33results about How to "No shadows" patented technology

The invention relates to a novel orthopedics restoration device, comprising a bracket used for maintaining the bent-knee position of a suffered limb. The bracket comprises a panel, a substrate and a regulating element for regulating the included angle between the panel and the substrate, and the panel is thereon provided with a traction restoration module which is used for providing immediate traction and location of axial movement and circumferential movement of the limb. On the basis of stabilizing and supporting the suffered limb, the invention realizes the immediate traction of the limb along the axial direction and the circumferential direction and the restoration of the fracture caused by trauma of external force from a plurality of angles. The immediate traction along the circumferential direction solves the problems that precise restoration of the suffered limb can not be realized only by the traction along axial direction, the assistance of force applied by a doctor is required, the maintaining of stability is difficult and traction restoration is inaccurate, thus facilitating the precise restoration of the suffered limb and being convenient for operation.

The invention discloses a feed-forward type microwave antenna, which comprises a radiation source, a first metamaterial panel, a second metamaterial panel and a reflection panel, wherein the first metamaterial panel and the second metamaterial panel are used for diffusing electromagnetic waves emitted by the radiation source; and the reflection panel is stuck at the back of the second metamaterial panel. After being diffused through the first metamaterial panel, the electromagnetic waves enter the second metamaterial panel to be refracted. After being reflected by the reflection panel, the electromagnetic waves enter the second metamaterial panel again to be refracted and finally exit in parallel. The antenna is manufactured by adopting a metamaterial principle; therefore, the antenna is free from limitation of the conventional shapes of a convex shape, a concave lens shape and a parabolic shape; by adopting the antenna disclosed by the invention, the shape of the antenna is planar orin any shape; furthermore, the antenna is thinner in thickness, smaller in volume and more convenient to process and manufacture; and the antenna has the benefits of being low in cost and good in gain effect.

The invention provides a large power LED lens which has averaged facula uniformity, reasonable structure and convenient installation, and can meet the requirement of large power illumination of street lamps. The LED lens has the advantages of beautiful facula, uniform facula, convenient installation and the like. The LED lens comprises an installation base which is provided with a U-shaped concave trough which is concave inwards; the U-shaped concave trough is internally provided with an LED bulb; the upper surface of the U-shaped concave trough is provided with four surfaces sequentially as follows: a first parabola non-sphere, a second parabola non-sphere, a third parabola non-sphere and a fourth parabola non-sphere, wherein, the first parabola non-sphere is symmetric to the second parabola non-sphere, the third parabola non-sphere and the fourth parabola non-sphere; the LED lens is designed according to the concept of rectangular facula on the road surface, utilizes the secondary optical principle to lead the facula to be uniformly distributed on the four surfaces of the LED lens, has the advantages of uniform facula illumination on the road surface and reasonable distribution of light beam, reduces the ineffective loss of the light beam, and has low price, convenient installation and generalization significance.

The invention provides black writing liquid suitable for being written on a matt board and an erasing agent. The writing liquid comprises the components of acid No.3 green, acid fuchsin, a dispersing agent, a stabilizer, a plasticizer, sodium citrate and distilled water. The erasing agent comprises the components of a reducing agent, a complexing agent, a dispersing agent, an antioxidant, a solidifying agent, sodium carbonate and distilled water. The black writing liquid suitable for being written on the matt board and the erasing agent have simple formulas, easily obtained raw materials and low costs. The writing liquid is prepared by an anaglyphic principle, has the advantages of no toxicity, no odor, no generation of precipitates after the writing liquid is stored for a long time and the like, is smooth to write, is particularly suitable for being written on the teaching matt board. The erasing agent can be used for rapidly erasing writing written by the writing liquid, and no writing liquid shadow exists.

The invention relates to a pair of forceps with LED lamps embedded into the pointed ends. The forceps comprise a forcep body, the LED lamps and a power source. The two LED lamps are embedded into the pointed ends of the forcep body and connected with the power source through wires. The forceps further comprise a switch installed on the inner side face of a forcep rod part. The power source is installed at the tail end of the forcep body, or an independent external power source is adopted. The forceps have the advantages of being simple in structure, easy to manufacture and use, high in illumination performance, free of shadows, low in price and the like.

The invention discloses an LED light diffusion light-uniformizing system for multispectral imaging and a use method of the system. The system comprises a light uniformizing device with a curved surface reflection function; the light uniformizing device is of a hemispherical structure; a through hole is formed in the upper portion of the light uniformizing device; an annular metal sheet connected with the objective lens of an integrated microscope for a laboratory is arranged at the through hole; a PCB curved plate is arranged in the light uniformizing device; multi-wavelength LED light sourcesare evenly arranged on the PCB curved plate; and a control switch used for controlling the LED light sources is arranged at one side of the outer portion of the light uniformizing device. With the LED light diffusion light-uniformizing system for multispectral imaging of the invention adopted, the combined use of a conventional halogen lamp and an optical filter can be replaced. The system has the advantages of long service life and good lighting effect. According to the LED light diffusion light-uniformizing system for multispectral imaging and the use method of the system, LEDs with variouswavelengths are uniformly mixed so as to be used.

