42results about How to "Improve pattern quality" patented technology

The invention provides a laser projection device and a depth camera thereof. The laser projection device comprises a VCSEL array, a micro-lens array, a main lens and a pattern generation optical element. Micro-lens units receive and focus light beams emitted by corresponding VCSEL units. The main lens carries out secondary focusing imaging on the light beams of the micro-lens array. Through a secondary imaging optical path consisting of the micro-lens array and the main lens, quite low magnification times is achieved, so imaging quality of a laser projection module is improved and the laser projection device is quite small in size. In addition, according to the difference application scene requirements, the distance between the micro-lens array and the main lens can be adjusted in the installation to increase or decrease the magnification times, thereby satisfying the size of required spot patterns at a long distance or a small distance.

A pattern forming method includes: a modification treatment step of, in accordance with a pattern to be formed on a pattern forming surface of a base body, applying a light beam having a width smaller than a diameter of each of dots to constitute the pattern, onto a treatment target region including at least outer edges on both sides in a width direction of a region where the pattern is to be formed in the pattern forming surface, thereby carrying out modification treatment on the treatment target region; and a droplet deposition step of ejecting and depositing droplets of a functional liquid by an inkjet method onto the region where the pattern is to be formed including the treatment target region where the modification treatment has been carried out.

The invention discloses a groove-assisted double-step ring core optical fiber. The groove-assisted double-step ring core optical fiber comprises a ring core and an outer cladding; the ring core sequentially comprises a central cladding, a second-layer step ring, a first-layer step ring and an annular groove from inside to outside; refractive indexes of the first-layer step ring core and the second-layer step ring core are distributed in a double-step ring core shape; the first-layer step ring core is used for controlling optical fiber normalization frequency so as to regulate and control the number of modes; the second-layer step ring core is used for increasing the effective area of the modes so as to reduce the nonlinear coefficient of each mode of the optical fiber and suppress a radialhigh-order mode; and the double-layer step structure is used for mode regulation and control with higher degree of freedom. The optical fiber can support eight-order OAM modules, the effective refractive index difference between the modules is larger than 10<-4>, and module weak coupling transmission can be adopted. Four modes in the modules are in a degenerate state, and a fixed 4*4-scale MIMO algorithm can be used. OAM modes supported by the optical fiber are all radial first-order modes.

The invention discloses an automatic weft finding device for a rapier loom. The automatic weft finding device comprises a weft sensor, a warp let-off mechanism, a reeling mechanism, a fluffing mechanism, an opening mechanism and a controller. The warp let-off mechanism, the reeling mechanism, the fluffing mechanism and the opening mechanism are provided with four variable frequency motors, respectively. The input end of the controller is connected with the weft sensor. The output end of the controller is connected with the four variable frequency motors; the controller is further connected with a stack storage. The invention further discloses an automatic weft finding method for the rapier loom. If weft breakage occurs, weft finding is performed at low equipment speed through a reversing program. The automatic weft finding device and method has the advantages that the defects of the prior art can be overcome, the structure of the rapier loom is simplified, and failure rate is reduced.

The invention discloses a pretreatment inkjet ink for digital printing. The pretreatment inkjet ink is prepared from the following components by weight percentage: 20-40% of white color paste, 2.0-20%of a color improver, 10-35.0% of a viscosity regulator, 0.1-5.0% of a surface tension control agent, 0.1-1% of a bactericide and the balance deionized water. Specifically, the white color paste is prepared by high speed grinding of the following components by weight percentage: 2-30% of a white color developing agent, 1.0-10% of a dispersing agent, 0.1-1.0% of a defoaming agent, 0.1-3.0% of a pHcontrol agent and the balance deionized water. In addition, the invention also discloses a preparation method of the pretreatment inkjet ink, and the method includes the steps of: adding deionized water, the color improver, the viscosity regulator, the surface tension control agent and the bactericide sequentially into the white color paste under a stirring state, performing stirring until all thecomponents are uniformly mixed, and then conducting filtering. The pretreatment inkjet ink is printed on a printing medium before printing with digital printing ink, so that the color and covering power of a printed pattern can be obviously improved.

The invention discloses a pattern exerting device (1) and method of narrow side (2') of board-shaped workpiece (2) through wood, which comprises the following parts: static printing unit (10), which possesses multiple static ink-injecting heads (12) with multiple sprayers (14); transmitting device (20), which transmits workpiece (2) to printing unit (10); detecting devices (30, 32) on the upstream of printing unit, which detect narrow side (2') and or position and or transmitting speed of workpiece (2) on the transmitting device (20); reserving device (40), which stores image data of narrow side (2'); control device (50), which interconnects printing head (12), detecting devices (30, 32) and reserving device (40) to spray ink from sprayer (14) in the printing region (D), wherein the height of printing region equals the height of pattern narrow side (2') relatively.

A customer illumination aperture (CIA) structure for lithographic exposure is disclosed, including a central part and at least one off-axis part around the central part. The off-axis part of the CIA is disposed in a symmetric manner with respect to the central part.

