blocked by a telecentric stop. Light rays reflected from a defect or feature in the planar specular object will pass through an aperture in the stop to a camera.

An illumination technique and system employing an optical waveguide to transmit light from a source, typically a light emitter which operates at high temperature, to a light head which creates a desired light dispersion pattern. The light head includes a member which emulates the light source and the emitted light is coupled from the source into the optical waveguide by a compact and efficient columnator comprising a pair of dissimilar three dimensional reflectors and a lens.

The present invention provides a system which integrates unique lighting technologies, switching systems, mounting systems, information delivery systems and power supply systems within a vehicular wheel to provide an advanced, high quality visual display apparatus. These technologies, and their many unique applications, provide for a novel and useful series of video display devices that are small, lightweight, efficient and have the capability of producing a clear, bright, high definition image that is equivalent to that of a modern day TV or high quality computer monitor.

The invention discloses an illumination device with a surface light source, which is based on LED and belongs to the semiconductor solid state lighting technology. The invention applies the light emitting diode as the light source, uses the optical reflection principle for the shaping of the emitting light from the light source to produce a uniform emitting surface and utilizes a light diffusing board to realize the uniform angular distribution. The whole structure at least comprises a LED light source module, a reflection panel and the light diffusing board; and a light guiding board is not used. The light emitting surface of a lamp utilizes the light diffusing board to realize the angular uniformity; the reflection panel is not mounted between the LED light source and the light diffusing board; part of the light or all of the light which is emitted from the LED light source module is reflected to the light diffusing board through the reflection panel; uniform illumination intensity is produced on the light diffusing board and the uniformity of the light intensity is realized. The LED surface illumination lamps with a plurality of structures are produced, which play the great energy saving advantage of the LED as much as possible and improve the stability, safety and reliability of the lamps simultaneously.

The invention provides a method for acoustically and optically characterizing an immersed object of interest by generating a serial plurality of acoustic and optical illumination pulses through a liquid. In addition to the spectral analyses/imaging of objects/environment made possible by the white-light illumination, a target material can be ablated, generating an ionized plume to spectrally identify the target's constituent atoms.

The invention relates to the technical field of lighting, in particular to a high-illumination lamp bulb with a 360-degree full fire angle. The high-illumination LED lamp bulb with the 360-degree full fire angle is realized by the following technical scheme: the lamp bulb comprises a light-transmitting lamp base, a light-transmitting lamp cover, a supporting plate, a heat-dissipation body, a first lighting module and a second lighting module, wherein the light-transmitting lamp base comprises a lower end and an upper end which are separated from each other, a lamp holder is arranged at the lower end of the lamp base, an opening is formed at the upper end of the lamp base, and a driver is arranged in the lamp base; the light-transmitting lamp cover is combined with the upper end of the lamp base and closes the opening of the lamp base so as to form a chamber defined by the lamp base and the lamp cover; the supporting plate is erected in the chamber and comprises an upper end surface facing the lamp cover and a lower end surface facing the lamp holder; the heat-dissipation body is arranged in the chamber and is supported by the light-transmitting supporting plate and comprises an upper surface facing the lamp cover and a lower surface facing the lamp holder; and the first lighting module and the second lighting module are arranged on the lower surface of the heat-dissipation body and comprise at least one second LED, and the driver is electrically connected with the second lighting module.

The invention relates to a preparation method of a bonded gold-silver alloy wire, and belongs to the technical field of bonded wire processing processes. The bonded gold-silver alloy wire comprises the following metal materials by weight: 20-30% of silver, 5-1000 ppm of palladium, 5-1000 ppm of calcium, 5-1000 ppm of beryllium, 5-1000 ppm of cerium and the balance of gold; the preparation method comprises the following steps: 1), preparing materials; 2) smelting an alloy ingot; 3) pulling and casting an alloy rod; 4) wire-drawing; 5) annealing; 6) coiling; and 7) packaging. The preparation method of the bonded gold-silver alloy wire, provided by the invention, has the advantages of reasonable and standard technical design, and simple operation, the produced bonded gold-silver alloy wire has the advantages of strong conductivity, stable chemical performance, good oxidation resistance, flowability and plasticity, higher breaking force and better elongation, and moderate cost, and requirements of semiconductor package industry and LED (Light Emitting Diode) illumination technology on the performances of the bonded gold-silver alloy wire can be completely satisfied.

A lighting fixture where the lighting fixture uses inductive lighting technology or self ballasting lighting elements with one or a plethora of efficient light elements. The lighting fixture is used where high bay or low bay lighting may be used, but incorporates multiple light sources to provide an equivalent light intensity. The multiple light sources can be inductive or multiple fluorescent, LED or other efficient light sources to provide a less expensive cost of operation and installation. The higher efficiency lights could be standard socket type fluorescent or inductive light bulbs that are easily available. The higher efficiency lights will also create less heat that will further reduce the air conditioning or cooling costs for the building. An integrated ballast box with reflector dome retainer is also shown for use with inductive or other lighting that further includes a retaining mechanism for the dome.

