821 results about "Condensing lens" patented technology

A laser beam having homogeneous intensity distribution is delivered without causing interference stripes of a laser to appear on an irradiation surface. A laser beam emitted from a laser oscillator passes through a diffractive optical element so that the intensity distribution thereof is homogenized. The beam emitted from the diffractive optical element then passes through a slit so that low-intensity end portions in a major-axis direction of the beam are blocked. Subsequently, the beam passes through a projecting lens and a condensing lens, so that an image of the slit is projected onto the irradiation surface. The projecting lens is provided so that the slit and the irradiation surface are conjugated. Thus, the irradiation surface can be irradiated with the laser having homogeneous intensity while preventing the diffraction by the slit.

Photoelectric power generation system being able to follow sun autoamtically belongs to technical area of solar utilization. The system mainly composed of array of solar battery aid its mounting rack, mechanical transmission mechanism, tracking control circuit, sensor for sunlight orientation and resetting control equipment of wine proofing. The sensor for sunlight orientation includes condensinglens, sunlight signal receiver of fine and coarse adjustment. The sunlight signal receiver of fine adjustment includes light-sensitive surfaces in 4 orientations located on end face of base seat. Thesunlight signal receiver of coarse adjustment includes light-sensitive surfaces in 4 orientations located on perisporium of case. The condensing lens is fixed on top end of the case.

It is an object of the present invention to provide a manufacturing method of a single crystal substrate and to provide an internal modified layer-forming single crystal member, each of which is capable of easily manufacturing a relatively large and thin single crystal substrate. The manufacturing method of a single crystal substrate includes: the step of arranging a condensing lens (15), which emits laser beams (B) and corrects aberration caused by a refractive index of a single crystal member (10), contactlessly on the single crystal member (10); the step of irradiating the laser beams onto a surface (10t) of the single crystal member (10), and condensing the laser beams into an inside of the single crystal member; the step of moving the condensing lens (15) and the single crystal member (10) relatively to each other, and forming a two-dimensional modified layer (12) in the inside of the single crystal member (10); and the step of exfoliating a single crystal layer, which is formed by being divided by the modified layer (12), from the modified layer (12), thereby forming a single crystal substrate.

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.

A flat panel display device. The device includes a plurality of self-luminant devices, each of which includes at least a light emitting layer, formed on every pixel, and a lens sheet having a plurality of condensing lenses that correspond to the self-luminant devices and direct the light emitted from the self-luminant devices toward a predetermined direction. A distance between the light emitting layer and an exterior portion of the condensing lens in the direction of propagation of the light is between 50 and 500 microns so as not to overlap images of neighboring sub-pixels, that are expanded by the condensing lenses. Therefore, a lowering of image sharpness that is caused by the condensing lenses can be prevented, while a light coupling efficiency and a brightness are improved.

It is an object of the present invention to provide a laser irradiation apparatus and a laser irradiation method for conducting a laser process homogeneously to the whole surface of a semiconductor film. A first laser beam emitted from a first laser oscillator passes through a slit and a condensing lens and then enters an irradiation surface. At the same time, a second laser beam emitted from a second laser oscillator is delivered so as to overlap the first laser beam on the irradiation surface. Further, the laser beams are scanned relative to the irradiation surface to anneal the irradiation surface homogeneously.

An illumination unit and an image projection apparatus having the same are provided. The illumination unit includes: at least one light source unit which radiates a collimated light beam; an optical integrator which converts the collimated light beam from the at least one light source unit into a uniform light beam; and a condensing lens system, disposed between the at least one light source unit and the optical integrator, which reduces a cross-section of the collimated light beam emitted from the at least one light source unit and then guides the collimated light beam with the reduced cross-section to the optical integrator and has a 1:1 conjugate property between an object and an image of the object.

A light emitted from a semiconductor light emitting device array having a plurality of semiconductor light emitting devices arranged two-dimensionally on a substrate is converged by a condensing lens. In a light guide, a mirror surface is formed from a light incidence port to a light emission port along an inner wall surface. The semiconductor light emitting device array and the condensing lens are arranged in that order toward the light emission port inside the light incidence port of the light guide. A part of the inner wall surface of the light guide is narrowed down substantially along a condensing angle of the condensing lens. The light guide includes parallel inner wall surfaces facing each other, following a portion obtained by narrowing down a part of the inner wall surface, in order to emit the light (each color light) converged by the condensing lens while repeatedly reflecting the light on the mirror surface.

Provided is a vehicle lamp to reduce the horizontal size of a cylindrical lens and illuminate the front of a vehicular lighting fixture brightly. The vehicular lighting fixture comprises a plurality of LEDs (1A, 1B, 1C, ..., 1M) arranged on a straight line (L) extending in a horizontal direction, and a cylindrical lens (2) for condensing light emitted forward from the LEDs (1A, 1B, 1C, ..., 1M) in the vertical direction of the vehicular lighting fixture. In this vehicular lighting fixture, condensing lens sections (3A, 3B, 3C, ..., 3M) that exhibit a higher degree of light condensing in the horizontal direction than in the vertical direction are provided between the cylindrical lens (2) and the respective LEDs (1A, 1B, 1C, ..., 1M).

