155 results about "Condensing lens" patented technology

This application provides a soft flash structure and a mobile phone. The soft flash structure includes a soft light, a soft lens, and a light shield. The curved reflective lens section has an incident curved surface and a reflecting curved surface on opposite sides, both curved away from the planar lens section. The planar lens section has a reflecting plane on opposite sides, and the condensing lens section has a condensing reflecting surface and a light emitting surface on opposite sides. The incident curved surface, one reflecting plane, and the condensing reflecting surface are connected sequentially, as are the reflecting curved surface, the other reflecting plane, and the light emitting surface. The soft light, the curved reflective lens section, the planar lens section, and the condensing lens section are housed together within the light shield. The light emitted by the soft light is at least partially incident on the incident curved surface and reflected sequentially by the reflecting surface, the two reflecting planes, and the condensing reflecting surface, before exiting through the light emitting surface. The aforementioned soft flash structure can form a gradually softened light spot with better light uniformity.

The invention discloses a design method of a uniform condensing lens with wide angular domain receiving performance, which relates to the technical field of space solar power stations and comprises the following steps: constructing energy equations of each receiving area and a plurality of lens ring teeth corresponding to the receiving area by taking uniform energy distribution on each receiving area as a constraint; wherein the lens ring teeth are located on the emergent surface of the lens, and light enters from the incident surface of the lens and reaches each receiving area after being refracted; determining a lens ring tooth number corresponding to each receiving area according to a preset condensation ratio and an energy equation; analyzing the influence of the inclination angle of the lens ring tooth on the optical characteristics of the lens ring tooth, and obtaining the critical value of the inclination angle of the lens ring tooth and the optimal focal length of the lens; and designing a generatrix of the lens, and constructing a uniform condensing lens function with wide-angle-domain receiving performance so as to realize parameter design of the lens. The problem that the condensation efficiency and the light spot uniformity are suddenly reduced during non-vertical incidence of light can be effectively solved.

A multicolor light mixing module includes a light-dividing unit, a light-homogenizing member, a first laser set including first and second lighting units in a sequential arrangement, a light-mixing unit obliquely opposite to the light-dividing unit for guiding a first color light of the first lighting unit and a second color light of the second lighting unit along first and second light-mixing axes to form first and second laser beams, and a condensing lens. The light-dividing unit is obliquely opposite to the first laser set to allow partial transmission and partial reflection of the first and second color lights, for guiding the first and second color lights along first and second light-dividing axes. The light-homogenizing member is disposed on the first and second light-mixing axes for homogenizing the first and second laser beams. The condensing lens between the light-homogenizing member and the light-mixing unit condenses the first and second laser beams.

The utility model relates to a light emitting device. The light-emitting device comprises a light-emitting assembly, a shading piece and a condensing lens, the light-emitting assembly comprises a light-emitting chip, the light-emitting assembly is provided with a mounting groove, and the light-emitting chip is arranged in the mounting groove. At least part of the shading piece is arranged in the installation groove, the shading piece is provided with a light passing hole corresponding to the light-emitting chip, the light passing hole is provided with a light passing opening for limiting the light passing amount, and the size of the light passing opening is smaller than or equal to the size of the light-emitting face of the light-emitting chip. The condensing lens is arranged on the light-emitting assembly or the shading piece and corresponds to the light passing hole. The light-emitting device can output small-angle light beams only by means of the shading piece and the condensing lens, a plurality of lenses do not need to be arranged, and the structure is simple; the size of the shading piece is matched with the size of the light-emitting chip, and the size of the condensing lens is matched with the size of the light passing hole, so that the size of the light-emitting device can be greatly reduced, the miniaturization of the light-emitting device is realized, and the cost of the light-emitting device is remarkably reduced.