The invention discloses an improvement on a light source gatherer device for automatically tracing sun light, and belongs to the new field of an illumination technique of optical fiber use and solar energy utilization. The device comprises a light gathering device, an electromechanical driving device, a sensor, a control system, a lamp light source, optical fibers, a switch and a luminous back lamp. The improvement on the device is characterized in that under the attraction of an magnetic clutch and the worm and gear engagement, the light gathering device is driven to rotate in the plane direction and the vertical direction in a self-locking way; the light gathering device adopts a circular belt type screw lens to gather light, and is provided with an axial fan at the side of a light filter to blow, exhaust and radiate heat; the sensor arranged at the position for checking the sun light sends a control command to a motor and the magnetic clutch of the electromechanical driving device through the control system, and the control command is used for controlling and driving the light gathering device to complete the motion adjustment for tracing any space angle required by the sun light, and controlling the lamp light source, the light filter and a color disc to do rotation at inlet and outlet positions in the horizontal direction, so the device can automatically gather light, collect the sun light source, and convert the lamp light source in sun-shading days.

The invention discloses a multivariable intelligent control system for road lighting and a lighting control method of the control system and relates to the technical field of the road lighting. The control system and control method aim at achieving energy-saving control of street lamps. The system comprises an upper computer, a lighting controller, an illumination sensor, a fog induction device, a traffic flow monitoring device, a general control lighting switch, a general control dimming device, a plurality of electric control branch lighting switches and a plurality of electric control branch dimming devices, wherein the lighting controller outputs corresponding signals to the electric control branch lighting switches and the electric control branch dimming devices according to seven factors namely failure maintenance, a command of the upper computer, a condition in a foggy day, an illuminance condition, a condition of sunrise and sunset, time control and a condition of a traffic flow, so that the turn-on and turn-off of street lamp sets and the luminous intensity of the lighten street lamp set are controlled respectively, and the scene control of the road lighting is achieved. The multivariable intelligent control system and the lighting control method are applicable to the lighting control of urban roads.

The invention belongs to the technical field of illumination and provides an LED filament strip. LED filaments are distributed to form a long strip shape, and electric connection points at the two ends of each LED filament are connected through a wire. An LED filament lamp is manufactured through the LED filament strip and comprises a lamp holder, a lamp base and a supporting rod, the LED filament strip is arranged around the supporting rod, and an upper guide wire and a lower guide wire of the supporting rod are connected with an upper wire and a lower wire of the LED filament strip respectively. A method for manufacturing a core filament includes the steps that a core is prepared, an LED filament strip workpiece is cut, the cut LED filament strip workpiece is wound on the periphery of the core, an upper guide wire and a lower guide wire of the core are welded to wires at the upper end and the lower end of the LED filament strip workpiece respectively, and the core filament is manufactured. According to the LED filament strip, the LED filament lamp and the method for manufacturing the core filament of the LED filament lamp, procedures are simplified, welding human factors are reduced, products are good in uniformity, installation is firm and reliable, the structure is reasonable, product quality and production efficiency of the LED filament lamp are greatly improved, and great application and popularization value is achieved.

The 3D optical lens design method comprises: based on law of conservation of energy, dividing out some sub-areas as the light source energy equal to illuminant plane energy; selecting one point any of the point in one emergence line and corresponding equal-energy illuminant plane points as the initial point for target lens; iterative solving coordinate and normal vector for every discrete point to determine the lens surface. Compared with prior art, this invention is convenient and high efficient, and can save energy for wide application.

The invention belongs to the technical field of lighting, and discloses a split LED bulb lamp cover and a full-angle LED bulb lamp based on the same. The lamp cover comprises a lamp cover body and a connector positioned at the lower end and used for being assembled with a base, and is characterized in that the lamp cover comprises at least two light-transmitting cover bodies. The split LED bulb lamp breaks dimension constraints, among the inner diameter of the connector at the lower end of a lamp cover, the maximum diameter of a base and the diameter of a base plate through split type designed lamp cover, of an existing split LED bulb lamp and effectively solves the problem that the connector at the lower end of the lamp cover limits the dimension of the base plate. By adopting the lamp cover design breaking the routine, the dimension of the base plate can be larger than the maximum diameter of the base, conditions are provided for designing base plates with larger dimensions so as to improve the heat dissipation effect, and a possibility that a light source keeps away from the blocking of the base so that light ray is irradiated to the rear part is provided. By sufficiently utilizing the technical scheme, full-angle lighting of the LED bulb lamp can be easily realized.

