A measuring device and method for measuring a volume of a gel-like, powder-like or liquid-like material is provided by defining a desired volume of the material, moving a peripheral measuring edge of a longitudinal inner member along an inside wall of a longitudinal outer member to the desired volume corresponding to an indicator indicated at one of a plurality of measurement positioning stops, filling the material in the longitudinal outer member on top of the longitudinal inner member, moving ...

A measuring device and method for measuring a volume of a gel-like, powder-like or liquid-like material is provided by defining a desired volume of the material, moving a peripheral measuring edge of a longitudinal inner member along an inside wall of a longitudinal outer member to the desired volume corresponding to an indicator indicated at one of a plurality of measurement positioning stops, filling the material in the longitudinal outer member on top of the longitudinal inner member, moving ...

According to the present invention, there is provided a method for forming a color tube phosphor screen comprising the steps of forming a light-absorbing matrix having holes on a faceplate, coating a silica colloidal solution or an alumina colloidal solution containing a multivalent metal ion in said holes and washing said holes, and forming phosphor layers of three colors in said washed holes. The color tube phosphor screen formed through the method of the present invention has no phosphor resi...

Manufacturing couplers for optical fibers having thin precision dimensions for precision alignment and low-loss coupling of optical fiber segments are disclosed. The couplers can be formed by depositing material on a precision mandrel, removing the mandrel, and then further machining the couplers if necessary. Design variations include simple sleeves and sleeves having ends that are flanged outward so that the ends taper to the correct diameter.

A method for forming a very fine phosphor screen of a monochrome cathode ray tube whose roughness is inconspicuous even if the picture is enlarged. White phosphors (P45) whose average particle diameter D by a dry method is 1.5 .mu.m, ethanol, and ammonia water are stirred and maintained at 50.degree. to 55.degree. C. A mixed solution of ethyl silicate and ethanol as well as ammonia water are separately dropped into the mixed solution containing the phosphor particles (P45). After standing still,...

The invention is a method and apparatus for a pirani pressure sensor. The apparatus consists of a current supply and current receiving means affixed to a substrate. Bridging the current supply means and current receiving means is an electrically conductive polymer. The pirani pressure sensor may be made using conventional photolithographic techniques.

The present invention relates to a method for producing a viewing angle compensator for liquid crystal displays which diminishes the view angle dependency of the liquid crystal display. More specifically, the method of making the view angle compensator involves applying a coating of an optically active polyester containing as a constituent a hydrocarbon unit selected from the group consisting of bulky aromatic units, polycyclic hydrocarbon units and ortho-substituted aromatic units, or a composi...

A method of forming a strain sensor from a polymeric film includes the steps of selectively irradiating a surface of the polymer with high energy radiation to change the composition of the polymer and increase the electrical conductivity in selected portions of the surface. The radiation can create carbonized particles or metallic particles within the polymer and the changes in interparticle gaps between conducting particles in the polymer will result in strain dependent electrical properties in...

On the internal face of the frontal panel forming a color television tube, in order to obtain a cathodoluminescent screen, phosphors are deposited. A layer of aluminum must be deposited on the phosphors. An intermediate smoothening product, later decomposed, permits to obtain a layer of a satisfactory quality. A layer of ammonium tetraborate, forming microcrystals, is deposited on the product, piercing the aluminum layer so as to help the discharge of gases resulting from the decomposition of th...

A wave speed meter comprises a pair of relatively rotatable, concentric cylinders with a gap between the cylinders to define a chamber. A viscoelastic fluid is placed in the chamber, and one of the cylinders is suddenly rotationally displaced causing a shear induced wave to be propagated through the fluid filling the chamber between the cylinders. This wave is propagated toward the other cylinder and when the wave reaches the other cylinder the other cylinder moves. The transit time of the wave ...