摘要:
A jig adapted to hold a contact lens material having a concave surface, for holding the contact lens material, including a protruding portion which has a top end having as an outer surface thereof a convex surface. This convex surface of the jig is bonded to the concave surface of the contact lens material. The protruding portion has a recess which extends from an inner surface of the top end toward a bottom end of the protruding portion. The recess is defined by an inner surface which includes a first portion that corresponds to the convex surface of the top end of the protruding portion. At least the first portion of the inner surface is roughened with a light-scattering texture. A method of holding the contact lens material while the contact lens material is processed into a contact lens is disclosed.
摘要:
A metal working oil composition, comprising, as a component (A), 25 wt. % or more of one or more zinc dithiophosphates represented by the following general formula (1): ##STR1## wherein R.sup.1 to R.sup.4 represent a hydrocarbon group and, if necessary, as a component (B), 0.1 to 50 wt. % of a molybdenum compound.
摘要:
An ultraviolet-hardenable adhesive for bonding a non-water swellable, ophthalmic-lens to a support member, in producing a non-water swellable ophthalmic lens, the adhesive containing at least one photopolymerizing monomer, and at least one photoinitiator, the at least one photopolymerizing monomer being selected from the group consisting of acrylates or methacrylates represented by following general formulas (I) and (II): ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen or methyl,R.sub.3 is hydrogen or methyl,m is a positive integer from 2 to 20, andn is a positive integer from 1 to 5.A method of bonding a lens blank to a support member with an adhesive, and a processing of manufacturing a lens using an adhesive, are also disclosed.
摘要:
An ultraviolet-hardenable adhesive for bonding a non-water swellable, ophthalmic-lens blank to a support member, in producing a non-water swellable ophthalmic lens, the adhesive containing at least one photopolymerizing monomer, and at least one photoinitiator, the at least one photopolymerizing monomer being selected from the group consisting of acrylates or methacrylates represented by following general formulas (I) and (II): ##STR1## , wherein R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen or methyl,R.sub.3 is hydrogen or methyl,m is a positive integer from 2 to 10, andn is a positive integer from 1 to 5.A method of bonding a lens blank to a support member with an adhesive, and a processing of manufacturing a lens using an adhesive, are also disclosed.
摘要:
An automatic original feeding apparatus has a coordinates position detecting device provided with a supporting table for supporting thereon a sheet original of which the area during image formation is to be designated, a conveying device for directing the inserted sheet original to a predetermined position, and a feed device provided upstream of the conveying device and responsive to the termination of the area designation to change over to a feeding position and feed the sheet original on the supporting table to the conveying device.