Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding. The additives may be used to adapt a PC resin customarily used for sun protection lenses for clear lens applications.

Embodiments of the disclosure relate to a series of PC resin additives for maintaining the color stability and blue-cut performance during injection molding. The additives may be used to adapt a PC resin customarily used for sun protection lenses for clear lens applications.

An optical lens assembly includes at least one lens element, which is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light absorbing portion is annular and surrounds a central axis, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, the dual molded lens element is made by an injection molding method and formed integrally, the light absorbing portion includes a plurality of second inner strip-shaped structures, the second inner strip-shaped structures are regularly arranged along a circumferential direction of the central axis, and the second inner strip-shaped structures are disposed correspondingly to and connected to a plurality of first inner strip-shaped structures.

Provided are a polycarbonate resin composition comprising a polycarbonate resin, pentaerythritol tetrastearate, a black dye, and a blue dye, and an optical molded product comprising same.

Examples include a device including a nanovoided polymer element having a first surface and a second surface, a first plurality of electrodes disposed on the first surface, a second plurality of electrodes disposed on the second surface, and a control circuit configured to apply an electrical potential between one or more of the first plurality of electrodes and one or more of the second plurality of electrodes to induce a physical deformation of the nanovoided polymer element.

The present invention relates to a production method of a poly(ester)carbonate, including subjecting a diol and a carbonate ester to a transesterification reaction in the presence of a catalyst, wherein the catalyst comprises aluminum or a compound thereof, and a phosphorus compound.

A method for producing an optical component, the method including: a step of injecting a polymerizable composition including a polythiol component and a polyisocyanate component into a molding die using a tube; and a step of polymerizing the polymerizable composition, wherein a percentage content of a plasticizer in the tube is 20% by mass or less.

A method for producing an optical component, the method including: a step of injecting a polymerizable composition including a polythiol component and a polyisocyanate component into a molding die using a tube; and a step of polymerizing the polymerizable composition, wherein a percentage content of a plasticizer in the tube is 20% by mass or less.

Disclosed are optical elements that contains two or more near infrared absorbers and methods of producing the same. Two near infrared absorbers with different near infrared wavelengths absorption ranges and residual colors are mixed with a precursor of an optical substrate. The resulting mixture is subsequently processed to produce optical elements that have a broad near infrared wavelength absorption range and a neutral residual color.

Composite materials, specifically to materials used in medicine, in particular, in ophthalmology for the manufacturing of optical ophthalmic implants, mainly intraocular lenses (IOL), intended for vision correction after cataract removal. The polymerization rate of the material is controlled in order to eliminate defects in the ophthalmic implant profile, control the geometric dimensions, reduce the finished product glistening while keeping optimal physical and mechanical properties. The material for the manufacturing of ophthalmic implants by photo-polymerization method includes: a) 60-70 wt. % oligomer of urethanedi(meth)acrylate with terminal (meth)acrylate fragments; b) 20-40 wt. % of (meth)acrylate monomers with aromatic substituents in the side chain; c) 5-25 wt. % of (meth)acrylate monomers with aliphatic branched substituents in the side chain; d) at least 0.2 wt. % of a UV-absorbing component; e) 0.1 to 1 wt. % of photopolymerization initiator; and f) 0.005 to 0.5 wt. % of a radical polymerization inhibitor.