A white-light-transmitting composite film layer is provided with a medium layer and an indium coating, wherein the medium layer is closer to a white light source than the indium coating. The medium layer is a transparent coating containing 0.5-8% of a blue pigment and 0-2% of a purple pigment; or the medium layer is a transparent plastic film containing 0.5-8% of a blue pigment and 0-2% of a purple pigment. The white-light-transmitting composite film layer utilizes the principle of complementary colors in chromatics, and the special medium layer is attached to one side of the indium coating, so that the composite film layer can realize white light transmission, and the color temperature value of transmitted white light is 5200-7200 K.

A lens tinted and/or shaded according to a particular and predefined shape having at least first and second colour zones and/or a third shaded zone according to a gradient of transition from the first to the second colours, the second colour zone and/or third shaded zone according to a gradient obtained by subjecting a colour lens to a process having the following steps: positioning lenses on at least one frame, arranging the frame above a colouring tank or bath, the frame being vertically movable along first and second vertical axes z1, z2, respectively, the z1 stroke being greater than that of z2, the frame being rotatable about an axis of rotation, perpendicular to axes z1 and z2, and parallel to the free surface of the bath; the shape on the lens obtained by a combination of movement according to axis z1, axis z2, and/or rotary axis or rotation direction.

A method for making a colorant film providing eye care includes following steps of providing a plurality of microcapsules containing hydrogen peroxide aqueous solution; mixing a hydrophilic monomer, a cross-linking agent, and an initiator to form a mixture; mixing the microcapsules, the mixture, a pigment, and a solvent to form a colorant material; printing the colorant material into a mold; and heating or irradiating the colorant material in the mold to copolymerize the hydrophilic monomer, the initiator, and the cross-linking agent. A colorant film, and the manufacture of an ophthalmic lens are also provided.

A lens includes a light-transmitting portion and a light-shielding portion adjacent to at least a portion of the light-transmitting portion and integrated with the light-transmitting portion. The light-shielding portion includes at least one of carbon nanotubes and carbon black.

The invention is directed to a colored contact lens designed for making a wearer's eyes to appear larger, bolder, and enhanced color while giving the wearers eyes a very natural appearance. A colored contact lens of the invention comprising a first print of a first color and a second print of a second color, wherein the first print consisting of an annular ring of gradient dot matrix, wherein the second print comprises a limbal ring and an outer starburst pattern, wherein the limbal ring surrounds the outer starburst pattern, wherein the annular ring and the limbal ring have a substantially identical outer diameter and the annular ring has a larger inside diameter than the limbal ring, the first color and the second color are different or the same, wherein the first print and the second print are concentric with the center of contact lens.

A dyeing base body to be used in a dyeing step of dyeing a resin body by heating a sublimable dye attached to the dyeing base body by electromagnetic waves to sublime the dye toward the resin body. The dyeing base body includes a metal base made in sheet form and an electromagnetic wave absorption layer formed on at least an opposite side to the side to which the dye will be attached. The electromagnetic wave absorption layer has a higher electromagnetic wave absorption rate than the base.

Disclosed is a dyeing method using a laser beam. The method can dye transparent resins such as plastic lens well. Also disclosed is a dyeing apparatus. The dyeing method comprises heating a plastic lens having a dye-coated surface to fix the dye on the surface of the plastic lens. The method comprises the step of applying a laser beam with a wavelength, which is less likely to be absorbed in the dye but it absorbed in the plastic lens, onto the surface of the plastic lens through the dye.

A dyeing data management method is performed between dyeing systems disposed at different locations. The method includes a first dyeing step of dyeing a lens in a first dyeing system, a first acquisition step of acquiring first result color information of the lens dyed in the first dyeing system, a dyeing data creation step of creating dyeing data based on a discharge amount of dye in the first dyeing step and the first result color information, a data provision step of providing the dyeing data for dyeing a lens to a predetermined color from the first dyeing system to a second dyeing system, a second dyeing step of performing dyeing of a lens according to the provided dyeing data in the second dyeing system, and a second acquisition step of acquiring second result color information of the lens dyed in the second dyeing system.

The present invention relates to a method for providing a substrate with a tint and a functional coloring, comprising the following steps (a) to (c) in this order: (a) providing a substrate to be provided with a tint and a functional coloring, the substrate being made of plastic glass and the substrate having a first main side and a second main side with a convex shape opposite the first main side, (b) applying a tint to both main sides of the substrate provided in step (a), and (c) applying a functional coloring to both main sides of the substrate provided with a tint on both main sides in step (b) by dip coating, thereby obtaining a substrate provided with a tint and a functional coloring on both main sides.

A dyeing system includes a conveyance device, a reader, a dye fixing device, and a controller. The conveyance device conveys a conveyance unit including the resin body. The reader reads information relating to the conveyance unit. The dye fixing device heats the resin body in the conveyance unit conveyed by the conveyance device and fixes a dye adhering to a surface of the resin body, on the resin body. The controller acquires a parameter for a process executed to the resin body in the conveyance unit, based on the information read by the reader. The controller controls the dye fixing device based on the acquired parameter.