755 results about "Condensing lens" patented technology

The invention belongs to the field of optics, and discloses an optical module system for a port detection device, which comprises a shell, a first optical path assembly, a second optical path assembly, a third optical path assembly, a fourth optical path assembly, a first dichroscope and an optical fiber splitter are arranged in the shell, and the first optical path assembly and the second optical path assembly form a reflection mechanism. The third light path assembly and the fourth light path assembly form a transmission mechanism, each light path assembly comprises a light source, a condensing lens, an optical filter and a reflection unit which are sequentially arranged, the reflection units in the first light path assembly and the third light path assembly are reflectors, and the reflection units in the third light path assembly and the fourth light path assembly are second dichroscopes. According to the invention, multi-channel narrow-band light source output can be provided according to requirements, and a multi-channel optical fiber splitter is externally connected. The light source wave band can be selected and adjusted, and multiplexing of a single light source is achieved.

A projection device with dynamic light effect is provided, which includes at least one LED light source, a condensing lens, at least one external projection mono-convex lens, and further includes at least one filter. The filter is located between the condensing lens and the external projection mono-convex lens, an out-light surface of the condensing lens is provided with a first ripple. An upper and / or a lower surface of the filter are provided with a second ripple; being refracted by an interference pattern on the first ripple through the condensing lens, emitted light corresponding to the interference pattern on the first ripple is formed. Then, the light passes through the filter and undergoes two refractions. The light is refracted by the interference pattern on the second ripple, resulting in a refraction effect of the interference pattern superimposed on the first ripple and second ripple.

The utility model discloses a single-point infrared temperature measuring device for a hot end part of an aero-engine, and relates to the field of temperature in-situ detection of engine blades. The device mainly comprises an optical probe with a cooling function, a spectrograph, a photoelectric detector, a high-precision motion positioning platform and a data processing system. The front end of the optical probe reflects radiation energy on the surface of the blade into the collecting lens set through the reflector, the spectrograph divides spectral energy into three different wave bands, signals are collected through the photoelectric detector and the high-speed data collector, and temperature information is obtained through calibration and analysis. The high-precision motion positioning platform adopts a sliding table and a rotating mechanism, and can control the adjustment of the angle of a reflector and the stretching of an optical probe, thereby achieving the precise measurement of the temperatures of different target positions. The whole device is compact in structure, and has the characteristics of high measurement precision, flexible position, low energy loss and the like, and can resist high temperature of 1500 DEG C.

The invention discloses a light source detection method, a light source detection device and a storage medium, and relates to the technical field of electrical appliances, the light source detection device comprises an optical fiber, a light sensor and a collecting lens, the collecting lens is used for converging light of a light source to be detected and emitting the light to the optical fiber, the optical fiber is used for conducting incident light to the optical sensor. The method comprises the following steps: acquiring actual brightness detected by the optical sensor; and determining whether the light source to be detected is qualified or not according to the relationship between the actual brightness and the standard brightness. The invention aims to improve the accuracy of light source detection.

Provided are a lamp unit that can form an irradiation pattern on a road surface almost without tilting an inclination of a lamp unit axis with respect to the road surface, and a vehicle lighting tool using the lamp unit. A lamp unit includes: a light source; a condenser lens that condenses light from the light source; a light-shielding member (shade) provided with an irradiation slit through which the light condensed by the condensing lens partially passes; and a projection lens that projects the light that passes through the light-shielding member (shade) to form an irradiation pattern, which are arranged along a lamp unit axis. The projection lens has a reference focus set on the lamp unit axis, and is disposed at such a position rotated downward about the reference focus, and a projection lens axis is directed further downward than the lamp unit axis.

The invention discloses a dynamic multi-spot projection optical system based on an LED light source, which comprises the LED light source, a reflecting cover, a grating sheet, a condensing lens, a concave reflector and an optical reflection assembly, and is characterized in that the LED light source is arranged at the bottom of the reflecting cover, and the grating sheet is provided with a light-transmitting area with a preset pattern shape; the reflecting cover consists of a plurality of plane reflectors A; the concave reflector consists of a plurality of plane reflectors B; light emitted by the LED light source forms a pattern light beam through the grating piece, the light beam is divided and reflected into a plurality of sub light beams through the conical reflecting cover, and the sub light beams are guided to the condensing lens through the optical reflecting mirror set. According to the invention, a low-cost, laser-free and safe LED scheme is adopted, and through innovative optical design, a complex dynamic light and shadow effect comparable to or even surpassing laser projection is realized, and the imaging definition is kept unchanged within a projection distance range of 2-15 meters.

