13results about How to "Uniform light intensity" patented technology

The invention provides a panoramic on-site material evidence investigation lamp and a lens processing method, the panoramic on-site material evidence investigation lamp comprises a plurality of LED strip light sources and a lens, the lens is in a hollow ellipsoid shape, a center line is arranged in the height direction of the lens, a mounting hole is formed in the center of the lens, and the mounting hole extends in the length direction of the center line; a cylindrical connecting piece is connected in the mounting hole, and the LED strip light sources are arranged on the outer side of the cylindrical connecting piece in an annular array mode to form a cylindrical light source. According to the panoramic physical evidence investigation lamp, 360-degree panoramic illumination can be achieved, the brightness is effectively improved, the irradiation range and brightness of light beams can be adjusted through the remote control module, limitation of the illumination range during investigation of investigation personnel is reduced, damage and omission of on-site physical evidences caused by the fact that the field of view of the investigation personnel is limited are avoided, and the investigation efficiency is improved. And the footprint scene investigation efficiency and quality are improved. The size and the weight of the exploration lamp can be reduced, use and carrying are convenient, meanwhile, the manufacturing cost is effectively reduced, and first-line application and popularization are facilitated.

This disclosure relates to the field of underwater optical imaging technology, specifically providing an underwater microscopic observation instrument, including a light source chamber and an imaging chamber connected by a focusing mount. The imaging chamber contains an imaging unit for imaging underwater targets between the light source chamber and the imaging chamber. The light source chamber includes a first housing, optical components, and a driving mechanism. The optical components include a laser and a dimming assembly. The laser outputs a pulsed laser beam. The dimming assembly includes a reflector, a conical mirror, and a lens arranged sequentially along the optical axis of the pulsed laser beam. The conical reflector of the mirror reflects the pulsed laser beam, forming a first reflected beam. The first reflected beam is reflected by the inner surface of the reflector to form a conical second reflected beam, which passes through the lens and converges on the optical axis to form an illumination layer. The driving mechanism is used to adjust the position and thickness of the illumination layer to improve the clarity of the underwater imaging of the target by the imaging chamber.

A solar greenhouse for mechanized cultivation of vegetables, relating to the technical field of vegetable cultivation, comprises a sunken cultivation bed, a front roof and a rear wall, the top of the rear wall is inclined with a rear slope, the cultivation bed is provided with cultivation ridges along the east-west direction, and a steel wire for hanging vines is provided directly above each cultivation ridge; the angle A between the virtual line between the upper edge of the rear slope and the upper edge of the front elevation of the cultivation bed and the ground plane is ‑10.5°, the geographical latitude of the greenhouse. The present invention solves the problem that the east-west cultivation ridges in the traditional technology, due to the obstruction between the canopies, will cause uneven light distribution within and between the ridges, uneven light distribution on the leaves of the plants on the north and south sides of the same ridge, and the light intensity on the north side is generally weaker than that on the south side; and the light distribution between different ridges is uneven, and the light intensity on the north ridge is weaker.

The invention discloses a phototherapy device and a preparation method thereof. The phototherapy device comprises at least two flexible OLED light-emitting panels, a shell and a driving device. The shell is directly or indirectly manufactured through 3D printing according to three-dimensional digital information of a body part to be used; the at least two flexible OLED light-emitting panels can emit light with two peak wavelengths; the driving device provides direct current for the flexible OLED light-emitting panel. The shell of the phototherapy device can be perfectly attached to the body part to be used, and the phototherapy device is light, thin, fit, comfortable to wear, not prone to light leakage and capable of fully utilizing the light emitting efficiency; the OLED light-emitting panel can emit two kinds of light, and the dual treatment effect is achieved; direct-current power supply is lower in power consumption, higher in efficiency, better in treatment effect and convenient to operate. In addition, the invention also discloses a preparation method of the phototherapy device.