The application discloses a high-energy extremely-short-pulse-width incandescent light source system based on argon, and relates to the field of air flow tests.The high-energy extremely-short-pulse-width incandescent light source system comprises a high-voltage electrode for performing arc flash when high voltage is applied, the high-voltage electrode comprises a high-voltage anode and a high-voltage cathode capable of performing arc flash when high voltage is applied, and the high-voltage anode and the high-voltage cathode have a predetermined distance; an argon supply device for supplying argon between the high-voltage anode and the high-voltage cathode; a light device and a condenser lens group oppositely arranged on both sides of the high-voltage electrode; a power supply for supplying power to a high-voltage energy storage device, wherein the high-voltage energy storage device is electrically connected with the high-voltage electrode; a control module for performing time sequence control on the high-voltage anode and the high-voltage cathode; and an input and output module connected with the control module and the power supply.The application uses argon instead of conventional air as an ionization medium in the high-voltage electrode, so that the extremely-short-pulse-width can be realized when arc flash occurs, and the electrode can be prevented from being oxidized and damaged.

A laser processing head (10) is provided with: a bending mirror that bends a second laser in a direction that intersects a first laser; a dichroic mirror that transmits most of the first laser to the workpiece (W) side and reflects most of the second laser to the workpiece side; a workpiece-side condensing lens that condenses each laser and irradiates the workpiece; an image sensor that receives a remaining portion of the first laser reflected by the dichroic mirror and a remaining portion of the second laser transmitted through the dichroic mirror; a detection-side condensing lens that condenses each laser and irradiates the image sensor; and an adjustment unit that adjusts a workpiece-side condensing state in an image plane on the workpiece side. The image sensor detects a detection-side condensing state in an image plane on the image sensor side. The workpiece-side condensing state is adjusted by the adjustment unit based on the detection-side condensing state.

The outer contour of the condensing lens is in a similar circular truncated cone shape, the lens comprises a light emitting face located at the large-diameter end, a light inlet hole and a total reflection circumferential face, the light inlet hole is formed by sinking from the end face of the small-diameter end to the interior of the condensing lens, the light inlet hole comprises a front light inlet face and a side light inlet face, the front light inlet face is opposite to the light emitting face, and the side light inlet face is opposite to the side light inlet face. The middle of the front light incident surface protrudes towards the hole opening of the light incident hole to form an arc-shaped convex surface, the side light incident surface comprises a first circumferential surface section and a second circumferential surface section, the first circumferential surface section is located between the hole opening and the second circumferential surface section, and the first circumferential surface section is provided with a texturing structure; the light-emitting face comprises a plurality of gear rings distributed in a concentric circle mode, the tooth crests of the gear rings protrude away from orifices, the tooth widths of the gear rings are gradually decreased from the inner ring to the outer ring, the tooth inclination angles of the gear rings are gradually increased from the inner ring to the outer ring, and the tooth heights of the gear rings are gradually decreased from the optical axis of the condensing lens to the periphery. The lamp is provided with the condensing lens, the size of the condensing lens can be reduced, and the condensing effect is good.

The utility model discloses a methanol reforming hydrogen production device based on solar energy and tail gas utilization, which relates to the field of new energy utilization and chemical production and comprises a solar heat collector and a methanol reforming reactor. The solar heat collector comprises a groove type paraboloid collecting lens, sunlight irradiates the collecting lens and is reflected to a focus point, and the methanol reforming reactor is located at the light reflection focus point of the groove type paraboloid collecting lens; the methanol reforming reactor comprises an aluminum alloy pipe, a tail gas flow pipe, a methanol reforming pipe, a gas inlet pipe and a gas outlet pipe; the tail gas flow pipe is nested in the aluminum alloy pipe, a plurality of methanol reforming pipes are distributed in an interlayer between the tail gas flow pipe and the aluminum alloy pipe, and the gas inlet pipe and the gas outlet pipe are communicated with all methanol reforming pipes; the aluminum alloy pipe absorbs heat generated by sunlight, and the tail gas flow pipe absorbs waste heat of tail gas circulating in the tail gas flow pipe to jointly supply heat to the methanol reforming pipe; methanol steam enters the methanol reforming pipe from the gas inlet pipe, reacts in the methanol reforming pipe to generate hydrogen-rich reforming gas, and is discharged from the gas outlet pipe.