The invention relates to a laser processing apparatus, a laser processing method, and a substrate cutting method using the same. The laser processing apparatus includes: a stage configured to support a substrate to be processed; a laser light source configured to generate a laser beam; a mode converter configured to convert the laser beam into a cylindrical vector beam; a polarization filter configured to polarize the column vector beam to form a double o-shaped beam in which two beams are arranged adjacent to each other in a first horizontal direction; a condensing lens configured to converge the double o-shaped light beam into a first laser beam and a second laser beam at a first light spot and a second light spot separated in a first horizontal direction on the substrate; and a driving portion configured to relatively move the first laser beam and the second laser beam with respect to the substrate in a second horizontal direction different from the first horizontal direction.

The invention belongs to the field of solar photovoltaics, and provides a CCLFR concentrating solar photovoltaic system and power generation equipment. The CCLFR concentrating solar photovoltaic system comprises a CCLFR concentrator, a supporting structure and PV assemblies which are arranged from bottom to top, wherein the PV assemblies are symmetrical left and right; the CCLFR condenser is of an axisymmetric structure and is a condensing mirror field formed by alternately arranging a plurality of plane mirrors; each plane mirror is used for reflecting incident light to the surface of the corresponding PV assembly; wherein the layout of each plane mirror is related to the width of the battery, the placement height of the photovoltaic battery, the inclination angle of the photovoltaic battery, the inclination angle of the mirror surface, the X-axis coordinate value of the mirror surface end point, the included angle between the reflection light of the mirror surface end point and the X axis, the width of the mirror surface, the width of the mirror field and the transverse distance between two adjacent mirror surfaces.

The invention discloses a tower type solar condensation and heat absorption system based on a novel cavity type absorber. The tower type solar condensation and heat absorption system is composed of a condensation mirror field and an absorption tower. The absorption tower comprises two cavity absorbers which are arranged up and down and have the same structure. According to the cavity type absorber, an internal heat absorption pipe set is arranged in a cylindrical heat preservation cavity, and the inner wall face of the heat preservation cavity is coated with a heat absorption coating. The two heat absorbers are provided with lighting openings in one side of the heat preservation cavity, the directions of the lighting openings of the two heat absorbers are opposite, the sides, provided with the lighting openings, of the two heat absorbers serve as the light facing sides of the two heat absorbers respectively, and sunlight converged by mirror fields of the light facing sides of the two heat absorbers is obtained respectively. The heat absorber is provided with an exposed heat-absorbing pipe group on the outer wall surface of the heat-insulating cavity on the light-facing side; the heat absorption medium firstly exchanges heat through the external heat absorption pipe set on the light facing side, and then further absorbs heat through the heat absorption pipe set in the heat preservation cavity. Sunlight is reflected and converged to the light facing sides of the corresponding absorbers through the mirror fields on the two sides of the absorption tower, so that the area of the mirror fields is enlarged, and the field is more fully utilized.

The invention discloses a light energy focusing vacuum 3D printing fusion forming device and method. The device comprises a vacuum cabin system used for providing a vacuum environment, an optical energy focusing system used for forming fixed high-temperature light spots in the vacuum environment through external optical energy, a powder laying and printing system used for laying powder layer by layer in the vacuum environment and conducting 3D printing through the high-temperature light spots, and a control system used for achieving automatic operation of the whole device. The vacuum cabin system comprises a cabin body, a vacuum pump, a cabin body upper cabin door, a lens mounting seat, a vacuum detection piece and a vacuum valve; the light energy focusing system comprises a condensing lens, a light source and a light shield; the powder laying and printing system is arranged in the cabin body and comprises a powder pool mechanism, a powder laying mechanism and a planar motion mechanism. According to the device, combination of high-energy beam 3D printing fusion forming and vacuum 3D printing is achieved, and the vacuum light energy sintering 3D printing process can be completed under the ground condition.