The invention relates to a uniform-light illuminating system in a lamp box. The uniform-light illuminating system comprises brackets arranged on the opposite inner walls of a lamp box body, wherein LED (Light-Emitting Diode) lamps which are distributed uniformly and are connected with one another are arranged on the outer side faces, which are parallel to the inner walls of the lamp box body, of the brackets; the LED lamps are connected with an LED driving power supply through a lead. By adopting the uniform-light illuminating system, light rays are distributed uniformly, shadows in the display region of the lamp box body are prevented, and the display effect is enhanced; the conventional large-size illuminating bracket is eliminated, the internal space of the lamp box body is released, and convenience is brought to subsequent maintenance; the LED lamps are taken as illuminating lamps and are arranged in a reasonable manner, so that electric energy is saved by over two times in the illuminating system, and the energy consumption is lowered. The uniform-light illuminating system has the advantages of simple structure, low energy consumption, uniform light rays and good illuminating effect.

The invention discloses an automatic focusing and exposing method. The method comprises the following steps: acquiring flatness data of the surface of a photoresist plate; comparing each numerical value in the flatness data with a set reference value, and when the absolute value of a difference between a certain numerical value in the flatness data and the reference value exceeds a set threshold value and replacing the numerical value with a transition value, or when the absolute value of the difference value between a certain numerical value in the flatness data and the reference value does not exceed the set threshold value, reserving the numerical value; and exposing the photoresist plate according to the new flatness data obtained in the previous step. According to the method, the overall exposure effect of an exposure machine can be improved, exposure is more uniform, dark marks cannot be generated, and therefore, the yield of exposure conducted through the photoresist plate is increased.

The invention discloses a reversed-type semi-transparent mirror reflector, which comprises an acryl plate, a plurality of circuit boards, a reflector plate and a semi-transparent mirror, wherein the acryl plate is a plate capable of dispersing light, a plurality of holding grooves are formed on one face of the acryl plate, a base is arranged at the bottom of each holding groove, the circuit boards are arranged in the bases in the holding grooves, and a plurality of light emitting modules are arranged on the surface of the circuit boards; and the reflector plate covers one opening face of the acryl plate, which is provided with the holding grooves, is used for reflecting light of the light emitting module, the semi-transparent mirror is combined on the other surface of the acryl plate, and the semi-transparent mirror has a semi-reflecting coating. The reversed-type semi-transparent mirror reflector disclosed by the invention can provide a uniform light sources and reflect images at the same time.

The invention discloses a frame-free ultra-thin LED panel lamp. The frame-free ultra-thin LED panel lamp comprises strip-shaped light sources and a planar light guide plate used for being connected with and supporting the strip-shaped light sources. The frame-free ultra-thin LED panel lamp is characterized in that a plurality of strip-shaped light source mounting grooves are formed in the planar light guide plate in a carved mode, the strip-shaped light sources are sealed and mounted in the strip-shaped light source mounting grooves, a groove used for mounting a strip-shaped light source powersupply wire is formed between the mounting grooves, a wire penetrating hole communicating with the back surface of the planar light guide plate is formed in the groove, magnetic parts are mounted atthe diagonal positions of the back surface of the planar light guide plate, mounting seats which are used for being absorbed by the magnetic parts are arranged on a ceiling correspondingly, the designof an edge frame is omitted, the product thickness is greatly reduced, the material cost of the LED panel lamp is also greatly reduced, and meanwhile, the packaging and transportation costs of the frame-free ultra-thin LED panel lamp are also significantly reduced.

The invention discloses an acryl backplate type illuminating reflector, which comprises a metal backplate, a plurality of circuit boards, a diffusion plate and a semi-transparent lens, wherein the acryl backplate is a plate capable of diffusing light, a plurality of holding grooves are formed on one surface of the acryl plate, a base is arranged at the bottom of each holding groove, and a reflection surface is formed on the back face of the acryl backplate; the circuit boards are arranged in the bases in the holding grooves, and a plurality of light emitting modules are arranged on the surfaces of the circuit boards; the diffusion plate is a plate which is transparent, but cannot be perspective completely, and the back face of the diffusion plate is attached to the acryl backplate; and the back face of the semi-transparent mirror is provided with a semi-reflection coating, and the semi-reflective coating is attached to the front surface of the diffusion layer. The semi-transparent mirror type self-lighting reflector disclosed by the invention is capable of providing a uniform lighting source and reflecting an image at the same time.

The present invention provides a blackboard lamp. The lamp comprises an optical lens, a light emitting source, an adjustable support, a lamp tile, a bottom shell and a controller, the light emitting source is arranged on the adjustable support, and the adjustable support can adjust the light emitting angle of the light emitting source; the adjustable bracket with the light emitting source is arranged on the lamp tile; the lamp tile is arranged in the bottom shell; the controller is electrically connected with the light emitting source and arranged in the bottom shell. The optical lens is connected with the bottom shell. By arranging the adjustable support, the height of the light emitting source can be adjusted, and by means of the searchlight principle, illumination of the blackboard lampis more evenly focused; the light source of the shadowless lamp is adopted, so that shadows do not appear in a place illuminated by the blackboard lamp, and the effect of protecting eyes is achieved;the optical lens is adopted, so that light transmitted from the optical lens is free of glare, the effect that illumination is more uniform and softer is achieved, and the effect of protecting eyes is achieved.