The present invention provides a second harmonic characterization optical system and a detection device based on second harmonic characterization. The second harmonic characterization optical system adds a beam shaping module on the optical path between the polarizer and the first objective lens, shapes the polarized fundamental frequency light of the Gaussian beam into the polarized fundamental frequency light of the flat-top beam, and then focuses it into the fundamental frequency light that meets the test requirements through the first objective lens, and then incidents the fundamental frequency light to the sample to be detected. Compared with the method in the prior art in which the fundamental frequency light incident on the surface of the wafer is a Gaussian beam, the present application makes the light intensity inside the spot of the fundamental frequency light incident on the surface of the sample to be detected uniform, so that the second harmonic signal can be uniformly generated inside the spot, thereby improving the accuracy of the second harmonic characterization of the defects of the sample to be detected.

The present invention discloses a high-precision photodynamic therapy device. The photodynamic therapy device includes a laser irradiator, which includes: a housing. An irradiation light source, which is arranged in the housing, and the irradiation light source can generate a therapeutic light with a first wavelength to irradiate the surface to be irradiated. A plurality of ranging light sources, which are arranged in the housing, and the plurality of ranging light sources can generate a plurality of ranging light with a second wavelength, and the plurality of ranging light can converge into a laser spot on the surface to be irradiated at a preset irradiation distance. A plurality of positioning light sources, which are arranged in the housing, and the plurality of positioning light sources can generate a plurality of positioning light with a third wavelength, and the plurality of positioning light can generate a plurality of straight line projections on the surface to be irradiated, and the plurality of straight line projections intersect at least two by two to form an irradiation area. Among them, the plurality of positioning light sources are arranged along the edge of the irradiation light source. The present invention can keep the distance between the surface to be irradiated and the laser irradiator correct and stable.

This invention discloses a solar panel and photovoltaic system. By setting a light-diffusing module between the light-receiving panel and the light source, and the light-diffusing unit in the light-diffusing module can transmit light from the light source and form diffused light on the light-receiving panel with an illumination area greater than the area occupied by a power generation unit, during daily use, obstructions will fall on the light-diffusing module instead of the light-receiving panel. Even if some light-diffusing units are blocked or the sunlight is uneven, the illumination area on the light-receiving panel formed by the unblocked light-diffusing units is greater than the area occupied by a power generation unit. Therefore, it can ensure that the light intensity of different power generation units is relatively uniform. This effectively avoids the problem of some power generation units overheating due to high internal resistance when the operating current is high. This effectively improves the service life of the solar panel and extends the maintenance interval of the solar panel.

The utility model relates to UV point gum machine technical field discloses a kind of UV photocuring assemblies for LED lamp point gum, multidirectional adjusting assembly includes connecting table, connecting table is fixedly connected in the top of support frame, and working motor is fixedly connected on connecting table, and the output end of working motor is connected with connecting screw rod, and the surface of connecting screw rod is connected with moving seat with screw thread, and the lower fixed connection of moving seat has moving table, and the lower sliding connection of moving table has moving frame, and moving frame is installed in the top of connecting table.The utility model is driven ultraviolet lamp to surround distribution with 120 degrees interval by three groups of sub planetary gears, and the rotation and revolution compound motion of combining planetary gear, so that LED lamp point gum area receives 360 degrees three-dimensional ultraviolet light irradiation, eliminates the irradiation blind area of traditional fixed light source.The constant speed characteristics of gear drive ensure that illumination intensity is uniform, avoid that colloid local solidification is not completely or overcuring, significantly improve product yield.

The invention discloses an artificial turf weather resistance detection device, and relates to the technical field of weather resistance detection devices.The artificial turf weather resistance detection device comprises a detection cabinet, a cabinet door, a placement table, a sliding frame and an ultraviolet lamp, the cabinet door is rotationally installed on the inner wall of the detection cabinet, the placement table is slidably installed at the bottom of the inner wall of the detection cabinet, and the sliding frame is slidably installed on the inner wall of the detection cabinet; the weather resistance detection device comprises a movable device which is used for enabling the lawn to be conveniently taken out and put in, the movable device is arranged on the inner wall of the detection cabinet, the edge of the lawn is pressed through automatic rotation of a pressing block, meanwhile, a movable plate sinks, and the surface of the lawn is lowered to the position flush with or slightly lower than the edge of the placement table; the sample is prevented from warping and shifting due to thermal expansion, airflow or vibration in a test, the device moves reversely when the device is opened, the movable plate can stably support the sample, and the lawn can be conveniently taken out.