The invention provides a system and a method for detecting geometric parameters of an optical fiber with a longitudinal periodic structure. The system comprises an optical fiber clamp used for fixing a test part of the optical fiber to be detected in optical fiber refractive index matching oil in a space image imaging device; the light source is used for emitting test light to the collecting lens through the optical fiber bundle, and the test light is focused into a focused light spot through the collecting lens and then is sequentially emitted to the space image imaging device and the detection device; the space image imaging device is used for moving along the axis direction of the to-be-tested optical fiber based on a preset moving speed after the test light passes through a test part in the optical fiber refractive index matching oil so as to form an optical imaging signal corresponding to the test part; and the detection device is used for acquiring geometric parameters of the periodic structure in the to-be-detected optical fiber according to the optical imaging signal. According to the invention, the detection device can accurately obtain the periodic structure geometric parameters of the to-be-detected optical fiber, and the detection precision and reliability are improved.

The invention discloses a high-order non-interference quantitative phase imaging system and method based on single exposure, and belongs to the technical field of optical microscopic imaging. The microscope module comprises a halogen lamp, a condenser, an annular diaphragm, a sample, an objective lens, a phase plate, a lens I, a reflector and a lens II which are sequentially arranged along the light beam propagation direction, and the light splitting modulation module comprises a lens III, a light splitting module I, a light splitting module II, a spatial light modulator, a lens IV and a CMOS camera which are sequentially arranged along the light beam propagation direction. By adopting the single-exposure-based high-order non-interference quantitative phase imaging system, the advantages of stable structure, insensitivity to environmental interference, high phase sensitivity, low spatial noise and the like of a white light illumination system are reserved.

The present invention provides a trough-type solar concentrating tracking bracket, wherein the adjustable lens bracket is provided with a running wheel set, and the running wheel set is driven by a motor to drive the adjustable lens bracket to move along an arc track, so that the trough-type concentrator installed on the adjustable lens bracket can rotate according to the change of the sun's position, thereby reflecting the sunlight from the most suitable direction to the solar collector tube. In this way, only the adjustable lens bracket needs to move, thereby avoiding the frequent movement of the solar collector tube, which not only reduces the maintenance and repair work of the collector tube, but also improves the high-pressure resistance of the collector tube, and at the same time greatly reduces or even avoids possible safety hazards. Therefore, the trough-type solar concentrating tracking bracket of the present invention can conveniently track the reflection of the sun, and has good practicality and market value.

An extreme ultraviolet light generation chamber device includes a chamber including a plasma generation region in which a droplet target irradiated with laser light is turned into plasma and extreme ultraviolet light is generated, a light concentrating mirror arranged in the chamber and concentrating the extreme ultraviolet light, a gas curtain forming device injecting a gas to form a gas curtain intersecting an optical path of the extreme ultraviolet light propagating from the plasma generation region to the light concentrating mirror, an etching gas supply unit supplying an etching gas into the chamber, and a gas exhaust unit exhausting a residual gas in the chamber. Pressure in a second space that is a space on a side toward the light concentrating mirror from the gas curtain is lower than pressure in a first space that is a space on a side toward the plasma generation region from the gas curtain.

The invention provides a super-structure lens condenser and a microscopic imaging lighting device, and belongs to the technical field of microscopic imaging. The technical problems that a traditional Kohler illumination collecting lens is large in caliber, thickness and weight, high in price and not beneficial to light weight and miniaturization of a microscopic system are solved, the technical scheme is that the super-structure lens collecting lens achieves abrupt change of a light field phase through interaction of a micro-nano structure and the light field, and the light field phase change is achieved through the super-structure lens collecting lens. Therefore, the light propagation direction is changed, and the micro-nano structures of the plane lens and the super-structure lens condenser for realizing light beam convergence are periodically arranged according to a certain interval. The beneficial effects are that the super-structure lens is utilized to perform light beam deflection and convergence on a plane by utilizing phase mutation, the limitation that a traditional lens needs a convex surface type or a plurality of lenses to realize large numerical aperture condensation is solved, the limitation on the surface curvature and the transverse size during processing is solved, the longitudinal size of the condensing lens is reduced, and the processing efficiency is improved. And miniaturization of a microscopic imaging system is facilitated.

