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129results about How to "Uniform Image Quality" patented technology

High-speed structure illumination optical microscope system and method based on digital micromirror device

The invention relates to a high-speed structure illumination optical microscope system and a method based on a digital micromirror device. The high-speed structure illumination optical microscope system comprises an illumination light source, a light splitting prism, a structure light generator, a lens, a spectroscope, a microobjective, an objective table, a reflector, a tubular mirror and a charge coupled device (CCD) camera, wherein the light splitting prism is arranged on a light path of the illumination light source, the structure light generator is arranged on a reflection light path of the light splitting prism, the lens is arranged on a transmission light path of the light splitting prism, the spectroscope is arranged on a lens light path, the microobjective and the objective table are arranged on a light path above the tubular mirror, the reflector and the tubular mirror are arranged on a light path under the spectroscope, and the CCD camera is arranged behind the tubular mirror. The system and the method aim at the technical problems of low optical energy utilization rate and low speed of the existing structure illumination microscope and have the advantages that the image refreshing speed is high (32KHz), and the optical energy utilization rate is high (higher than 90 percent). The system and the method are more applicable to the real-time three-dimension image study and high-speed dynamic process observation of living biological cells.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Organic electroluminescent display device and method of fabricating the same

An organic electroluminescent device includes first and second substrates spaced apart from and attached to each other, the first and second substrates including a plurality of pixel regions and a periphery region surrounding the plurality of pixel regions, a plurality of gate lines on an inner surface of the first substrate, a plurality of data lines crossing the plurality of gate lines, a plurality of driving thin film transistors, each of the driving thin film transistors adjacent to one of the plurality of pixel regions, a plurality of power lines connected to the driving thin film transistors, a plurality of gate pads connected to an end portion of the gate lines within the periphery region, a plurality of data pads connected to an end portion of the data lines within the periphery region, a plurality of power pads connected to an end portion of the power lines within the periphery region, at least one dummy pad within the periphery region, the at least one dummy pad being independent of each of the gate pads, the data pads, and the power pads, a first electrode on an inner surface of the second substrate, the first electrode connected to the dummy pad, an organic electroluminescent layer on the first electrode, a plurality of second electrodes on the organic electroluminescent layer within each of the pixel regions, and a plurality of connection electrodes electrically interconnecting the first substrate with the second substrate.
Owner:LG DISPLAY CO LTD

Large-visual-field-angle high-image-quality eyepiece optical system and head-mounted display device

The invention relates to a large-visual-field-angle high-image-quality eyepiece optical system and a head-mounted display device. The large-visual-field-angle high-image-quality eyepiece optical system comprises a first lens group and a second lens group which are coaxially and sequentially arranged from a human eye to an image source along an optical axis direction, wherein the first lens group and the second lens group satisfy a certain focal length relationship. The effective focal length of the first lens group is a negative value, and the first lens group is composed of a first lens close to the human eye and a second lens away from the human eye. The effective focal length of the second lens group is a positive value, and the second lens group is composed of one or two pieces of lenses. The first lens is in a biconvex shape, the optical surface, close to the human eye, of the second lens is recessed towards the human eye, and the first lens and the second lens are each of an aspheric surface type. The distance between the first lens and the second lens, a focal length relationship between lenses in the second lens group, and material characteristics of the lenses satisfy certain relationships, and the second lens group further comprises a fourth lens. The large-visual-field-angle high-image-quality eyepiece optical system has the advantages of large aperture, large field of view, high resolution, low distortion, small size and the like, and is suitable for the head-mounted display and similar devices.
Owner:SHENZHEN NED OPTICS CO LTD
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