The clean development mechanism requires to replace fossil fuel with clean energy as much as possible. According to an existing solar heating pipe heat collecting device, a heating pipe is fixed, and a collecting lens is generally arranged at a small corner of the ground, so that design and construction are convenient, and investment is saved; however, a mirror surface system is insufficient in lighting quantity, low in efficiency, insufficient in energy reflected to a heating pipe, low in light energy utilization rate and single in heating; sufficient solar energy is wasted in vain around many energy-consuming places, and there is no suitable facility for use, such as heating in many old industrial and mining scenes, offices, schools, hospitals, hotels, common people and the like, so that the solar energy is wasted in vain. The invention provides a suspension type solar condensation heating pipe system, a heating medium heating pipe is arranged at the high altitude and is just close to a focus line of a groove type condensation lens, the condensation lens is hung on the heating pipe, and the condensation lens irradiates a heating pipeline; the heating pipe can also be of an assembly combined structure, so that multifunctional heating is realized; solar energy can be easily and efficiently utilized in existing cities and villages at low cost.

This invention relates to the field of optical technology, specifically to a device for measuring the far point distance of the human eye. It includes a cylindrical housing containing a condenser lens and a light-shielding plate, spaced apart. The light-shielding plate has observation channels symmetrically arranged along the optical axis. A blocking plate, positioned along the optical axis between the condenser lens and the light-shielding plate, separates the observation channels. By using the blocking plate on the optical axis, interfering images can be eliminated, and when the optical axis is deflected, the imaging of one light source will show a significant deviation, making it easy to adjust the blocking plate.

This invention discloses a method for controlling the energy flux density distribution of a concentrating solar furnace device. The method includes: constructing an optical system model of the concentrating solar furnace device; determining an energy flux density distribution control model based on the optical system model, according to the cross-offset parameter within the light focusing point of the reactor, the position parameter of the heat-absorbing platform where the reactor is located, and the curvature parameter of the concentrating mirror; determining control parameters of the concentrating solar furnace device based on the energy flux density distribution control model, according to the set target region size, the peak energy flux control range within the target region, and the range of non-uniformity factors of the energy flux distribution within the target region, combined with the direct normal irradiance (DNI) parameter; the target region is the preset area to be focused by the reflected light; and controlling the operating state of the corresponding components of the concentrating solar furnace device according to the control parameters. This invention solves the problem that existing control methods are insufficient to achieve the desired control of thermochemical reaction products.

The application discloses a metallographic microscope with bright and dark field switching function, which comprises an observation component, a stage, a rack main body, a bright and dark field switching mechanism, a converter, a condenser component, a light collector and a lower light source, wherein the bright and dark field switching mechanism comprises a shell, an upper light source, and a first filter unit, a second filter unit, a first diaphragm adjusting unit, a second diaphragm adjusting unit, a condensing unit, a polarizing unit, a detection polarizing unit and a field switching unit which are all arranged in the shell; the observation component is arranged above the shell, the converter is arranged below the shell, the shell, the stage, the condenser component, the light collector and the lower light source are all connected with the rack main body, and the converter, the stage, the condenser component and the light collector are sequentially arranged from top to bottom; and the working state of the field switching unit is converted to be a bright field or a dark field by adjusting. The device can quickly switch the bright field and the dark field, improve the utilization rate of the light path, eliminate stray light, and is convenient for observing and collecting data.