The present disclosure provides an energy storage power supply. The energy storage power supply includes a shell and a lighting device. The shell is provided with a lighting chamber. The lighting chamber is provided with a first light outlet. The lighting device includes a light-emitting component and a condensing lens. The lighting device is arranged in the lighting chamber. A light-emitting surface of the light-emitting component is arranged in a manner of facing the condensing lens and the first light outlet. The condensing lens is configured to condense light emitted by the light-emitting component to form a small light beam with a long illumination distance. Through the above structure, when a user uses the energy storage power supply in the open air or other occasions, purposes of a longer illumination distance and a clearer viewing field, which greatly improves the practicality and user experience of the energy storage power supply.

A lamp for a vehicle and a method therefor are provided. The lamp includes optical systems to form a beam pattern by irradiating light onto a road surface, and an assembly unit to assemble and integrate the optical systems. Each of the optical systems includes: a light source part to generate light; a condensing lens part provided on a front side of the light source part to condense and output the light input from the light source part; a shield part formed to shield a portion of the light input from the condensing lens part; and an output lens part to output the light passing the shield part to the road surface. The beam pattern includes unit pattern areas formed by the optical systems, respectively, and orientation angle of light output from each of the optical systems on to the road surface is different from one another.

The invention relates to the technical field of high-voltage insulation prediction, in particular to a pilot channel electron density diagnosis system and method based on a slit spectrum, and the system comprises an impulse voltage generator, a high-voltage electrode, a condensing lens, a slit, a first collimating lens, a second collimating lens, a VPHG, a high-speed camera, an electro-optical converter, a photoelectric converter, an oscilloscope, and a computer. According to the invention, the electron density in the pilot channel is accurately obtained, the evolution characteristics of physical characteristic parameters in the pilot channel in the long-gap discharge process can be effectively described, and high-precision calculation of the electron density can be realized without measuring the temperature; compared with the prior art, the method has the advantages that the time resolution and the space resolution are improved, the high diagnosis precision is ensured, the monitoring capability of the electron density change in the pilot discharge channel is enhanced, the change of the electron density can be effectively monitored in time and space, and the physical mechanism and characteristics in the pilot discharge process can be deeply understood.

The invention provides an optical element surface particle detection and cleaning device, which comprises a low-vacuum laminar flow environment module, a particle detection module, a particle cleaning module and a displacement table module, and is characterized in that the low-vacuum laminar flow environment module comprises a working chamber and a laminar flow low-vacuum control unit; the particle detection module comprises a first collecting lens, a second collecting lens, a laser emission assembly and a laser feedback detection assembly; the first collecting lens, the second collecting lens and the laser feedback detection assembly are respectively arranged in the working chamber; the particle cleaning module comprises a pulse laser emitting assembly, a beam expander and a convergent lens, and the beam expander and the convergent lens are arranged in the working chamber; and the displacement table module is arranged in the working chamber and is used for bearing the optical element to move in the working chamber so as to realize detection and cleaning of particulate matters on the optical element. According to the invention, in-situ detection and cleaning of the optical element can be realized in the semiconductor equipment, and the problem of secondary pollution after cleaning can be avoided.

To provide a laser radiation device which can prevent a removed object from adhering to cover glass for protecting a condensing lens in a reliable manner.SOLUTION: In a laser radiation device, a focus lens 1 which causes a laser beam P to converge and be focused on a surface of an object is provided. The laser radiation device which removes an object Q to be removed on an object surface with the laser beam is formed. Cover glass 2 is disposed on the front surface side of the focus lens 1. The laser radiation device includes suction means which suctions the removed object Q and jetting means which jets compressed air R to a surface of the cover glass 2. The compressed air R jetted from the jetting means is suctioned by the suction means.SELECTED DRAWING: Figure 1

The utility model discloses a lamp, which belongs to the technical field of illumination, and comprises a light source, a light guide cylinder, a zoom cylinder and a collecting lens, the light guide cylinder is provided with a first light inlet end, the first light inlet end covers the light source, the zoom cylinder is sleeved on the light guide cylinder, the zoom cylinder is provided with a first light outlet end far away from the light source, the collecting lens is arranged on the zoom cylinder, and the first light outlet end is provided with a second light outlet end far away from the light source. And the zoom cylinder can move relative to the light guide cylinder in the length direction of the light guide cylinder so as to change the distance between the light source and the collecting lens. According to the technical scheme, the design of the lamp can be simplified, and the large-angle light blocking phenomenon generated in the lighting process of the lamp can be avoided.

