摘要:
Three-dimensional information is presented directly on the surface of a target three-dimensional object without using a display device such as a display monitor and an HUD. Spatially coded light patterns are projected from two projectors on a target object surface. The light projected from the two projectors are added up on the object surface to produce unified color and luminance. On the object surface, light is simply added up, so that a pattern whose color and brightness correspond to distance and height appears. Hence, a distance to an object or a three-dimensional shape of an object can be highlighted by the color and brightness presented on the object for perception by human beings.
摘要:
Three-dimensional information is presented directly on the surface of a target three-dimensional object without using a display device such as a display monitor and an HUD. Spatially coded light patterns are projected from two projectors on a target object surface. The light projected from the two projectors are added up on the object surface to produce unified color and luminance. On the object surface, light is simply added up, so that a pattern whose color and brightness correspond to distance and height appears. Hence, a distance to an object or a three-dimensional shape of an object can be highlighted by the color and brightness presented on the object for perception by human beings.
摘要:
The invention provides an artificial tooth root having acid resistance and anti-adherence of sordes and various germs, consisting of a substrate and a coating of calcium phosphate based ceramic having bioaffinity formed on the surface of this substrate, the substrate is composed of a polymer, ceramic, metal, or other material, the surface of the ceramic coating on the substrate surface is endowed with a protrusion-and-recession configuration, and is, chemically modified, and to a method for producing the artificial tooth root, by forming a coating of calcium phosphate based ceramic having bioaffinity over a substrate while imparting protrusions and recessions thereto, masking an area of the ceramic coating surface of which bioaffinity is required, and fixing a silane coupling agent exclusively over a predetermined area of the ceramic coating surface.
摘要:
This invention provides mesostructured oxide ceramics and a synthesizing method thereof, the synthesizing method employs a water-based solvent containing a metallic salt or metal complex as the ceramics precursor, template formed from an organic compound or the association thereof, and a precipitant, wherein mesostructured oxide ceramics are obtained from self-assembled oxide ceramics and organic substance by directly extracting oxide ceramics at a low temperature of 200° C. or less by utilizing a homogenous precipitation reaction from said ceramics precursor under the coexistence of a nanometer-sized template in the solvent, and separating and collecting the obtained precipitation, and mesostructured oxide ceramics is prepared by employing the synthesizing method described above.
摘要:
The present provides a biomaterial composed in part of a porous material having an internal structure that has been completely controlled so as to optimize living tissue infiltration or cell introduction, a method of manufacturing, and uses thereof, including bio-implant materials for artificial bones, artificial joints and artificial tooth roots, and cell culture supports; the biomaterial undergoes increased infiltration by living tissues and the like owing to the formation of a porous region in at least a portion of the material, wherein the porous region is a porous body having therein a group of oriented pores that has an orientation and is made up of pores whose size, shape and direction have been controlled to optimize living tissue infiltration or cell introduction, and also having formed therein connecting pores that link together the primary pores and enable the passage of bodily fluids and gas bubbles, and formed with a spatial configuration in which the oriented pores are not directly connected to other oriented pores and the connecting pores which link together the oriented pores are not directly connected to other connecting pores.
摘要:
The present invention provides an orthopedic and dental endosseous implant material having a ceramic coating with good adhesion on a metal substrate, and a method for producing this material, and a coating having a gradient composition composed of a ceramic or metal is formed on a ceramic or metal substrate to moderate the residual stress produced by the difference between the coefficients of thermal expansion of the substrate and the coating, thereby increasing the stability of the coating. With this orthopedic and dental endosseous implant material, and the production method thereof, a combination of a metal or ceramic powder having a coefficient of thermal expansion similar to that of the substrate and a metal or ceramic powder having a coefficient of thermal expansion different from that of the substrate is used as the above-mentioned metal or ceramic, a composite composition is formed using this mixture of powders, the metal is nitrided during the formation of a gradient composition, and a nitride layer is formed in the metal in the gradient composition, thereby increasing the stability of the coating.
摘要:
The centrifuge of the present invention is a centrifuge wherein a rotor is engaged integrally with a drive shaft, in the direction of turning, so that it can be freely attached and detached, wherein the drive shaft is attached to the equipment frame through elastic members, a spherical surface is formed in the upper part of the drive shaft, a spherical concave surface corresponding to the spherical surface in the drive shaft is formed in the top surface of a bearing hole in the rotor, the spherical concave surface of the bearing hole is made to ride on the spherical surface of the drive shaft, and the rotor is engaged so that it can swing freely relative to the drive shaft.
摘要:
A lifter particularly usable for an LC display unit includes a slide board bearing the display unit overhead and driven for vertical movement by a lift drive motor associated with a swing arm kept in rolling contact with the slide board, a gear assembly mounted to the slide board for converting rotation of a tilt drive motor into corresponding tilting of the display unit, and various sensors for controlling rotation of the motors on detection of the positions of the display unit. Vertical movement of the display unit requires a quarter rotation of the swing arm which is very small in ambit and, as a consequence, a compact and light design of the entire lifter construction. The rolling contact of the swing arm with the slide board assures reliable fail-safe function when smooth vertical movement of the slide board is hindered by accidental introduction of a foreign matter in its path of travel.