The application discloses a kind of photothermal synergic high-temperature insect killing device and method based on dish type condensing, including dish type condensing mirror;Cavity type heat collection and killing assembly is arranged in focal region, and heat absorption cavity is formed in it;Light guide moth attracting component includes light guide cone and induction scattering ring, the input end of light guide cone extends to focal region, and output end is connected with induction scattering ring, induction scattering ring is arranged outside the entrance of cavity type heat collection and killing assembly, for scattering exported sunlight and forming moth attracting light field;Bionic light modulation system includes pulse LED light source, micro photovoltaic power supply module and microcontroller, and bionic optical modulation dynamic moth attracting algorithm is stored in microcontroller memory, generates auxiliary moth attracting light field of dynamic change, auxiliary moth attracting light field and the moth attracting light field formed by induction scattering ring are superposed, and act on target pest together.Solve the problems of low energy efficiency, frequent maintenance and easy to decay of insect attracting efficiency of existing solar insect killing device, improve the energy efficiency ratio and reliability of solar insect killing.

According to the method, a programmable LED lamp is installed on a microscope condenser, a light source is adjusted to the height of a sample table, then four inclined illumination modes including the upper, the lower, the left and the right are switched, part of coherent light is obliquely incident to a sample, at the moment, emergent light waves carry amplitude and phase information of the sample, and the sample can be observed in a high-resolution non-destructive mode. The sample is collected by the high magnification objective lens, the corresponding intensity image is collected by the CCD camera, and the collected original image is subjected to deconvolution by using the differential phase contrast imaging principle to obtain the biological information such as the thickness and the dry mass of the sample. A programmable annular LED is adopted as an illumination light source to enhance the phase contrast of a low-frequency space and reduce noise interference, and the illumination light source forms an angle of 15 degrees with a sample platform and directly irradiates a sample to generate a uniform illumination light source. The submicron organelle can be dynamically observed in real time through the high numerical aperture objective lens, and organelle edge extraction and 3D form reconstruction are obtained by using a deconvolution reconstruction algorithm.

The utility model relates to the technical field of optical systems, in particular to an oblique illumination embossment microscopic imaging system based on a phase difference light path, which comprises a light source, an adjustable oblique illumination phase difference baffle plate, a collecting lens, a sample platform, a phase difference objective lens and an imaging device, the sample platform is located at the position of a rear focal plane of the collecting lens, the phase difference objective lens is located below the sample platform, the center line of the phase difference objective lens coincides with the center line of the collecting lens, the imaging device is located below the phase difference objective lens, and the adjustable inclined illumination phase difference shielding plate comprises a phase difference ring plate, a phase difference ring and a light shielding plate. Parameters of the phase difference ring are matched with multiples of the phase difference objective lens, and the shading plate is installed on the phase difference ring plate in a sliding mode. The system provided by the utility model can realize continuous adjustment, and is good in relief observation effect, high in universality, simple in structure and low in cost.

The invention provides a GHz pulse train laser light source system, which comprises a bearing module for bearing a composite material; the laser generation module provides a laser beam; the laser beam expander is used for generating an expanded laser beam; the X-axis laser galvanometer scanning module is used for reflecting and expanding the laser beam; the X-axis laser galvanometer controller is used for controlling the rotation angle of the X-axis laser galvanometer scanning module in the X-axis direction; the Y-axis laser galvanometer scanning module is used for reflecting and expanding the laser beam; the Y-axis laser galvanometer controller is used for controlling the rotation angle of the Y-axis laser galvanometer scanning module in the Y-axis direction; the collecting lens is used for focusing the expanded laser beam from the Y-axis laser galvanometer scanning module into a focused laser beam with a high diameter-depth ratio expected to be machined so as to project the focused laser beam to one or more drill holes of the composite material; the monitoring module is used for monitoring the drilling state of the composite material; wherein the pulse width of the laser beam ranges from 50 fs to 500 fs.

