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821 results about "Condensing lens" patented technology

Catadioptric light distribution system

A Catadioptric Light Distribution System is disclosed. The system collects and collimates the hemispherical pattern of light emitted by a Lambertian light emitting diode (LED) into a collimated beam directed essentially parallel to the optical axis of the LED. The system comprises a circular condensing lens having a center axis that is aligned with the optical axis of the LED and which is configured to receive an collimate a portion of the light from the LED defined by a central cone of light centered around the optical axis. A parabolic reflector having circular opening formed therethrough is centered on the center axis of the parabolic reflector and is positioned around the LED to receive and redirect the light which does not form the cone that impinges upon the condensing lens in a collimated annular beam in a direction away from the condensing lens. The light reflected and culminated by the parabolic reflector is directed onto a circular annular double bounce mirror which is configured and positioned to receive the annular beam from the parabolic reflector and reflect that beam of light 180° so that it is collimated in an annular beam which passes around the edge of the condensing lens. Thus, substantially all the light emitted by the LED is culminated into a beam of light that is substantially parallel to the optical axis of the LED by either the condensing lens or by the combination of the parabolic reflector and the double bounce mirror.

High-collimation solar simulator optical system with auto-collimation aiming system

InactiveCN101907773AAccurate zero calibrationEliminate human influenceIndividual semiconductor device testingOptical elementsEyepiecePlane mirror
The invention relates to a high-collimation solar simulator optical system with an auto-collimation aiming system, belonging to a solar simulator optical system in the technical field of optics design and aiming at solving the technical problem of providing a high-collimation solar simulator optical system with the auto-collimation aiming system. The high-collimation solar simulator optical system with the auto-collimation aiming system comprises a xenon lamp source, an ellipsoid condenser, a plane mirror, an optics integrator assembly, a first dispersion prism, a second dispersion prism, an emission reticle, an LED light source, an aiming reticle, an ocular lens and a collimator objective. On the basis of the traditional high-collimation solar simulator optical system, an auto-collimation aiming system is added on an optical path of the optical integrator assembly, wherein the auto-collimation optical system comprises a first dispersion prism, a second dispersion prism, an emission reticle, an LED light source, an aiming reticle and an ocular lens. The invention can ensure more accurate zero calibration so as to eliminate the man-made influence and achieve better experimental effect.

Solar power generation heat collecting method and special device thereof

The invention discloses a solar power generation heat collecting method and a special device thereof. The method comprises a condensing method, a receiving method and an automatic tracing method, wherein the receiving method is: sunlight which is condensed by a condensing system is focused to a focus point III-V compound photovoltaic cell, the generated electric power is synchronized through an inverter or is collected by a storage battery, and the produced heat is collected by a circular water circuit. The special device comprises a condensing system, a receiving system and an automatic tracing system. A small condensing lens is used for reflecting the light, so the light reflection efficiency can reach 95 percent; a big lens is used for condensing and focusing, so the optical energy density of the sunlight can be greatly improved to more than 1000 times; a gallium arsenide solar module is selected, so the conversion efficiency is improved, and the electric power which is two to three times of that of an ordinary photovoltaic cell can be generated; and the automatic tracing system is used, so the generated power of the entire system is improved by more than 30 percent compared with the traditional fixed-type system. In addition, a movable installation way and a fixed installation way can be adopted, so the device has wide application range.

Laser broadband cladding device and method

The invention discloses a laser broadband cladding device and method. The device mainly consists a beam splitter prism and two converging lenses, wherein the beam splitter prism is formed into a molded surface by two beam splitter planes which are symmetrically arranged and are intersected at a certain angle; an incident solid laser beam can be symmetrically reflected by the two beam splitter planes to form two reverse emergent laser beams; the two converging lenses are respectively opposite to the two beam splitter surfaces of the beam splitter prism; two beams of laser reflected by the beam splitter prism can be respectively reflected into parallel near rectangular laser beams by the converging lenses; the distance between the two beams of parallel near rectangular light is shorter and shorter in the focusing process to form long and narrow focusing light spots; and the light spots are overlapped on a focal plane. The laser broadband cladding device disclosed by the invention has the advantages of big cladding width and high efficiency, a powder bundle does not interfere with a light beam too early in the falling process, and the light beam has a small reflection loss; the powder enters the light in an accurate, straight, thin and stiff way, is evenly distributed and has the advantages of small diffusance and high use ratio; the coupling precision of the powder and the laser beam is high; turnaround scanning forming can be realized; a cladding channel has even tissue; the overlapping joint quality is good.

Design method of solar energy uniform light superposition reflective condenser

The invention discloses a design method of a solar energy uniform light superposition reflective condenser, wherein a light receiving surface is a photocell plate or a circular heat collection pipe. The design method is characterized in that a condensing lens consists of a limited number of flat plate reflection mirrors and broken line-shaped reflection mirror slot frames and is placed on a solartracking frame, a precise calculation formula of the width and the position of a space coordinate of each reflection mirror and the detailed steps of the geometric mapping method are deduced accordingto the constraint condition that two parallel light rays reflected by two end points of a line segment of a cross section of each reflection mirror respectively fall on two end points of a line segment of the cross section of the photocell plate or are respectively tangent with the circumference of the cross section of the circular heat collection pipe and the normal line of a mirror surface of the reflection mirror is an angle bisector of an included angle between incident light and reflected light, thereby ensuring that the reflected light of each flat plate reflection mirror is uniformly superposed on the light receiving surface, leading the single-chip output features of the photocell to be consistent, improving the light-emitting efficiency of components, leading the processing of the condenser to be easy and reducing the cost. The calculation formula can be used for optimizing the tilt angle and the nominal focal length of the photocell plate.

Laser processing device

The invention provides a laser processing device, which is capable of effectively collecting and discharging dust like debris generated by irradiating laser ray from a condenser to an object to be processed. The laser ray irradiation component comprises a laser ray oscillator, a condenser having a condensing lens for condensing laser rays, and a dust discharging component which is disposed at the end of the condenser near the downstream side of the laser ray irradiation direction. The dust discharging component comprises a dust collector, consisting of an upstream sidewall, a downstream sidewall and an outer sidewall. The upstream sidewall is provided with a first opening which enables the laser ray irradiated from the condenser to pass and acquire air obtain. The downstream sidewall is provided with a second opening which enables the laser ray irradiated through the first opening to pass and suck dust. The outer sidewall is connected to the upstream sidewall and the downstream sidewall, forming a dust collecting room. The outer sidewall is provided with an exhaust outlet enabling the dust collecting room and a suction source to commutate with each other. An outer air acquiring channel which enables the first opening to communicated with the outer air is disposed between the dust collector and the condenser.

Automatic focusing system used for regulating solar condensing lens and focusing method thereof

The invention discloses an automatic focusing system used for regulating a solar condensing lens and a focusing method of the automatic focusing system. The automatic focusing system comprises image display equipment, image collection equipment and image data processing equipment, wherein the image collection equipment is used for collecting data of images reflected by reflectors; the image display equipment is used for displaying display images which are controlled to be output by the image data processing equipment; the image data processing equipment is used for controlling the image display equipment to output the display images corresponding to region areas of the reflectors of a condensing system in a one-to-one mode, the display image of the region area of any one reflector and display images of region areas on the peripheries of the reflectors are different color images, and the image collection equipment is controlled to perform analysis and processing and output corresponding focusing data after collecting the corresponding images. According to the automatic focusing system, the inclination angle is judged by observing the image colors of the reflectors, the color ratios of discs are calculated and are compared with a pre-stored empirical data base, regulating efficiency is improved substantially, and the regulating time is shortened.
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