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.

A single material is used for an optical member, such as a lens, to obtain high optical accuracy. A glass substrate with a plurality of holes is used as a base material (framework), and overall resin contraction occurred during manufacturing is restrained and a wafer-shaped lens module having a plurality of resin lenses with high dimensional accuracy can be formed. Further, variation in the thickness of the glass substrate is absorbed by lens resin formed on the glass substrate, and the thickness of a flange section can be controlled accurately and variation between resin lenses can also be controlled accurately when layered. Further, a lens portion of the resin lens is made only of a single lens resin, and the refractive index can be maintained even, the designing can be facilitated, and the thickness can be controlled accurately to manufacture a condensing lens with high accuracy.

A fisheye camera having infrared lamps comprises a camera body, a fisheye lens and a plurality of infrared lamps. The fisheye lens is disposed at a front end of the camera body. The plurality of infrared lamps are spaced from each other at equal angle and are disposed at outside of the fisheye lens. Each of the plurality of infrared lamps comprises an infrared light emitting diode and a transparent housing for enclosing the infrared light emitting diode. The transparent housing is a condensing lens. The fisheye camera having infrared lamps can simplify the structure of fisheye camera and can improve the appearance of the fisheye camera by using the infrared lamp having lens.

The horizontal cavity surface emitting laser includes a cavity structure portion including a stacked structure of a first conduction type clad layer, an active layer and a second conduction type clad layer stacked over a semiconductor substrate and causing light generated by the active layer to be reflected or resonated, an optical waveguide layer provided at part of the semiconductor substrate and guiding the light, a reflector provided in the optical waveguide layer, for reflecting the light and emitting the light from the back surface of the semiconductor substrate, and a condensing lens provided at the back surface thereof and focusing the reflected light. The back surface thereof has a groove provided with the condensing lens and a terrace-like portion disposed below the cavity structure portion and has a terrace shape with the cleavage direction along a longitudinal direction thereof provided along a cleavage direction of the semiconductor substrate.

A small, lightweight, high intensity illumination assembly for use in dental and medical applications. The illumination assembly includes attachment means for removable attachment to headgear such as eyeglasses, face shields, or headbands, and lenses, loupes, and binoculars associated with such headgear. The illumination assembly is able to achieve extremely light weight by using only a single optical element therein, e.g., an aspheric condensing lens, binary optical element, or holographic optical means, and by piping illumination to the optical element from a remote light source by use of a flexible light guide, e.g., a fiberoptic bundle.

The invention relates to a laser processing device that can change the diameter of a beam spot on an object to be processed, without using a mechanism for changing a distance between a condensing lens and the object. A beam emitted from a laser beam source is condensed by the condensing lens, and is made incident to an optical fiber. The beam emitted from the optical fiber is condensed by a condensing optical system onto an object to be processed. The object is welded using the condensed beam. The laser processing device comprises an adjusting unit that can change the angle of divergence of the beam on the emission surface of the optical fiber. The adjusting unit changes the angle of divergence of the beam, thereby to change the diameter of the beam spot formed on the surface of the object.

The invention relates to a reflecting photometer of golden mark immunity test tape that includes scanning platform, optical system, phototranslating and signal multiplication system and data gathering and control system. The scanning platform is used to locate tested golden mark immunity test tape, and the optical system includes plural illuminating optical paths and a receiving optical path. Each illuminating optical path contains a light source and an illuminating condensing lens. The receiving optical path is made up of collimating mirror, filter, condensing lens and slit diaphragm. The phototranslating and signal multiplication system is made up of phototranslating components and pre-amplification circuit, the data gathering and control system is made up of multifunction data gathering card and computer. The invention could accurately judge the tested object and the thickness. It also has the advantages of high sensitivity, objective testing result and flexible to use.

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.

The object of the invention is to provide a light receiving amplification element applicable to an optical pickup apparatus comprising a semiconductor two-wavelength laser element and one condensing lens. The light receiving amplification element is provided with a plurality of light receiving portions corresponding to different wavelengths, a plurality of trans-impedance type amplifiers connected to the light receiving portions according to the different wavelengths and adaptable to the different wavelengths and switching portion for switching output from the trans-impedance type amplifier according to each of the wavelengths.

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.

