Abstract: 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.

Abstract: A plastic lens and a molding apparatus for manufacturing the plastic lens are provided. The plastic lens includes an optical portion that refracts light and a flange portion that extends from the optical portion, wherein a parting line is continuously formed along a circumference of the flange portion on a side surface of the flange portion. The molding apparatus includes a first mold including a first core portion and a first body portion which accommodates the first core portion, a second mold including a second core portion and a second body portion which accommodates the second core portion, and a third mold including a third body portion coupled to a first surface of the second body portion that faces the first body portion.

Abstract: A lens device includes a lens including an optical unit, and a rib portion extending outwardly of the optical unit in a radial direction, where the rib portion includes a light transmission region and a light blocking region, and where the light blocking region is disposed inside of the rib portion. The light blocking region may include a non-polar colorant. The lens may include a cyclic olefin compound. The lens device may include one or more lenses with rib portions with light transmission regions and light blocking regions, and may be a lens assembly with the one or more lenses.

Abstract: A lens includes an optical portion; and a rib portion extending to an external side of the optical portion in a radial direction and including a light transmitting region and a light-shielding region, wherein the light-shielding region includes an ester-based compound and a hydrocarbon-based compound, and wherein the hydrocarbon-based compound includes a saturated hydrocarbon compound.

Abstract: A lens device includes a lens including an optical unit, and a rib portion extending outwardly of the optical unit in a radial direction, where the rib portion includes a light transmission region and a light blocking region, and where the light blocking region is disposed inside of the rib portion. The light blocking region may include a non-polar colorant. The lens may include a cyclic olefin compound. The lens device may include one or more lenses with rib portions with light transmission regions and light blocking regions, and may be a lens assembly with the one or more lenses.

Abstract: 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.

Abstract: A method of dyeing a lens, and a method of manufacturing a lens assembly is provided. The method includes an operation of dipping the lens in a dyeing solution containing a non-polar dye.

Abstract: The printed circuit board for the memory card includes an insulating layer; a mounting unit formed on a first surface of the insulating layer and electrically connected to a memory device; a terminal unit formed on a second surface of the insulating layer and electrically connected to electronic apparatuses of an outside; and metal layers formed at the mounting unit and the terminal unit and made of the same material.

Abstract: Provided is a printed circuit board, including: a circuit pattern or a base pattern formed on an insulating layer; and a plurality of metal layers formed on the circuit pattern or the base pattern, wherein the metal layers includes: a silver metal layer formed of a metal material including silver; a first palladium metal layer formed at a lower part of the silver metal layer; and a second palladium metal layer formed at an upper part of the silver metal layer.

Abstract: Provided is a printed circuit board, including: a circuit pattern or a base pattern formed on an insulating layer; and a plurality of metal layers formed on the circuit pattern or the base pattern, wherein the metal layers includes: a silver metal layer formed of a metal material including silver; a first palladium metal layer formed at a lower part of the silver metal layer; and a second palladium metal layer formed at an upper part of the silver metal layer.

Abstract: Provided is a printed circuit board for a memory card and a method of manufacturing the same, the printed circuit board for the memory card, including: an insulating layer; a mounting unit formed on a first surface of the insulating layer and electrically connected to a memory device; a terminal unit formed on a second surface of the insulating layer and electrically connected to electronic apparatuses of an outside; and metal layers formed at the mounting unit and the terminal unit and made of the same material.