Abstract: To impart antiglare properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass according to the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, and after the blasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: To impart an re properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass accord o the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, an lasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: To impart antiglare properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass according to the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 (average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, and after the blasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: To impart antiglare properties without reducing the amount of transmitted light, a method for processing a surface of light-transmitting-glass according to the present invention comprises a blasting step of ejecting abrasive grains with particle sizes of #800 to #3000 (average particle diameter 14 ?m to 4 ?m) such as WA (white alundum: high-purity alumina) having higher hardness than that of the glass onto a light-receiving surface of the glass having light-transmitting property to be processed for forming indentations and protrusions in the light-receiving surface of the glass, and after the blasting step, a hydrofluoric acid treatment step of immersing the light-receiving surface of the glass into a hydrofluoric acid solution in 10% to 20% concentration for 30 to 600 seconds thereby increase a height (amplitude) of indentations and protrusions of the surface of light-transmitting-glass.

Abstract: A method enabling to form a lubricating layer on a work piece and a device to form the same in a simple blast processing are provided, in which injection materials can be injected at higher speed than the conventional way, thereby even a small specific gravity injection materials such as graphite and the like can be used for blast operation. In an injection nozzle of a direct pressure type blast processing device which injects a mixture of injection materials and compressed gas, an aperture which is formed in an axial direction of the injection nozzle has such shape that meets the following conditional equations (1) and (2) in a cross section orthogonal to the axial direction at an arbitrary distance x away from the entrance of the injection nozzle.