A display substrate and a display screen are provided. A trapezoidal reflection structure is arranged on a TFE layer, a low-refractive-index reflection layer is arranged on the trapezoidal reflection structure, a high-refractive-index reflection layer is arranged on the low-refractive-index reflection layer, and a cover plate is attached. In a case that light is reflected by the high-refractive-index reflection layer toward the low-refractive-index reflection layer, due to a difference between refractive indices, a part of the light is totally reflected after an incident angle is greater than a critical angle. The low-refractive-index reflection layer serves as a condensing lens to change large-angle transverse light into active forward light, so as to improve the light transmittance of the display substrate, and increase the brightness at a front viewing angle.

The purpose of the present invention is to provide a protective glass cleaning system and a protective glass cleaning method with which it is possible to sufficiently ensure the quality of a fabricated article. A protective glass cleaning system (10A) is provided to an additive manufacturing device for fabricating a fabricated object by irradiating a powder with laser light to melt and bond the powder. The protective glass cleaning system (10A) comprises: a cleaning mechanism that cleans protective glass (2) for protecting a condensing lens which condenses the laser light from fouling; and a control unit that controls the cleaning mechanism. The control unit controls the cleaning mechanism so as to clean the protective glass (2) at a prescribed timing during fabrication of a fabricated object.

The invention relates to the technical field of internal combustion engine safety monitoring, and discloses an oil mist concentration detection mechanism for a diesel engine crankcase, which comprises a mounting main body, a black-plated inner wall cylinder arranged in the mounting main body, and an infrared laser, a photoelectric receiver and a condenser which are mounted on the mounting main body, one end of the mounting main body is connected with an air knife mounting seat, and an air knife inner ring and an air knife outer ring are mounted on the air knife mounting seat; the infrared laser is configured to emit laser to the interior of the black-plated inner wall cylinder, and the collecting lens is configured to capture scattered light in the measuring cavity and transmit the scattered light to the photoelectric receiver. The black-plated inner wall cylinder of which the inner wall is plated with the ultra-black light absorption extinction nano coating film is arranged in the measurement cavity, and the infrared laser main body directly penetrates out of the measurement cavity, so that multiple reflections of environmental natural light and scattered light in the cavity are effectively absorbed, and meanwhile, the interference of a main light beam on a measurement result is eliminated.

The invention relates to an illumination system for a surgical microscope, comprising at least one illumination beam path, comprising at least one light source for generating at least one illumination beam for illuminating an object to be observed, a coupling mirror group, a collecting mirror group and an objective lens, the coupling lens group and the condensing lens group are arranged in a manner that an intermediate image of the light source is positioned on the rear side of the condensing lens group and between the front focal plane of the objective lens and the objective lens when being observed along the light direction; wherein the illumination light rays emitted from the objective lens are not parallel to one another, the illumination light beams meet the following relation: 0.9 < = z / f < = 1.1, z is the distance between the focusing position of the illumination light spot and the lower surface of the objective lens, and f is the focal length of the objective lens. According to the illumination system for the operating microscope, good optical performance and good red light reflection uniformity can be ensured, and meanwhile compact structural layout, small structural size and reduced cost can be achieved.

The present application relates to the technical field of lighting fixtures, and specifically relates to a light-sensing sensor, a lighting fixture and a use method. The light-sensing sensor comprises a condensing lens, a light sensor and a housing; the housing is provided with an accommodating space; the housing is provided with a through hole; the condensing lens and the light sensor are each fixedly arranged within the accommodating space of the housing; a portion of the condensing lens is provided within the through hole; the condensing lens and the light sensor are arranged corresponding to each other; the condensing lens is used for collecting light outside the housing, and the light sensor is used for sensing a change in the light collected by the condensing lens. The present application provides the light-sensing sensor, the lighting fixture and the use method to solve the problem of existing sensors that a light-collecting element and a sensing element are respectively fixed by means of two components during a design process, and during later assembly and use, an installation error between the two leads to inaccurate positioning between the light-collecting element and the sensing element, which affects the use performance of the sensors and results in poor experience.

