Abstract: The purpose of the present invention is to provide a zinc-nickel-silica composite plating bath that has been improved in terms of: covering power for articles having a complex shape; and corrosion resistance of a low current density portion where the film thickness is small. The present invention pertains to a zinc-nickel-silica composite plating bath, the plating bath having a pH of 3.5 to 6.9, and containing zinc ions, nickel ions, colloidal silica, and chloride ions. The colloidal silica is a cationic colloidal silica having on the surface thereon at least one species of metal cation selected from the group consisting of trivalent to heptavalent metal cations.

Abstract: To provide a green phosphor with high conversion efficiency of blue of near-ultraviolet light and excellent color purity, a multinary oxynitride phosphor represented by the general formula [I] is proposed. M1xBayM2zLuOvNw??[I] In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb, M2 represents Sr, Ca, Mg and Zn, L represents metal elements belonging to the fourth group or the fourteenth group of the periodic table, and x, y, z, u, v and w are the numeric values in the following ranges: 0.00001?x?3 0?y?2.99999 2.6?x+y+z?3 0<u?11 6<v?25 0<w?17.

Abstract: An object of the present invention is to provide a high-efficiency red light emitting phosphor and white light emitting phosphor for using in a display or lighting which high-efficiently emits light in combination with a light source which emits light in the region from near-ultraviolet light to visible light. The present invention relates to a phosphor having a crystal phase having a specified chemical composition.

Abstract: To provide a green phosphor with high conversion efficiency of blue of near-ultraviolet light and excellent color purity, a multinary oxynitride phosphor represented by the general formula [I] is proposed. M1xBayM2zLuOvNw??[I] In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb, M2 represents Sr, Ca, Mg and Zn, L represents metal elements belonging to the fourth group or the fourteenth group of the periodic table, and x, y, z, u, v and w are the numeric values in the following ranges: 0.00001?x?3 0?y?2.99999 2.6?x+y+z?3 0<u?11 6<v?25 0<w?17.

Abstract: To provide a green phosphor with high conversion efficiency of blue of near-ultraviolet light and excellent color purity, a multinary oxynitride phosphor represented by the general formula [I] is proposed. M1xBayM2zLuOvNw??[I] In the formula [I], M1 represents Cr, Mn, Fe, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb, M2 represents Sr, Ca, Mg and Zn, L represents metal elements belonging to the fourth group or the fourteenth group of the periodic table, and x, y, z, u, v and w are the numeric values in the following ranges: 0.00001?x?3 0?y?2.99999 2.6?x+y+z?3 0<u?11 6<v?25 0<w?17.

Abstract: An object of the present invention is to provide a high-efficiency red light emitting phosphor and white light emitting phosphor for using in a display or lighting which high-efficiently emits light in combination with a light source which emits light in the region from near-ultraviolet light to visible light. The present invention relates to a phosphor having a crystal phase having a specified chemical composition.

Abstract: A structured lighting material, an illuminator, and the method to generate incoherent luminescence wherein luminescent intensity increases superlinearly when excitation energy applied thereto through electron beam, electric charge, electric field or the like exceeds a threshold. In the present invention, the structured lighting material is easily made to have a minute uneven surface. This invention enables high-efficient lighting devices, sensors and memories owing to the superlinearity.

Abstract: A structured lighting material, an illuminator, and the method to generate incoherent luminescence wherein luminescent intensity increases superlinearly when excitation energy applied thereto through electron beam, electric charge, electric field or the like exceeds a threshold. In the present invention, the structured lighting material is easily made to have a minute uneven surface. This invention enables high-efficient lighting devices, sensors and memories owing to the superlinearity.

Abstract: A light source device using an optical fiber in which the light emitted from a filament lamp is incident on the end face of the optical fiber with high efficiency is achieved by using a reflector which is an ellipsoid of revolution having first and second focal points, the filament coil of the lamp being located at the first focal point and the end face of the optical fiber being located at a second focal point. Furthermore, the area of the filament of the filament lamp A (mm2), an area of the incidence face of the optical fiber B (mm2), and a value of a focal length C, set as a distance between an apex of the reflector and the first focal point divided by a distance between the apex of the reflector and the second focal point, have a relationship with respect to each other such that a constant a defined by the relationship: &agr;=A×(C/B) has a value that is less than or equal to 20.