摘要:
An improved microminiature radiation reflector is formed in a silicon support body with a fabricated cantilever member extending over a cavity that has been etched in the support body. The cantilever member has a reflection surface for reflecting incident radiation to a first position when the cantilever member is not deflected. An electromagnet is formed in the silicon support body adjacent the free end of the cantilever member for deflecting the cantilever member into the cavity of the support body so as to cause incident radiation to be reflected to a second position. An array of radiation reflectors is also disclosed for forming images from electrical signals applied to the electromagnets of selected ones of the radiation reflectors as a function of the position of their reflected radiation in the to be formed image.
摘要:
A method of compacting moisture-sensitive organic material adaptable for making an organic layer on a structure which will form part of an organic light-emitting device, includes placing such a desiccant material in a powder form inside a die cavity and applying a pressure to such a desiccant powder in the die cavity sufficient to compact into a porous desiccant bed; providing moisture-sensitive organic material in a powder form; and placing such moisture-sensitive organic material inside the die cavity over the porous desiccant bed, and applying sufficient heat to the moisture-sensitive organic material in the die cavity to cause moisture to escape from the moisture-sensitive organic material and be absorbed by the porous desiccant bed, and then applying sufficient pressure to compact the moisture-sensitive organic material into a solid organic pellet.
摘要:
A method for making micromagnets and magnets with a micro-polarization pattern on at least one surface thereof. The method includes the steps of molding a ceramic mold form including a cavity therein having a predetermined shape and a serpentine conduit path therethrough adjacent the cavity, the serpentine conduit path having a nominal diameter ranging down to as small as about 50 microns, sintering the mold form, supporting the mold form on a micro-porous substrate within a chamber, flooding one side of the mold form with a molten electrically conductive material, drawing a vacuum within the chamber on an opposite side of the mold form causing the molten electrically conductive material to flow into and through the serpentine conduit path toward the micro-porous substrate, cooling the molten electrically conductive material to form a serpentine electrical conductor in the mold form, forming a ferromagnetic element within the cavity, and imparting a micro-polarization pattern to the ferromagnetic element by transmitting an electrical current through the serpentine conductor.
摘要:
An improved microminiature radiation reflector is formed in a silicon support body with a fabricated cantilever member extending over a cavity that has been etched in the support body. The cantilever member has a reflection surface for reflecting incident radiation to a first position when the cantilever member is not deflected. An electromagnet is formed in the silicon support body adjacent the free end of the cantilever member for deflecting the cantilever member into the cavity of the support body so as to cause incident radiation to be reflected to a second position. An array of radiation reflectors is also disclosed for forming images from electrical signals applied to the electromagnets of selected ones of the radiation reflectors as a function of the position of their reflected radiation in the to be formed image.
摘要:
A method for making ceramic, micro-electromechanical tools which can be used for the production of micromagnets with a multi-pole, micro-polarization pattern. The method includes the steps of molding a plurality of base elements in the form of a generally planar array from a ceramic material, each of the plurality of base elements including a top surface and a bottom surface with a cavity in the top surface, forming a plurality of substantially parallel bores through each of the base elements in the generally planar array adjacent each of said cavities, forming a plurality of recesses in said top and bottom surfaces, the recesses being connected to the plurality of substantially parallel bores, the plurality of substantially parallel bores and the plurality of recesses combining to form a generally serpentine conduit path about the cavity, supporting the generally planar array on a micro-porous substrate within a chamber, flooding one side of the generally planar array with a molten electrically conductive material, drawing a vacuum within the chamber on an opposite side of the generally planar array and beneath the micro-porous substrate causing the molten electrically conductive material to flow into and through the plurality of substantially parallel bores and into the plurality of recesses, cooling the molten electrically conductive material to form a generally serpentine electrical conductor including a plurality of substantially parallel bus bars through each of the base elements, and cutting the generally planar array into a plurality of individual micro-electromechanical tools.
摘要:
A pump 10 for materials having a viscosity up to about 3.0.times.10.sup.5 cps, such as cellulose acetate, has a pump body 12 formed with a gear receiving means and, mounted thereon for closing the gear receiving means 13, a pair of side plates 16, 18 having bearing receiving cavities 21. The side plates 16, 18 have pressure relief means 50 for relieving pressure that builds-up in the intermesh of gears 14 when highly viscous material, such as cellulose acetate, is being pumped. This means of diverting the pressure buildup enables the pump 10 and component parts, such as shafts 22, 24 and plain bearings 20, to resist premature failure due otherwise to the resultant load caused by residual pressure buildup. In the preferred embodiment, wear resistant ceramic plain bearings 20 are press fitted in the bearing cavities. Grooves or channels 30 in the interior walls 32 of bearings 20 provide a means to lubricate shafts 22, 24 rotatably supported in the bearings 20. Wear resistant coatings, such as, thermally sprayed tungsten carbide, are coated on the shafts 22, 24 and surface 46 of side plate 16, 18 to promote wearability and increased life of the apparatus 10.