The invention discloses an ultra-high resolution optical microscope imaging method and device. In the technical scheme, a special lighting illumination and microscope imaging method combining narrow-band filtering, annular aperture and dark-filed illumination is adopted, and annular transmitting apertures with different numerical apertures, transmittances and filtering characteristics are designed, so that the ultra-high resolution and high-contrast microscope imaging on a micro-nano-sized substance can be realized. The device comprises a high-resolution optical microscope system consisting of an LED (light-emitting diode) lighting source, a light barrier, an annular transmitting hole, a condensing lens, a sample platform, a light-shading wafer, a microscope objective and a microscope image collecting and processing system, wherein the microscope image collecting and processing system consists of a CCD (Charge Coupled Device) image sensor, an imaging collecting card and a computer. The invention can maintain the real-time, direct and non-scanned imaging observation way of conventional optical microscopes, and also embodies excellent resolution and imaging contrast.

An illumination optical system, an illumination unit, and an image projection apparatus employing the same are provided. The illumination optical system includes a light source irradiating a diverging light, a reflection optical system condensing the diverging light from the light source, and a lens optical system projecting the light condensed by the reflection optical system. The reflection optical system is comprised of an aspherical concave mirror. The lens optical system comprises a condensing lens having a positive refractive power in a central part and a refractive power of the condensing lens being decreased toward a circumferential part. Optical efficiency may be improved even when a light-emitting surface of the light source is relatively large and the light source cannot be regarded as a point light source.

The invention discloses an LED light source system and a lighting device using the light source system. The LED light source system comprises a multi-colored LED unit module array, a collimating lens array and a condensing lens, wherein the multi-colored LED unit module array comprises a plurality of LED unit modules; the collimating lens array is used for collimating light beams emitted out by the LED unit modules; the condensing lens is positioned at the rear end of the light path of the collimating lens array and used for converging light emitted from the collimating lens array to a predetermined surface; LED chip groups formed in each LED unit module are imaged to the predetermined surface to form mixed light spots through mutual overlapping of collimating lenses and the condensing lens. LED chips in different colors in each LED unit module are at the same position distribution, so that the mixed light spots have excellent uniformity. In this way, light spots emitted by the light source system are more uniform, and meanwhile, as each collimating lens has the effect of mixing light in multiple colors when collimating the LED chips in multiple colors, a bad visual effect caused by colorful shadows can be weakened.

A solid immersion lens 11 has an inclined portion 4 formed on at least a part thereof from the tip end portion of the objective side to a spherical portion and an inclination angle θ is expressed as θ≧i where θi represents the angle of incidence of light incident on the solid immersion lens 11. There are provided a solid immersion lens capable of increasing a tilt margin between a lens and an optical recording medium and so on and which can decrease a diameter of a lens and a method for forming a solid immersion lens.

The disclosure provides a display apparatus including a display panel including a display substrate having a display area divided into pixel regions and spacing regions each located between every two adjacent pixel regions, the display substrate further includes a light shielding layer formed therein with a light through hole within the spacing region; the display apparatus further includes a condensing lens provided at a side of the light shielding layer facing a light exit side of the display panel at a position corresponding to the light through hole, and a fingerprint identification component provided at a side of the light shielding layer facing away from the light exit side, for capturing light coming from the display panel, reflected by a fingerprint of a finger at the light exit side and passing through the light through hole after being condensed by the condensing lens, to identify an image of the fingerprint.

The invention discloses a color identification system and method. The color identification system comprises a white color light source module, a color collecting module, a single-chip microcomputer and an LCD displayer. The white color light source module comprises a white color light source and a sealing channel connected with the white color light source, and the light of the white color light source is irradiated on an object to be detected after passing through the sealing channel. The color collecting module comprises a color sensor and a condensing lens, the condensing lens is mounted in front of the color sensor, and the light reflected by the object to be detected is collected by the color sensor through the condensing lens. The color sensor converts collected light signals into digital signals and sends the digital signals to the single-chip microcomputer to carry out data processing, and HIS values and RGB values of different color modes are obtained and sent to the LCD displayer to carry out data display. The color identification system is simple in structure, low in achieving cost, high in precision, and suitable for personal use.

An LED lamp includes LED chips, a translucent cover housing the LED chips, a motion sensor unit, a condensing lens, and a power unit. The motion sensor unit includes a light receiving element for light of a predetermined wavelength. The lens condenses light of the predetermined wavelength onto the light receiving element. The power unit controls the state of operation of the LED chips based on an output from the motion sensor unit. The motion sensor unit includes a light shielding member disposed to overlap the light receiving element in an optical axis direction of the condensing lens and also to surround the light receiving element as viewed in the optical axis direction. The light shielding member is made of a material having a lower light transmissivity than that of the condensing lens for a range of wavelengths including the predetermined wavelength.

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.

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.

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.

A laser beam processing machine comprising a path distribution means for distributing a pulse laser beam oscillated by pulse laser beam oscillation means to a first path and a second path alternately, and one laser beam that passes through one of the paths and is converged by one condensing lens and the other laser beam that passes through the other path and is converged by the condensing lens are applied at different focusing points which have been displaced from each other in the direction of the optical axis, alternately with a time lag between them.