The invention discloses a groove type photo-thermal photovoltaic power station and sand plant composite installation structure and method, and aims to solve the problems that in the prior art, installation and adjustment of a groove type collecting lens are relatively difficult, the groove type collecting lens cannot adapt to the slope of the top of a sand plant steel structure shed, flexible adjustment cannot be conducted according to the illumination angle, and the installation cost is low. And the light energy utilization efficiency of the photo-thermal photovoltaic power station is influenced. The installation structure comprises a sand yard steel structure shed, the top of the sand yard steel structure shed is provided with a groove type solar thermal power generation assembly, the groove type solar thermal power generation assembly comprises a longitudinal supporting plate, and the top of the longitudinal supporting plate is provided with a rotatable bottom supporting pipe. And the device can adapt to the slope of the top of the steel structure shed of the sand plant, so that the angle of the groove type collecting lens can be adjusted, and the light energy utilization efficiency of a photo-thermal photovoltaic power station is improved.

The utility model provides a lifting mechanism of an inverted microscope condenser, which comprises a microscope main body, and a guide rail mechanism is arranged above the microscope main body; the lifting mechanism is arranged at the bottom of the guide rail mechanism; the collecting lens is mounted on the guide rail mechanism in a sliding manner through a collecting lens fixing bracket; the guide rail mechanism comprises a high-precision ball screw with a rotating gear at the bottom; the linear moving pairs are arranged on the left side and the right side of the high-precision ball screw; the lifting mechanism comprises a self-locking worm and gear pair meshed with the rotating gear; the rolling bearing is connected with the outer side of the self-locking worm and gear pair; the lifting rotating shaft is connected with the outer side of the rolling bearing; the lifting knob is connected with the outer side of the lifting rotating shaft. The device is easy and convenient to operate and high in efficiency, and the collecting lens can be adjusted to any height.

The embodiment of the utility model provides a laser converter and a laser device. Wherein the laser converter comprises a shell, one side of the shell is provided with a laser input port, and the other side of the shell is provided with a laser output port; the nonlinear crystal is arranged in the shell and is used for converting the laser emitted from the laser input port into laser with a set wavelength; the first collecting lens is arranged in the shell and located on the side, away from the laser input port, of the nonlinear crystal, and the first collecting lens is used for focusing the laser with the set wavelength so that the laser output port can emit the focused laser. The laser converter can convert the laser, so that when the laser converter is applied to the laser device, the laser converter can be used for converting the laser originally emitted by the laser device, the laser originally emitted by the laser device is reserved, the laser device can emit the laser with the set wavelength by means of the laser converter, and the universality is good; and laser with set wavelength can be directly generated without adding a laser generator, so that the structure is simplified.

The utility model discloses an electric microscope, belongs to the technical field of biological microscopes, and solves the problems that the structural parameters of the existing electric microscope cannot be adjusted, an objective table shakes in the focusing motion process, and a slide is easy to crush. The device comprises a base and a supporting vertical plate, the other side of the supporting vertical plate is provided with an electric mechanism for controlling the collecting lens assembly and the objective table to ascend and descend, the electric mechanism comprises a main lifting motor, a guide rail II, a ball screw I and a sliding block assembly I, the output end of the main lifting motor is connected with the ball screw I, the sliding block assembly I is installed on the guide rail II in a sliding mode, and the sliding block assembly I is in threaded connection with the ball screw I; and the slide block assembly I is in threaded connection with a pressure adjusting screw. According to the electric microscope, the front-and-back and left-and-right moving range of the slide is enlarged, the risk that the slide is crashed or a mechanical structure is damaged by electric control is reduced, and the influence of shaking in the lifting process of the objective table is reduced.

The utility model provides a collecting lens and a lighting system, the lighting system comprises a collecting lens and a light source connected on the collecting lens, the collecting lens comprises a lens main body, and a light mixing lens and a condensing lens which are arranged on the lens main body. The condensing lens mixes the light rays emitted by the light source through the light mixing lens, and then condenses the light rays through the condensing lens, so that the projected light rays are uniform, disordered light spots can be effectively reduced, the light ray integrity is better, and the illumination effect is better. The condenser is particularly suitable for a light source with multicolor or double-color lamp beads, the color consistency of light rays emitted by the light source can be effectively improved, the lighting effect is enhanced, and the use requirements of users for use diversification are efficiently met.

