Abstract:
The present invention provides a rear projection display screen exhibiting an extremely excellent practicability which can realize the prevention of reflection with no color slurring and can prevent the generation of a ghost image. In a rear projection display screen which includes a first optical member which converts a diffusion light from a light source into a collimated light, and a second optical member which converts the collimated light output from the first optical member to light having a proper output angle-luminosity distribution in the order from the light source side, at least a light-source side surface of the second optical member has a refractive index distribution.
Abstract:
A method for producing a polarizing glass wherein a glass preform containing metal halide particles having a prescribed particle size dispersed therein is heated to a prescribed temperature and elongated, to thereby form a glass sheet containing elongated metal halide particles, and then said metal halide particles are reduced to the metal, characterized in that the glass sheet having been heated and elongated is quenched and then subjected to an annealing treatment, and thereafter, the above metal halide particles are reduced to the metal. The method allows the removal of the stress which generates during the above heating and elongating treatment and residues in the glass sheet, without the reduction of the extinction ratio of the resultant glass sheet, which results in the production of a polarizing glass having good optical characteristics at a low cost.
Abstract:
A magnetic recording medium having a durability improving, carbon protective film formed on a surface of a magnetic recording layer, which is in turn disposed on a substrate, and a lubricant coated on a surface of the carbon film remote from the substrate; wherein a coupling agent layer is disposed between the carbon protective film and the lubricant, so that the force of adhesion of the lubricant to the carbon film is greatly improved, thus producing a magnetic recording medium having excellent lubricity and wear resistance.
Abstract:
A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.
Abstract:
In one embodiment, a magnetic disk medium includes a nonmagnetic substrate, a magnetic recording layer above the nonmagnetic substrate, a protective layer above the magnetic recording layer, and a lubricant layer above the protective layer, the lubricant layer including a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated R1-OCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2O—R2, wherein R1 and R2 are alkyl chains having at least two hydroxyl groups each, and m is an integer indicating a number of repeating units. According to another embodiment, a magnetic disk medium lubricant includes a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated as above, such that a magnetic head is provided stable flight above the lubricant layer in conditions having relative humidity of greater than about 40%.
Abstract:
Embodiments of the present invention provide a magnetic head slider having a surface that is formed into a multiple step configuration to stabilize flying of the slider. According to one embodiment, a magnetic head slider has an air bearing surface including surfaces in three stages different in height from one another. An outflow side rail surface and inflow side rail surfaces, in a first stage are approximately the same in height. A rear step bearing surface, front step bearing surface, and side step bearing surfaces and, which are in a second stage, are shallow step surfaces being approximately the same in height, and being formed lower than the surfaces in the first stage. A deep cavity surface is formed further lower than the surfaces in the second stage. A film for preventing adhesion of organic contaminants and a lubricant is formed on the shallow step surfaces, and in the second stage.
Abstract:
There is provided a manufacturing method of polarizing glass through which residual strain within a heated and elongated glass sheet is steadily removed. The manufacturing method of polarizing glass includes steps of precipitating metal halide dispersed within glass into a predetermined particle size to form glass preform after melting the glass containing the metal halide, elongating the glass preform after heating up to predetermined temperature to form a glass sheet containing metal halide particles, annealing the glass sheet by heating up to temperature below transition temperature and above straining temperature of the glass, polishing the glass sheet annealed through the annealing step and reducing the metal halide particles within the glass sheet polished through the polishing step.
Abstract:
The method for producing the polarizing glasses which have elongated metal particles oriented uniformly and dispersed, includes a glass base material preparing process in which the metal halide particles are precipitated in the strip of the glass base material; a elongating process in which the glass base material is heated by heaters set around the glass base material, and elongated by a drawing means set outside of the heaters along the longitudinal direction of the glass base material; and a reducing process in which the metal halide particles included in the elongated glass which is elongated in the elongating process are reduced. In the elongating process, the powers of the heaters are controlled so that the glass base material shrinks the outlines of the elongated part of the glass base material tilting by the tilt angle between 5 degrees and 20 degrees to the longitudinal direction of the glass base material.
Abstract:
A color display having a monochromatic light source, an optical switch and an array of pixels formed of anisotropically emitting photoluminescent material may be combined such that large losses often associated with color filter and polarizers are avoided such that a high efficient display results. The optical switch may be a liquid crystal device that is tuned to the wavelength of the monochromatic light source. The monochromatic light source may be made from OLED material that emits in the violet, near UV or blue spectrum and may be polarized. The array of pixels may include a transmissive pixel when the backlight spectrum is the same as the color of one of the pixels.
Abstract:
A method of manufacturing a transparent conductive film is provided, which is capable of obtaining a transparent conductive film having both reduced specific resistance and reduced film compressive stress, and a transparent conductive film manufactured by the same method is also provided. The temperature of a substrate placed in opposed relation to an anode is set to not more than 130° C. A plasma beam is generated by discharge plasma generating means constituting a cathode and guided to the anode such that an evaporation material received in the anode evaporates and particles of the evaporated materials are ionized, to thereby form the transparent conductive film on a surface of the substrate. The transparent conductive film thus formed is subjected to a heat treatment at a temperature of not less than 180° C. The resulting transparent conductive film has a specific resistivity of 230 &mgr;&OHgr;·cm or less and a film compressive stress of 0.35 GPa or less.