30results about How to "Reduce the difficulty of coating" patented technology

The invention discloses a multi-wavelength wave combining optical module, belongs to the technical field of optical fiber communication, and can solve the problems that an existing multi-wavelength wave combining optical module is high in cost and poor in wave combining effect. The optical module comprises a first signal group and a second signal group, and the first signal group and the second signal group respectively comprise multiple paths of optical signals with different wavelengths; the wavelength of the optical signal with the longest wavelength in the first signal group is smaller than that of the optical signal with the shortest wavelength in the second signal group; a first multiplexing unit is used for synthesizing multiple paths of optical signals in the first signal group into a first multiplexing signal; a second multiplexing unit is used for synthesizing multiple paths of optical signals in the second signal group into a second multiplexing signal; a first wave combining prism comprises a first surface and a second surface, and the second surface is used for reflecting a second multiplexing signal to the first surface; the first surface is used for transmitting a first multiplexing signal and reflecting a second multiplexing signal to form a third multiplexing signal. The optical module is used for multi-wavelength wave combination.

The invention discloses polyurethane glue for a protective film. The polyurethane glue is prepared by mixing 30%-60% by weight of a main agent with 30%-60% by weight of a dissolving agent and then adding 5%-20% by weight of a curing agent into the mixture. The glue has the good adhesiveness, good air exhaustion property and excellent weather resistance on plastic thin film substrates such as PET, PE and PC and can significantly improve the product quality of the protective film.

The invention discloses an optical coherence scanning imaging device for the ophthalmology department. The device comprises a light source, a first beam splitting module, a second beam splitting module, a reference arm, a fundus imaging module, a light path processing module, an ophthalmoscope, a detection module and a control system, wherein light emitted by the light source is divided into four paths, the first light path penetrates through the reference arm, the light path processing module and the ophthalmoscope, comes into human eyes with a fundus signal, and performs interference with the third light path returned from the reference arm in the first beam split module to form an interference light; the detection module is used for receiving the interference light and transmitting the interference light to the control system, and the interference light is processed by the control system to obtain an OCT (optical coherence tomography) graph; the fourth light path sequentially penetrates through the fundus imaging module, the light path processing module and the ophthalmoscope, comes into human eyes with the fundus signal, is returned to the fundus imaging module in the same way, and is processed by the fundus imaging module to obtain a fundus image. According to the device, an OCT light path and a fundus imaging light path can be simultaneously fulfilled by only one light source, and the problem of light path processing module coating difficulty because the OCT light source and the fundus imaging light source having close wavelengths are required can be solved.

The invention discloses a frame glue coating method. Each mother board is provided with a plurality of display areas at intervals in an arrayed mode. The outer side of each display area is coated with a circle of rectangular frame glue surrounding the corresponding display areas. The four corners of each piece of frame glue are circular beads. The adjacent four corners of the two adjacent pieces of frame glue are overlapped in pairs at least in the same row or column. The invention further discloses a frame glue structure and a liquid crystal box. Frame glue coating lines subjected to primary coating cross over the display areas of two adjacent panels, and a frame glue area on one panel is formed in the mode that the frame glue coating line on the panel intersects with the frame glue coating line of the adjacent panel, so that single coating of a single nozzle is large in size, the diameter of the circular beads at the corners can be larger, coating difficulty is reduced, the width of the corners of the frame glue can be consistent with that of other parts, and the occurrence rate of common defects is reduced.

The invention discloses a multichannel wavelength division multiplexer for a free space, and the wavelength division multiplexer comprises a plurality of wavelength division multiplexing filters, a plurality of collimators, and a plurality of prisms. The collimators, the filters and the prisms form wavelength division multiplexing function units. The wavelength division multiplexing function unitsform the multichannel wavelength division multiplexer. The multichannel wavelength division multiplexer is characterized in that the wavelength division multiplexing filters are smaller in incident angle; the filter coating technology is easier to implement through the amplifying of the incident angles of the prisms, and the cost is lower.

The invention relates to a 5G frontward-transmission wavelength division multiplexing module based on an optical fiber array and an assembling method of the 5G forward-transmission wavelength division multiplexing module. The 5G frontward-transmission wavelength division multiplexing module comprises the optical fiber array, a lens, a first wavelength division multiplexing diaphragm, a second wavelength division multiplexing diaphragm and a reflector plate which are sequentially arranged from right to left. The first wavelength division multiplexing diaphragm, the second wavelength division multiplexing diaphragm and the reflector plate are sequentially overlapped, pasted and fixed on the lens, and the lens and the optical fiber array are connected and fixed through glue. The method is characterized in that according to the lens imaging spherical aberration principle of an optical system, the function of multi-wavelength wavelength division multiplexing and demultiplexing is realized by adopting a structure that an optical fiber array, a wavelength division multiplexing diaphragm and a reflector plate are overlapped and pasted on a single lens. Therefore, the 5G forward-transmission wavelength division multiplexing module based on the optical fiber array provided by the invention has the advantages of flexible configuration, very compact structure, ultra-small volume, low cost and the like, is suitable for limited base station space, and is convenient for application of optical modules in a 5G network machine room and a base station.