The invention relates to the technical field of optical fiber transmission devices, in particular to a sunlight high-power condensation optical fiber transmission device and a using method thereof.The sunlight high-power condensation optical fiber transmission device comprises a machine base, a plurality of supporting plates are fixedly connected to the machine base, connecting arc plates are rotationally connected to the supporting plates, paraboloid condensers are fixedly connected to the connecting arc plates, and the paraboloid condensers are connected to the paraboloid condensers. A transmission shaft is rotationally installed on the connecting arc plate, a driving part used for driving the transmission shaft to rotate is arranged on the machine base, and a sealing part which is opened when the paraboloid collecting lens rotates to the vertical state is arranged on the bottom face of the paraboloid collecting lens. The machine base is provided with a supporting part, wherein the supporting gravity center of the supporting part is changed along with rotation of the paraboloid collecting lens. When the paraboloid condenser rotates to a vertical state, the sealing part controls the sealing cover plate to be automatically opened, so that accumulated sand and dust are naturally discharged under the action of gravity, continuous accumulation of the sand and dust is avoided, and the cleanness of a mirror surface and the condensation efficiency are kept.

The utility model discloses a handheld laser welding gun, which belongs to the technical field of laser welding and comprises a gun body and a laser channel in the gun body, one end of the laser channel is connected with a gun head, one end of the laser channel is connected with a laser collimation module, and an optical fiber is connected with one end of the laser collimation module; incident light sequentially passes through the laser collimation module, the laser reflecting mirror, the collecting mirror and the gun head. The shell is detachably mounted at the bottom of the gun body; the galvanometer motor is fixed to the gun body and located in the shell. The protective glass is detachably mounted in the gun body; the airflow channel is used for being connected with an air pump to blow air to the gun head and dissipate heat in the welding gun; the control panel is located in the shell; and the button module is embedded on the shell. Compared with an existing laser welding gun with a reflector adjusting function, the handheld laser welding gun has the advantages that the control panel of the motor is integrated into the cavity, and the problem of interference of control signals of the motor can be effectively solved.

The present disclosure relates to an infrared moisture meter with a rapid calibration device and a calibration and automatic calibration method thereof, and belongs to the technical field of moisture detection. The infrared moisture meter with the rapid calibration device comprises a main control unit, a motor, a light source, a chopper, a plano-convex lens, a measurement probe, a punching mirror, a measurement window, a reference probe, a rapid calibration device assembly, a mirror, a reference window, a first condenser, a second condenser and a first quick connector. The rapid calibration device assembly comprises a structural shell, a ventilation hole, a metal container, a heating wire, a weight sensor and a second quick connector. The technical solution of the present disclosure improves the accuracy of equipment detection and the applicability of different materials when the equipment is operated for a long time or the material to be detected is changed. The present disclosure solves the complex problem of on-site calibration of existing infrared online moisture meters, improves the calibration efficiency of the equipment and greatly reduces the maintenance cost of the equipment.

The application discloses a kind of building outer wall window photovoltaic module, it is related to photovoltaic power generation technical field, including window frame, glass plate is installed in the inside of window frame, photovoltaic module is installed in the inside of glass plate, light transmission dynamic adjusting mechanism is arranged in the inside of window frame, light transmission dynamic adjusting mechanism is used to automatically adjust glass plate light transmission to respond solar intensity change, light transmission dynamic adjusting mechanism includes support group installed in the inside of window frame, heat-sensitive pad is installed in the inside of support group, by introducing the cooperation operation between condenser lens, heat-sensitive pad, connecting rod and curved mirror, realize the automatic light transmission based on solar intensity adjustment, according to the angle of automatically adjusting curved mirror according to light intensity, optimize photovoltaic cell to incident light absorption efficiency, by dynamically adjusting light transmission and light refraction angle, not only improve the power generation efficiency of photovoltaic module, also optimize the thermal comfort and energy utilization efficiency of building.

