129results about How to "High color contrast" patented technology

A color contrast enhancing lens made from adhering two different lenses and a membrane together. It includes a color enhancing lens whose specific component will selectively absorb the yellow light in the visible spectrum, which enhances the user vision by enhancing the distinction between red and green. It also includes an ultraviolet blocking lens whose special compounds will absorb the majority of violet light and a part of blue light. It also includes a light polarization membrane whose special structure can reduce strong light. It can also absorb the majority of violet light and keep a low transmission rate of blue light, thus reduced the retina injury caused by overexposure to blue light. It can also block the invisible ultraviolet and reduce strong light. So while the users' eyes are protected, they can also enjoy their view.

This is a kind of restoring the tracks of the bitumen road surface with the modified emulsified bitumen watery slurry mixed materials and its job practice. Spread single layer modified emulsified bitumen watery slurry mixed materials on the bitumen road surface of 10 - 20 mm depth, and spread double layer modified emulsified bitumen watery slurry mixed materials on the bitumen road surface of 20 - 40 mm depth. The job practice of single layer modified emulsified bitumen watery slurry mixed materials is: close down the traffic, process the original road surface, lay samples, spread, appearance control, joint slots, initial maintenance and quality inspection. Other building steps of the lower layer job practice of the double layer modified emulsified bitumen watery slurry mixed materials are the same as that of single layer, except that the allocated proportion of the single layer modified emulsified bitumen watery slurry mixed materials is different and without quality inspection. The upper layer building steps are: spread, initial maintenance and quality inspection. It has such advantages as high abrading-resistant performance, thin structure layer, long using life, high building speed, fast molding, short building period, fast traffic opening, long building season, low resource waste, no deleterious gas euduction and so on.

The invention provides a manufacture method for PU embossed color-changing decoration leather. According to the method, a layer of polyurethane work slurry prepared by using a wet method is coated onto a spunlaced non-woven fabric, and concrete steps of the method comprise: (a) preparing base cloth and unreeling and ironing the base cloth; (b) coating the polyurethane work slurry changeable at a pressure with a knife, wherein a formula for the work slurry comprises, by mass, 20 to 40 parts of high-modulus resin, 80 to 60 parts of low modulus resin, 90 to 200 parts of a solvent, 15 to 25 parts of a filling material, 3 to 15 parts of color paste, 0 to 4 parts of a microporous regulator, 0.1 to 1 part of an antifoaming agent and 0.1 to 1 part of a leveling agent; (c) carrying out solidification and rinsing; and (d) carrying out drying and reeling, wherein drying temperature is 120 to 155 DEG C. The prepared decoration leather has stiff and smooth touch, smooth surface and neat back; temperature for thermal changes of the decoration leather at a pressure is adjustable and is in a range of 165 to 180 DEG C; time for changes at a pressure is short; and the color of the decoration leather having undergone changes at a pressure is brilliant and full, presenting great contrast.

A head-mounted visual display device for low-vision aid, which features 2 models, they are analog signal model and digital signal model. Said analog device contains at least an analog video extractor, a video decoder, an ITU-R.656 decoder, a de-interlacing unit, an image processor, two YCbCr to RGB converter, two color enhancement units, two video D / A converter, a head mounted display, a signal voltage controller and a wireless communication module. Said digital device consists of a digital video signal extractor / capturer, a RGB to YCbCr converter, an image processor, two YCbCr to RGB converter, two color enforcement units, a head-mounted display, a signal voltage controller and a wireless communication module.

The invention discloses a concave-convex obvious texture solid floor and a manufacturing method thereof. The concave-convex obvious texture solid floor comprises a substrate layer, wherein a pattern layer is deeply rolled on the surface of the substrate by engraving and rolling. The manufacturing method comprises the following steps: (1) material preparation; (2) concave-convex texture treatment; (3) color modifying treatment; (4) drying; (5) base pain rolling coating; (6) drying; (7) slightly sanding; (8) finish paint rolling coating; (9) drying; and (10) sorting and packaging. The manufacturing method is characterized in that: required concave-convex obvious texture patterns are directly rolled at high temperature on various substrates without texture and then color modification and base paint rolling coating are performed; the solid floor has the advantages of wide application, high compression speed, industrial standardization, rich color, diversified texture and the like; the concave-convex obvious texture floor has higher color contrast and three-dimensional sensor, and has higher economic and social values than other floors; and a low-quality wood material is used to produce the high-quality imitation floor, so the quality of the floor is improved, and a large amount of high-quality rare wood can be saved.