The invention discloses an automatic coating device. The automatic coating device comprises a transversely arranged coating column core, a drive mechanism for driving rotation of the coating column core, a film feeder connected with the coating column core through a film and rotating along with the coating column core, and a controller electrically connected with the drive mechanism; at least onegroup of smart coating machines are arranged on the front side of the coating column core, each group of smart coating machines comprises a carriage electrically connected with the controller and doing reciprocating motion along the length direction of the coating column core, and a robot arm located on the carriage; a coating brush with an internal-installed spray gun is arranged on the robot arm; the spray gun sprays a desulfurization composite material on the film covering the outer surface of the coating column core and conducts shifting coating on the surface of the film through the coating brush moved along the carriage. The automatic coating device has the advantage of being simple in structure, convenient to use and higher in coating efficiency, and the automatic coating device hasautomatic brushing work of stronger-glutinousness poorer-mobility environment-friendly desulfurization composite material.

A method for manufacturing a wireless charging coil, comprising the steps of: providing a first elastic body and a second elastic body and stretching the first elastic body and the second elastic body; respectively stretching the first elastic body and the second elastic body The first inner layer circuit layer and the second inner layer circuit layer are formed on the upper layer, the first inner layer circuit layer and the second inner layer circuit layer both include a plurality of parallel lines, and the extending direction of the lines of the first inner layer circuit layer The extension direction of the line of the second inner circuit layer is perpendicular to the stretching direction of the first elastic body and the second elastic body respectively; the tension is released to make the stretched first elastic body and the second elastic body retract to The original state, thereby forming the first circuit substrate intermediate body and the second circuit substrate intermediate body respectively; pressing the first circuit substrate intermediate body and the second circuit substrate intermediate body, the extending direction of the circuit of the first inner layer circuit layer and the second The extending directions of the lines in the inner line layer are perpendicular to each other. The invention also provides a wireless charging coil.

The invention discloses a power amplifier sound box with a long service life. The box comprises a sound box base body, and a groove is formed in the middle of the bottom end of the sound box base body; a rectangular plate is adhered to the middle part of the interior of the groove; a protective plate is adhered to the middle part of the bottom end of the rectangular plate; a limiting groove is formed in the middle of the bottom end of the protective plate; a rubber pad is adhered to the middle part of the inner wall of the limiting groove; and the top end of the protective plate is provided with a rectangular groove corresponding to the edge of the bottom end of the sound box base body. The structure is scientific and reasonable, safe and convenient use, the sound box comprises the sound box base body, the groove, the rectangular plate, the protective plate, the limiting groove, the rubber pad and the rectangular groove. According to the invention, the friction force between the soundbox base body and the plane can be increased, the sound box base body is prevented from sliding on the plane, the bottom of the sound box base body is protected, and the direct collision between the bottom of the sound box and an object is prevented, so that the sound box base body is protected, and the service life of the sound box base body is prolonged.

The invention discloses an optical cable sheath metal belt and a preparation method and application thereof. The optical cable sheath metal belt comprises a metal base belt and at least two water-blocking factice lines arranged on the metal base belt, and the water-blocking factice lines are mutually staggered to form a plurality of water-blocking cavities. During preparation, water-blocking factice is continuously coated on the metal base belt in a line spraying mode to form at least two continuous and mutually staggered water-blocking factice lines, and the optical cable sheath metal belt is obtained. According to the invention, the water-blocking factice is coated on the metal belt in a line form, so that the coating process is simplified, the use amount of the water-blocking factice can be greatly reduced, and the production cost is reduced. A plurality of line-shaped water-blocking factice lines are coated, the water-blocking factice lines are mutually staggered to form the continuous water-blocking cavities which are arranged according to a specific rule, and after the optical cable is coated, formed water-blocking stripes are uniformly and continuously distributed according to the specific rule, so that the water-blocking effect is excellent; and the use amount of the water-blocking factice is reduced, and a good water-blocking effect can also be generated at the same time.

The invention discloses a preparation method of a hydrophilic polyolefin diaphragm for a lithium ion battery, the preparation method is characterized in that polyolefin and zirconium dioxide (ZrO2) powder are taken as raw materials, the hydrophilic polyolefin diaphragm is prepared by adopting a wet method after the two raw materials are uniformly mixed, and the mass of the ZrO2 powder accounts for 1-6% of the mass of the polyolefin. The preparation method is simple in process and saves cost, the surface free energy of the obtained polyolefin diaphragm is greatly improved, the hydrophilicity is strong, the contact angle of water in the diaphragm is 65-88 degrees, the surface tension of the diaphragm can be improved to 45-50 mN/m, the coating difficulty of water-based slurry on the diaphragm is remarkably reduced, the addition of a wetting agent in the slurry can be directly omitted, and the production cost is reduced. And the diaphragm also maintains relatively good air permeability.

The invention relates to a secondary optical path focusing structure in a receiving module of a laser radar ranging system, comprising a primary focusing optical module and a photoelectric detection module, further comprising: a primary focusing diaphragm adjustment module and a secondary focusing optical module, wherein the primary focusing diaphragm adjustment module is arranged at a focusing position of the primary focusing optical module and the secondary focusing optical module is arranged between the primary focusing diaphragm adjustment module and the photoelectric detection module; the primary focusing diaphragm adjustment module comprises a diaphragm and a three-dimensional adjusting and fixing mechanism which is used for adjusting the diaphragm at XYZ three-direction positions of a vertical optical axis and a parallel optical axis and fixing the diaphragm on the adjusted position; the secondary focusing optical module comprises a collimation lens group, a converging lens group and a mounting bracket, wherein the collimation lens group is used for collimating the light focused by the primary focusing optical module into parallel light or approximate parallel light; the converging lens group is used for converging the parallel light or approximate parallel light collimated by the collimation lens group to the photoelectric detection module; and the mounting bracket is used for mounting the collimation lens group and the converging lens group. The structure is not only easy for processing, but also simple and convenient for adjusting.