The embodiment of the invention provides a light-emitting device, and relates to the technical field of display and illumination. The light-emitting device can increase the light-emitting area and achieve uniform and mixed light emergence. The light-emitting device comprises a back plate, a packaging structure, a light-emitting structure and a scattering layer, wherein the light-emitting structure and the scattering layer are arranged between the back plate and the packaging structure, the scattering layer is located at a light emergence side of the light-emitting structure, the light-emitting structure is separated into a plurality of light-emitting units, the scattering layer is separated into a plurality of scattering units, and the multiple light-emitting units correspond to the multiple scattering units one to one. Each light-emitting unit comprises a first light-emitting sub-unit, a second light-emitting sub-unit and a third light-emitting sub-unit and is applied to manufacturing of a display device and an illumination lamp.

The invention relates to the technical fields of burglar alarm and optical illumination, and provides a wide angle pyroelectric infrared fresnel lens on an infrared detector or an automatic infrared induction lighting optical component. The wide angle pyroelectric infrared Fresnel lens is composed of four layers, wherein a single lens is as a unit to detect an angle and distance, and each layer which is composed of a plurality of single lenses respectively detects different distance and different angles. Lenses of each layer use a different focal length design and a staggered arrangement mode, the fresnel lens refraction principle and an actual used method are used, pyroelectric infrared rays which pass through each of the single lens are focused on a same position, simultaneous detection of a stereo type detecting area which is formed by large distance, medium distance, short distance, very short distance and a wide angle is achieved, and thus blind zones in the detection area are reduced. In addition, the wide angle pyroelectric infrared Fresnel lens generates displacement of a focal position through changing a mode of an incident infrared ray angle, and thus detection distance is changed.

The invention provides an automatic focusing LED (Light Emitting Diode) searching lamp and belongs to the technical field of solid-state illumination of LED semiconductors. The automatic focusing LED searching lamp comprises a lamp box, a light source component, a spotting component, a focusing component, a focusing moving mechanism, a power transmission mechanism, a control device and a radiator, wherein the lamp box comprises a top plate, a base plate, a piece of protecting glass, a rear back plate and two lateral panels; the light source component comprises an aluminum-base copper-clad plate and a plurality of high-power LED lamp beads; the spotting component comprises a spotting lens bracket and a plurality of aspheric surface spotting lenses; the focusing component comprises a focusing lens bracket and a plurality of Fresnel lenses; the focusing moving mechanism comprises a guide rail and a slide block; the power transmission mechanism comprises a stepping motor, a coupler, a screw rod, a flange and a connecting bracket; the control device comprises a control box and is electrically connected with the stepping motor and the high-power LED lamp beads; and the radiator comprises a heat guiding plate, a heat guiding pipe and fins. The automatic focusing LED searching lamp has the advantages of high lighting effect, less energy consumption, energy conservation, environmental friendliness, green and zero pollution, good radiating effect, long service life, reliable running and low maintenance cost.

The invention discloses an optical system for detecting a vertical surface and an outline of a coin on line. The optical system comprises a glass plate for bearing the coin, an annular light source concentrically arranged above the coin, a curved surface reflector concentrically arranged below the coin and a back light source concentrically arranged below the coin; the inner diameter of the annular light source is greater than the outer diameter of the coin, so light illuminating the vertical surface is reflected by the curved surface reflector to form an image; and an image acquisition device positioned above the center of the coin is arranged above the annular light source. The optical system integrates an optical illumination technology, an automatic control technology and a comprehensive identification method for image acquisition and image processing, so that the imaging effect is good, the identification result is accurate; the structure is simple, and the system is easy to implement. Besides, the optical system can be widely applied to identification of hidden patterns and characters on metal coins and commemorative coins in financial systems all over the world.

The invention relates to a green lighting technology, and discloses a method for generating white light. The method comprises the steps that an ultraviolet light source is adopted, excites at least two ZnO-based quantum dots, and radiates at least one light with the peak wavelength within 470-500 nanometers, and at least one light with the peak wavelength within 550-760 nanometers, and the radiant light is mixed to generate the white light. The white light generated by the method is continuous wide-spectrum white light with a higher display index; a color temperature width range of the white light can be adjusted; the phenomenon of light color distortion is avoided; a light color of the white light is stable; color coordinates and a color gamut are easy to adjust and control; the color coordinates of the generated white light fall in a crescent-shaped white light color interval surrounding a black body locus; the interval includes nearly all white light colors; and ultraviolet light is consumed completely, and converted into long wavelength light with the wavelength greater than 470 nanometers, so that harms of blue light can be reduced.

The invention discloses a white light source containing three-band-gap photonic crystals and a preparation method for the white light source, belongs to the technical fields of light emission and illumination, relates to the application technology of photonic crystals, and particularly relates to a preparation method for improving the luminous intensity and stability of the white light source based on the three-photonic-band-gap characteristics of the three-band-gap photonic crystals and a coating technology. According to the preparation method, mono-dispersion red, green and blue three-fundamental-color fluorescent granules are prepared separately through the coating technology; then the solid-state luminous thin films of the three-band-gap photonic crystals are established by an automatic-assembling method in a layer-by-layer assembling manner; and next, the thin films are combined with an ultraviolet LED to prepare the white light source with the excellent luminescence property.