The invention discloses a spectral confocal efficient three-dimensional measurement device and method based on a spatial light modulator. The device comprises an illumination module and a detection module. The illumination module comprises a white light LED light source, a collimator, an LED condenser, a digital micromirror device DMD and a dispersion objective lens; the detection module comprises an imaging objective lens, a CCD detector and computer processing equipment. According to the invention, traditional point-by-point spectrum confocal measurement is expanded to area array type measurement, so that the measurement speed can be effectively improved; meanwhile, different from a scanning type or fixed pinhole type parallel measurement scheme, the invention uses a pinhole array with controllable diameter and spacing, thereby improving the flexibility and lateral resolution of measurement.

The invention provides a concentrating photovoltaic power generation system and a control method thereof. The system comprises a collecting lens, a guide rail bracket, an arc-shaped guide rail, a photovoltaic panel, a gear, a guide rail motor, a connecting piece, a guide rail sliding block and a roller, the arc-shaped guide rails are installed on the two sides of the collecting lens in parallel through guide rail supports, the convex face is provided with a rack structure, and the size of the rack structure is determined in advance according to the moving track of light gathered by the collecting lens. The end part of the photovoltaic panel is connected with a guide rail sliding block through a connecting piece; the guide rail sliding block and the arc-shaped guide rail form a sliding fit structure through a roller; the guide rail motor is fixedly installed on the guide rail sliding block, and an output shaft of the guide rail motor is connected with the gear meshed with the rack structure of the arc-shaped guide rail. When the guide rail motor drives the gear to rotate, the guide rail sliding block is driven to slide on the arc-shaped guide rail, the photovoltaic panel is controlled to move along the arc-shaped track of the arc-shaped guide rail, and light gathered by the collecting lens is irradiated on the photovoltaic panel. The optical loss can be reduced, and the solar power generation power and the utilization rate of unit land area can be improved.

The optical detection device comprises a light emitting module and a light receiving module, the light emitting module comprises a first light source unit, a light receiving lens, a first light filter, a light combining lens and a projection lens which are arranged in sequence, and the first light source unit comprises one or more light sources; the light receiving lens converts the light beam into a light beam with a light included angle smaller than a first preset value, the light combining lens is used for deflecting and converging the light penetrating through the first optical filter, and the projection lens is used for projecting the light on a detected object so that the detected object can be excited to emit fluorescent light; the light receiving module comprises a light receiving lens, a light splitting unit, a second optical filter, a condensing lens and a sensor which are arranged in sequence, the light receiving lens is used for receiving fluorescent light and converting the fluorescent light into light beams with light included angles smaller than a second preset value, and the light splitting unit is used for guiding light with different wavelengths to different directions; and the light rays in different directions sequentially pass through the second optical filter and the condensing lens in the direction and then enter the sensor. And the light receiving and emitting efficiency is improved.

The invention provides a high-enthalpy flow field particle concentration measurement system and method based on two-photon laser-induced fluorescence. The system comprises a laser, a high-enthalpy flow field wind tunnel module, an imaging module, an image processing module, a reflector, a three-dimensional galvanometer, a three-axis displacement table and a collecting lens. The centers of the reflecting mirror, the three-dimensional galvanometer and the collecting lens are coaxial and located on the same light path plane, and the three-dimensional galvanometer and the collecting lens are both fixedly installed on the three-axis displacement table; the laser device generates a laser beam, the laser beam is irradiated to the three-dimensional galvanometer through the reflecting mirror, the direction of the laser beam is changed by deflecting the three-dimensional galvanometer and / or moving the three-axis displacement table, and then the laser beam with the changed direction is irradiated to particles to be measured in a flow field area to be measured through the collecting mirror to generate fluorescent light; the imaging module collects fluorescence generated by irradiation of the laser beams to obtain fluorescence data; and the image processing module is used for processing the fluorescence data to obtain a three-dimensional image of the to-be-detected particle. According to the scheme, three-dimensional scanning measurement of the high-enthalpy flow field without a sheet light source is realized, the measurement precision is improved, and the requirement on the energy of the laser is reduced.