Lens Inc | Date: 2013-02-13
To provide an optical member, formed without generating cracks in a hard coat layer of desired film thickness, and a method of manufacturing an optical member that permits the manufacturing of the above optical member. The optical member of the present invention is characterized by comprising a lens substrate having a curved surface, a porous intermediate layer formed so as to cover an edge portion of the lens substrate in a planar view along an optical axis of the optical member, and a hard coat layer formed so as to cover the lens substrate and the intermediate layer in the planar view; as well as characterized in that the hard coat layer comprises a thick film portion, formed on the edge portion of the hard coat layer and thicker than a center portion of the hard coat layer in the planar view, and when a maximum film thickness of the intermediate layer is denoted as A (m) and a maximum film thickness of the thick film portion is denoted as B (m), a relation of A/B being equal to or greater than 3% but equal to or less than 20% is satisfied.
Lens Inc | Date: 2013-05-23
The present disclosure provides a continuous strengthening device comprising a bracket, at least a strengthening furnace located below the bracket and at least a pre-heating/annealing furnace movably located on the bracket. The strengthening furnace comprises a first furnace body having a first opening located on the top and a first movable furnace cover movably located on the top of the first furnace body for sealing the first opening. The pre-heating/annealing furnace comprises a second furnace body having a second opening located on the bottom and a second movable furnace cover movably located on the bottom of the second furnace body for sealing the second opening. In operation, whilst the pre-heating/annealing furnace moved onto the strengthening furnace, the first movable furnace cover and the second movable furnace cover both open, so that furnace bodies of the pre-heating/annealing furnace and the strengthening furnace are connected to form an airtight space.
Lens Inc | Date: 2014-01-29
The optical article includes an optical substrate comprising a concave surface with a radius of curvature of equal to or greater than 350 mm on one side and a convex surface with a radius of curvature of equal to or greater than 120 mm on the other side, a first antifouling layer directly or through at least one additional layer on the concave surface, and a second antifouling layer directly or through at least one additional layer on the convex surface, and satisfies the conditions below:
Lens Inc | Date: 2013-02-08
To provide an optical member in which a patterned shape is visible when viewed from a prescribed angle without impeding the field of vision of the wearer, and a method of manufacturing an optical member permitting the manufacturing of such an optical member. The optical member of the present invention is characterized by comprising a lens substrate
Lens Inc | Date: 2013-06-18
An aspect of the present invention relates to an optical article, which comprises a plastic substrate, and a hard coat layer directly, or through another layer, on a surface of the plastic substrate, wherein the hard coat layer comprises a filler component comprising chain-like inorganic oxide microparticles, and in the hard coat layer, a content of the chain-like inorganic oxide microparticles is equal to or greater than 15 mass percent and a content of the filler component ranges from greater than 20 mass percent to less than 40 mass percent, and a layer thickness of the hard coat layer is equal to or greater than 8 m but equal to or less than 15 m.