The invention relates to a device for generating a fourth harmonic light beam. The system comprises an active laser medium in an optical cavity, and a second harmonic generator for generating a secondharmonic frequency of fundamental frequency light directly generated by the laser medium. The fundamental wave light beam is guided to the second harmonic generation crystal, wherein one part of fundamental wave light beams are converted into second harmonic light beams; before the second harmonic light beam is converted into the higher harmonic light beam, the second harmonic wave and the unconverted fundamental wave light beam are reflected back to the second harmonic wave generator by a reflecting surface and pass through the second harmonic wave generator again; an independent reflectingsurface can also be used for reflecting an unconverted fundamental wave light beam and a second harmonic light beam respectively; and the unconverted second harmonic light beam can be guided into a laser medium to serve as an additional pump, and almost all ultraviolet light beams with the wavelength exceeding 99% or even more can be output from a laser cavity. The laser of the invention has significantly improved conversion efficiency and improved mode quality.

The present invention relates to the technical field of display by a touch screen, and particularly relates to a conductive bridging method, a bridging structure, a touch panel and a touch control display apparatus. The conductive bridging method comprises: sequentially forming an insulating layer and a self-assembled-monolayer on the base substrate provided with first electrode lines and second electrode lines which mutually intersect; forming via holes penetrating through the insulating layer and the self-assembled-monolayer; removing the self-assembled-monolayer between two adjacent via holes close to a same first electrode line; and forming a conductive film in the via holes and in a region between two adjacent via holes. In this way, a bridging connection is achieved with the help of the electrical conductivity of the conductive film.

The invention relates to a fabrication apparatus for fabricating a patterned layer (18) on a substrate (14). Protective material (17) is applied in second regions on the substrate (14) and liquid layer material (18) is then printed in first regions being different to the second regions on the substrate (14). The layer material (18) is dried by heating the layer material (18) to a drying temperature being smaller than a melting temperature of the protective material (17), before removing the protective material (17) from the substrate (14) by using a removing temperature being larger than the melting temperature of the protective material (17). A patterned layer (18) can therefore be produced, without using, for example, a costly photolithography process, and because of the use of the protective material (17) the layer material (18) is present in the desired first regions only and not in the second regions. This improves the quality of the patterned layer, which may be used for producing an OLED.

The invention discloses a method of on-site color printing on a digital accessory and a device. The method comprises: scanning a two-dimensional code to enter a customization page; selecting a model of the digital accessory of color printing, and giving a customization range frame; selecting a pattern in a mobile intelligent terminal, and editing and adjusting the pattern; generating an order, automatically uploading the order to a server through the mobile intelligent terminal, and obtaining an order number; updating order information in real time by a computer printing client, confirming theorder, of which printing needs to be carried out, by a user in the computer printing client; preparing a film of a corresponding model and the digital accessory by the user; putting the film into a printer by the user, receiving the order information by the printer, and carrying out printing; and using a heater by the user to solidify ink of a surface of the film, then removing a printed patternrange portion of the film along a die-cut line of an edge, and attaching the same in a groove of the corresponding digital accessory to complete color printing on the digital accessory. According to the method, a data processing and transmission process is relatively convenient, a printing process is relatively simple, and pattern quality is better.

In a method for fabricating an organic electroluminescent display, a first electrode layer is formed on a transparent substrate, and a hole transport layer is formed on the first electrode layer. After an organic luminescent layer is formed on the hole transport layer by scanning a donor film disposed on the substrate using a laser beam, the donor film is removed and then a second electrode is formed on the organic luminescent layer. The laser beam dithers while performing the scanning operation to make the energy distribution uniform.

The invention discloses a coating material register hot-pressing production device, comprising a controller, a winding roller, a hot press, a first visual detection device, a second visual detection device, a first clamping component, a second clamping component, a first loosing component, a second loosing component and a plurality of unwinding rollers, wherein the plurality of unwinding rollers,the first loosing component, the first clamping component, the first visual detection device, the hot press, the second visual detection device, the second clamping component, the second loosing component and the winding roller are arranged in a production line way from front to back, and are separately connected with a controller in linear way. The coating material register hot-pressing production device guarantees the register accuracy between plane patterns on decorative paper and three-dimensional patterns on a stainless steel template, thus improving the pattern quality and reducing the production of wastes.

The invention discloses an image processing method based on machine learning. The method comprises the following steps: extracting features of a training image to be processed; receiving an image processing method corresponding to the training image features, wherein the training image processing method is obtained through input; modeling by taking the features of the training image as input and taking an image processing method corresponding to the training image as output to obtain an image processing model; receiving a target image input by a user, extracting features of the target image, and inputting the features of the target image into the trained image processing model to obtain an image processing method corresponding to the target image; performing image processing on the targetimage by using an image processing method of the target image; and outputting the pattern after image processing. According to the invention, a user inputs the image, the image processing method of the image is obtained in the image processing model by identifying the characteristics of the image, and finally the extracted pattern is obtained.

The invention discloses red printing ink for wash label printing, which comprises the following components according to mass percent: 0.8% of C.I. acid red 52, 0.7% of C.I. acid red 289, 16-19% of diethylene glycol, 6-9% of triethylene glycol monobutyl ether, 0.4-0.5% of surfactant and the balance of deionized water. The invention further discloses a preparation method of the red printing ink for wash label printing. A pattern printed by the red printing ink prepared by the method is good in quality, unlikely to bleed, free of bur and good in fastness to rubbing, and the pattern has certain light fastness.