The invention discloses a fast moving target detection device. The device comprises an infrared high-definition camera, a video image processing module, a WiFi module and an external memory. Video image information of a moving target is collected in real time through the infrared high-definition camera, real-time analysis processing is carried out through the video image processing module, data is transmitted to a wireless network through the WiFi module and then is sent to a server of a related management terminal, and the functions of data collection, processing, remote transmission and the like of the fast moving target are achieved. The whole device is high in real-time performance of a detection result of a fast moving target, and more reliable and accurate detection data can be provided for a management terminal.

The invention relates to a writing board cleaning and maintaining solution and a preparation method thereof, and belongs to the technical field of environment-friendly dust-free blackboards. The writing board cleaning and maintaining solution is prepared from the following components in percentage by mass: 1.5-6 percent of a fading dispersing agent, 0.02-0.07 percent of sodium sulfite, 0.02-1.5 percent of glucose, 0.03-0.9 percent of sodium thiosulfate, 0.02-0.06 percent of sodium borohydride, 0.25-0.6 percent of sodium carbonate, 0.01-0.15 percent of sodium bicarbonate, 0.03-0.05 percent of a complexing agent EDTA, and the balance of distilled water. The preparation method comprises the following steps: grinding solid substances: namely grinding the fading dispersing agent, sodium sulfite serving as a reducing agent, glucose, sodium thiosulfate, sodium borohydride, sodium carbonate and sodium bicarbonate, and screening through a 100-mesh screen; and preparing a finished product, namely sequentially dissolving the fading dispersing agent, sodium sulfite, glucose, sodium thiosulfate, sodium borohydride, sodium carbonate and sodium bicarbonate in distilled water under a stirring condition, adding the complexing agent EDTA, and stirring. The preparation method has the advantages of simple process and convenience in operation, and the writing board cleaning and maintaining solution has the advantages of stable product, no toxicity or odor, strong weather resistance, no writing liquid shadow, and the like.

The invention provides a camera system control method and device and a camera device. A camera system comprises a lens unit, a photoelectric conversion unit, a light source unit and a switch unit, wherein the photoelectric conversion unit is located on one side of the lens unit; the light source unit is located on the side, away from the photoelectric conversion unit, of the lens unit; the emergent light of the lens unit enters the photoelectric conversion unit; and the switch unit is electrically connected with the light source unit and used for controlling the light source unit to work. Thecontrol method comprises the steps that before the photoelectric conversion unit is controlled to work, the switch unit is controlled to be turned on to turn on the light source unit; when the photoelectric conversion unit is controlled to work for a first preset time period, the switch unit is controlled to be turned off; after the photoelectric conversion unit is controlled to continue to work for a second preset time period, the photoelectric conversion unit is controlled to stop working, wherein the starting time of the switch unit is shorter than the working time of the photoelectric conversion unit. According to the method, the problem that information on a manuscript is overlapped along with movement of the manuscript in the prior art is solved.

The invention discloses a reverse type self-luminous reflecting mirror, which comprises an acryl plate, a plurality of circuit boards and a light reflecting sheet, wherein the acryl plate is a plate sheet capable of scattering light rays; a plurality of containing grooves are formed on one surface of the acryl plate; the bottom of each containing groove is provided with a base; the circuit boards are laid in the bases of the containing grooves; a plurality of light emitting components are arranged on the surfaces of the circuit boards; the light reflecting sheet is covered on the surface of the acryl plate, which is provided with containing groove openings, and reflects light rays of the light emitting components; and the surface of the other surface of the acryl plate is provided with a semi-light-reflecting coating. By adopting the reverse type self-luminous reflecting mirror disclosed by the invention, an even lighting source can be provided and images also can be reflected.

The invention discloses a rock-soil body disintegration test device and analysis method, and belongs to the field of analysis and test. The rock-soil body disintegration test devicecomprises a base and an open container used for containing a rock-soil body sample, and the inner diameter of the bottom of the open container is less than or equal to the inner diameter of any cross section of the wallof the open container; the test device further comprises an illumination light box used for coveringthe open container, the illumination light box comprises a side wall and a top wall, a window is opened in the top wall,and the cross section of the rock-soil body in the open container can be observed through the window; and an opening used for entering and exiting of the open container is formedin the side wall. The rock-soil body disintegration test device is used for analyzing the disintegration performance parameters of the rock-soil body,the ratio of ahorizontal projected area St of therock-soil body at a certain moment andahorizontal projected area S0 of the rock-soil body at the initial time of a disintegration test is taken as arock-soil body disintegrationindex at a specific moment, and the disintegration characteristics of a soil body can be effectively characterized and evaluated by using the disintegration index.