Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.

Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.

Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.

Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.

Abstract: A thermal dye transfer sheet having a dye layer provided on at least one side of a substrate, which is used for thermal dye transfer recording system carrying out recording by transferring a dye or dyes in the dye layer to a dye-receiving material by heating means, wherein the dye layer contains a pyrazolonemethine type dye of the following formula: ##STR1## wherein R.sup.1 and R.sup.2 can be respectively independently selected and are a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted or an aryl group which may be substituted; andR.sup.3 and R.sup.4 can be respectively independently selected and are a lower alkyl group which may be substituted, a dialkylamino group, a --COOR.sup.5 group or a --CONR.sup.6 R.sup.7 group, in which R.sup.5 is a lower alkyl group which may be substituted, a lower alkenyl group which may be substituted or an aryl group which may be substituted and R.sup.6 and R.sup.

Abstract: A transfer foil for use in marking a golf ball has an ink layer on a base film. The ink layer is constructed by a urethane resin having a hydroxyl value of 0.2 to 15. The ink layer is transferred from the foil to the golf ball to form a marking by pressing the foil against the ball by means of a flat rubber pad. A two-part urethane resin composition is then spray coated onto the golf ball so as to cover the marking, dried and cured thereto. During the process, hydroxyl groups of the ink layer urethane resin react with isocyanate groups available from the urethane resin coating composition whereby the marking is durable.