The utility model provides a photovoltaic assembly appearance inspection light assembly, which comprises an inspection bench and two vertical lamp holders, the center of the rear part of the bench surface of the inspection bench is provided with an overturning mechanism used for overturning a photovoltaic assembly by 90 degrees, and the two vertical lamp holders are erected on the two sides of the front part of the bench surface of the inspection bench. Each vertical lamp bracket comprises a driving motor, a rotating lamp holder mounted on the inspection table and a lamp tube assembly vertically mounted on the rotating lamp holder, a rotating shaft of the rotating lamp holder is vertically arranged, the driving motor drives the rotating lamp holder to rotate, a plurality of vertical shading strips are arranged on the lamp tube assembly at equal intervals, and the vertical shading strips are arranged on the inspection table. And the light intermittently scans a to-be-inspected area above the inspection bench. The photovoltaic module appearance inspection lamplight assembly has the advantages of being scientific in design, free of dead angle of lamplight irradiation, convenient to observe and high in practicability.

The present invention relates to the technical field of optical metrology equipment, and discloses a detection device for detecting the geometric morphology of a wafer, comprising a support frame, a circular guide rail is arranged at the top of the support frame; a detection lens, a groove for sliding the detection lens is opened on the inner side of the circular guide rail, and the detection lens slides along the groove as a track to measure different angles of the wafer, thereby reducing optical interference in blind areas; and two light source rings are symmetrically arranged on the inner wall of the circular guide rail with the groove as the center. The invention sets the detection lens inside the circular guide rail, and the detection lens can slide inside the groove, and the circular guide rail can rotate at multiple angles, so that the purpose of detecting blind areas can be reduced by measuring from different angles, and the data of multiple perspectives can be combined to obtain a complete morphology. At the same time, the light source and the detection lens of the present invention are placed on the same straight line, thereby reducing shadows and reflections, providing a light source with uniform light intensity, and reducing the intensity difference between the center and the edge.

The utility model discloses a microalgae culture shelf which comprises four stand columns, three placing plates are welded among the four stand columns from top to bottom at equal intervals, and a lifting adjusting mechanism is installed in the middle of the upper end of each placing plate. The microalgae culture frame has the beneficial effects that the lifting adjusting mechanism is mounted on the placing plate, so that the bidirectional screw rod can be rotated by virtue of a hand wheel in the lifting adjusting mechanism when the microalgae culture frame is used, and the lifting plate can be lifted under the action of the bidirectional screw rod and a connecting rod; by means of the design, when the microalgae culture shelf is used, step-shaped height differences can be formed between the microalgae culture bottles on the inner sides of all the layers of containing plates and the microalgae culture bottles on the edges, it is guaranteed that illumination intensity borne by microalgae in all the rows of microalgae culture bottles is uniform, and meanwhile workers can conveniently observe the growth conditions of all the rows of microalgae conveniently.

The present invention belongs to the technical field of optical elements, and specifically relates to an aspheric lens for collimating flat tops of square-in-circle LED surface light sources, which can shape the LED outgoing light beam with a wavelength of 0.85 μm and a divergence angle within ±40° and a Lambertian distribution of light intensity from the light-emitting surface into a collimated flat top beam with a divergence angle within ±2° at the observation surface after passing through the aspheric lens; the shape of the light-emitting surface is square-in-circle, and its circular area does not emit light, the side length of the light-emitting surface is 200 μm×200 μm, and the diameter of the circular area is 90 μm. The front surface of the aspheric lens is a plane, and the rear surface is an aspheric surface, and its surface shape is represented by an even-order aspheric surface equation with a highest order of 8. The present invention can efficiently shape the Lambertian beam emitted from the LED light-emitting surface into a collimated flat top beam, which can significantly improve the working efficiency and accuracy of the optical system.