This invention provides an electrochromic device which has superior coloration repeat properties, high light transmittance and small thickness. A film is provided comprising a first electrode and second electrode in the same plane, and an electrochromic region and electrolyte region laminated in this plane. The electrochromic region is provided on the second electrode, the electrolyte region is provided on the first electrode, and the boundary between the electrochromic region and electrolyte region lies in the planar direction of the film.

Dual-wall container includes an outer wall that is at least one of at least partially substantially transparent and at least partially substantially translucent, an inner wall adapted to contain a substance, at least one symbol arranged an outer surface of the inner wall, and at least one of a coating of a thermochromatic composition arranged on the outer surface of the inner wall, a thermochromatic composition layer arranged on the outer surface of the inner wall, and a thermochromatic composition arranged on an outer surface of at least the at least one symbol. The thermochromatic composition is structured and arranged to change color when the inner wall experiences or senses a temperature change. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

A device for picture-providing diagnosis of tissue is selectively operated in a picture-providing white light diagnosis mode and a picture providing auto-fluorescence mode. A color camera having red, green, and blue sensors provides a monitor which picture signals. A light source emits fluorescence excitation light and additionally emits so much red light that the red light remitted by the tissue dominates the red fluorescence light in the picture providing auto-fluorescence mode. The signal from the red sensor of the camera is damped so that normal time appears green and pre-malignant and early malignant tissue appears red.

A liquid crystal driving device includes a liquid crystal controller and specific color expansion circuits. The liquid crystal controller generates a liquid crystal drive signal to be supplied to a liquid crystal display panel in response to display data. The specific color expansion circuits generate an image output signal from a low-intensity image input signal corresponding to a specific color by intensifying a gradation using a specified factor. The specific color expansion circuits generate an image output signal from a high-intensity image input signal corresponding to a specific color by intensifying a gradation using another small factor. The image output signal is appropriately intensified by the specific color expansion circuits and is supplied as display data to the liquid crystal controller.

The present invention discloses a preparation method of a conductive and light transmittance perovskite quantum dot thin film. The method comprises the steps of: preparation of a cavity plate with a surface array microstructure; preparation and coating of a hole transport layer; preparation and coating of a quantum dot reaction solution; imprinting of a quantum dot thin film; preparation and coating of an electron transfer layer; surface evaporation processing of the quantum dot thin film; and surface grinding processing of the quantum dot thin film. The preparation method of the conductive and light transmittance perovskite quantum dot thin film employs surface processing such as imprinting and metal evaporation to achieve preparation of the conductive thin film, employs surface grindingto achieve the light transmittance performance of the thin film; and the thin film can be light-transmitted and conductive, and the preparation method is high in efficiency, accurate in precision andlow in manufacturing low and is suitable for large-scale production.

The invention belongs to the field of backlight display, and particularly relates to a light guide plate with a quantum dot diaphragm array and a quantum dot site and application of the light guide plate. In order to solve the problem that an existing display device is very poor in color gamut stability and brightness stability, the light guide plate with the quantum dot diaphragm array and the quantum dot site and application of the light guide plate are provided. At least one quantum dot diaphragm is stuck on the light-in surface of the light guide plate, the quantum dot site is printed on the opposite face of the light-out surface of the light guide plate, and the quantum dot site includes red quantum dots and green quantum dots. The light guide plate is applied to a display device, andthe display device is good in color gamut stability and brightness stability.

The Invention provides a light source, a luminaire and a surgical illumination unit in which two narrow-band light emitters both emit light in a narrow spectral peak having a full-width-half-maximum equal to or smaller than 40 nanometers. Both of the narrow-band light emitters have a different central emission wavelength within a blue color-range, within a green color range or within a red color-range. At least one of the two narrow-band light emitters comprises a luminescent material for generating the narrow spectral peak. The light source is further configured such that a distance between the narrow spectral peaks of the two narrow-band light emitters prevents overlap of the narrow spectral peaks. Due to the individual narrow spectral peaks, a color contrast within one of the color-ranges is significantly enhanced.