1. The name of the design product: fishing lamp condenser. 2. The use of the design product: condenser for fishing lamp. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of measurement, and discloses a measuring flashlight which comprises a flashlight body, a bulb is installed at the front end of the flashlight body, a first adjusting sleeve is installed outside the flashlight body in a threaded mode, and a first limiting plate is fixedly connected to the top end of the first adjusting sleeve. The first adjusting sleeve is sleeved with a second adjusting sleeve, a second limiting plate is fixedly connected into the second adjusting sleeve, and a limiting clamping sleeve is arranged in the first limiting plate. According to the flashlight for measurement, a convex mirror is installed at the end of a second adjusting sleeve, light rays emitted by a bulb irradiate outwards through a collecting lens, a first limiting plate and an adjusting plate, meanwhile, when the light rays penetrate through the convex mirror, the convex mirror drives the light rays to be refracted, and it is ensured that when the light rays irradiate from the convex mirror, the light rays are emitted in a parallel mode; after the size of the aperture is adjusted, the size of the aperture is not limited by the distance length, and the measuring precision can be improved when the flashlight is used for measuring.

The invention belongs to the technical field of laser processing and manufacturing, and discloses a processing auxiliary device for laser processing and manufacturing and a working method of the processing auxiliary device. The machining auxiliary device for laser machining and manufacturing comprises an ultrasonic transducer, an ultrasonic amplitude-change pole and a condensing lens body. One end of the ultrasonic amplitude-change pole is fixedly connected with an ultrasonic transducer; a lens mounting part is arranged at the other end of the ultrasonic amplitude-change pole, a through hole is formed in the lens mounting part, a mounting groove is formed in the through hole, and a condensing lens body is fixedly arranged in the mounting groove; the ultrasonic amplitude-change pole is used for receiving ultrasonic vibration sound signals in a longitudinal vibration mode output by the ultrasonic transducer, and the ultrasonic vibration sound signals are subjected to amplitude amplification and longitudinal vibration conversion and then drive the condensing lens body to conduct three-dimensional composite vibration. According to the technical scheme disclosed by the invention, the existing problem of heating and abnormal sound is solved, and the breaking risk of the condensing lens is avoided; the amplitude on the condensing lens is effectively increased, and the processing quality and the processing efficiency of laser processing can be improved to a certain extent.

The application belongs to the field of heat dissipation of photovoltaic cells, and particularly relates to a multi-stage heat pipe heat exchange system and heat exchange method of high-multiple light concentration cell group. When the whole system starts to work, the Fresnel mirror located at the upper part focuses the sunlight to the cell group, the cell group converts the light energy into electric energy and stores the electric energy in the storage battery, and the storage battery ensures the operation of the electric heater. The preheated water is first exchanged through the surface of the cell group, the back of the cell group is provided with a heat collecting cavity to collect the high-temperature heat generated by the Fresnel light concentrator to the cell, and the controller controls the multi-stage heat pipe group to exchange heat with the heat collecting cavity through the feedback of the temperature sensor for different heat flow densities; the condensing end of the heat pipe is provided with a heat exchange box, the water after heat exchange is stored in a water storage tank, and the water storage tank is connected with a user end. The device effectively utilizes the sunlight heat energy in multiple aspects, reduces the cost, and has the characteristics of convenient use, high practicality, low energy consumption and the like.

A light-emitting module includes: a support base having a plurality of placement surfaces arranged in a first direction; a plurality of light-emitting devices each disposed on the respective corresponding placement surface, and each including a semiconductor laser element, a first mirror member, a cover, and a second mirror member; a plurality of third mirror members; and a condensing lens. The first mirror member changes a traveling direction of a laser beam emitted from the semiconductor laser element. The cover transmits the laser beam having the changed traveling direction. The second mirror member further changes the traveling direction of the laser beam transmitted through the cover to a second direction. Each third mirror member changes the traveling direction of the laser beam from the second direction to the first direction. The condensing lens combines a plurality of laser beams and allows the combined light to be incident on an optical fiber.