42results about How to "Image quality is clear" patented technology

Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

Development systems and methods for developing using toner are disclosed. The present invention further discloses developers used in development systems. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. The development system of the present invention further includes a fuser roll which is coated with a silicone rubber or other low surface energy elastomer or resin. The fuser roll is preferably in a pressure contact arrangement with a backup or pressure roll. The images resulting from the development system of the present invention have an excellent combination of properties, in particular, the prints resulting from the development process of the present invention have improved image quality in combination with excellent fusing quality. A method for developing electrostatic images with toner is further disclosed, for example, involving the above-described development system.

The present invention belongs to an accessory of a camera in a monitoring system, particularly belongs to an optics transparent cover specially used for a spherical monitor camera. The invention relates to a monitor camera hyper-hemispherical transparent cover, comprising an optics spherical cover, a flange seat, a clamping ring and a sealing ring, and the essential of the structure is that the sealing ring is a U-shape sealing ring, the clamping ring is composed of two parts, the optics spherical cover is composed of two spherical cover assemblies with a horizontal central angle of 0-180 DEGand a vertical central angle of greater than 90 degrees, the edge of the optics spherical cover is arranged in the groove of the sealing ring, and the clamping ring wrapping the sealing ring is fixedon the flange seat. The monitor camera excess hemisphere transparent cover has the advantages that the spherical cover exceeds a hemisphere on the whole after splicing, allows the camera equipped therein to have a larger visual scope, and provides more legible image quality than that provided by a common spherical cover conical surface; the split type clamping ring is convenient for the installation of the excess hemisphere cover; the U-shape sealing ring effectively plays a role of sealing, also plays a role of protection to the excess hemisphere cover when clamping ring is being mounted andlocked, and disperses the stress generated during installing the clamping ring.

The invention relates to the security technology and discloses a video monitoring system, a video monitoring method and a spherical camera. A plurality of signals, such as a video signal, a control signal and the like are compounded to reduce the number of slip ring cores practically needed in signal transmission of the camera, so that the camera is adapted to a spherical camera structure. The data stream transmitted to equipment at the rear end by the spherical camera is the data stream which contains uncompressed high-definition video primary data, so that video acquisition equipment does not need complex encoding and decoding, network protocol and the like, has simple total design and reduces the power consumption. At the same time, the spherical camera has the characteristics of high real-time property, high quality of images and the like.

A liquid crystal module full-lamination structure at least comprises a shell, a liquid crystal panel, a light guiding plate and a plurality of optical diaphragms, wherein the light guiding plate and the optical diaphragms are positioned in the shell; the optical diaphragms are stacked together and are arranged above the light guiding plate; the liquid crystal panel is in lap joint to the shell; and a buffering layer and an optical transparent adhesive tape are arranged between the liquid crystal panel and the top optical diaphragm. The optical transparent adhesive tape is arranged between the liquid crystal panel and the top optical diaphragm of the liquid crystal module full-lamination structure, a refraction angle of light emitted to the liquid crystal panel is reduced, the buffering layer surrounds the optical transparent adhesive tape, gapless sealing between the liquid crystal panel and the shell is realized, the light is stopped from leaking outwards, so that light loss is reduced effectively, the incident rate of the light emitted to the liquid crystal panel is improved, the light utilization rate is improved, and the imaging quality of the liquid crystal panel is high.

The invention relates to the technical field of medical film, especially relates to a dual-purpose medical film for waterborne inkjet and laser printing and preparation method thereof. The dual-purpose medical film is prepared from a base material, the base material is PET sheet or PVC sheet, the thickness of the base material is 75 to 180 mu m, an upper surface of the front of the base material is provided with two layers of coating, i,e., a printing layer and an adhesion layer below the printing layer, the back of the base material is coated with a functional auxiliary coating, the dual-purpose medical film can print black or color images with high resolution, clear image and good color reducibility both on a laser printer and an inkjet printer.

A kind of guiding mechanism of free curved surface total reflection visual optical prism and outgoing optical axis depth of parallelism, the visual optical prism includes a flat incident plane and sphere outgoing plane and free curved surface reflection plane, the incident plane makes light beam incident into the visual optical prism; the outgoing plane reflects light beam to the reflection plane; the reflection plane reflects light beam back to the outgoing plane, at last the light beam is refracted by the outgoing plane to pupil, the amplified image of the visual optical prism can be seen from pupil, the guiding mechanism includes rack, adjusting screw, two bosses on top of the visual optical prism, and rotation shaft of bass, the visual optical prism is mounted from lower part of the rack, the adjusting screw is screwed in the rack and pressed the visual optical prism. The loss of optical energy is little, quality of imaging is clear, weight is light and convenient to wear, number of optic accessory is little, shape of structure is simple for assembly, and adjustment is easy.

The present invention relates to an ink set for inkjet recording containing a white ink and color inks including a cyan ink, a magenta ink and a yellow ink, wherein each ink independently contains a pigment, a pigment dispersing resin, an organic solvent and water, the pigment dispersing resin A of either the white ink or the color inks has an alkyl chain with a carbon number of 10 or greater, the pigment dispersing resin B of the other of the white ink or the color inks has a polyoxyalkylene chain, and the pigment dispersing resin A and the pigment dispersing resin B are different resins. According to the present invention, an ink set for inkjet recording can be provided that exhibits excellent printability during high-speed printing, even when printing onto less permeable substrates, and is capable of producing sharp image quality with little mixed color bleeding.

The invention relates to a radioactive compound labeling technology in the field of positron imaging agents, in particular to a method for synthesizing carbon-11 labeled N-methyldopamine hydrochloride. The preparation method comprises the following steps of: A, fully reacting 200 to 300mCi of carbon-11 methyl iodide (II) with 3 to 6mg of dopamine hydrochloride (III) dissolved and neutralized by excessive 0.1mol / L sodium bicarbonate solution at the temperature of between 70-85DEG C, and cooling to room temperature to obtain reaction liquid; and B, blowing the reaction liquid in the step A to dryness, separating, collecting a substance with a radioactive component, wherein the radioactive component is the carbon-11 labeled N-methyldopamine hydrochloride (I). The carbon-11 labeled N-methyldopamine hydrochloride has strong affinity with a dopamine transporter and a norepinephrine transporter, can early discover the change of cardiac sympathetic nerves, and provides a strong evidence for early diagnosis and treatment of heart disease; and the preparation method is simple and practicable, good in repeatability, low in synthetic cost and stable in yield.