Younger Mfg. Co.

Younger Manufacturing Co., Inc.

Younger Mfg. Co. Dba Younger Optics

Russell E Evans

Thomas A Balch

Nancy L S Yamasaki

Edward A Beeloo

Gregory Alan Rook

Nancy L Yamasaki

Optical-quality polarized parts and methods for manufacturing the optical parts are disclosed. The optical-quality polarized parts comprise a high impact, lightweight, high optical quality polyurethane construct and a polarizer bonded to the construct. The construct may be a lens substrate wherein the polarizer is integrally bonded at or near the front surface of the lens substrate. A sidefill gasket may be used to support and position the polarizer within a mold cavity for reproducibly forming the optical part. The polarizer may comprise a polyethylene terephthalate film or a laminated polyvinyl alcohol film or wafer. The polarized optical part- has improved impact resistance over conventional thermoset resin parts, as well as better optical properties than similarly impact-resistant polycarbonate constructs.

Method of manufacturing optical-quality polarized part incorporating high-impact polyurethane-based material

Optical-quality polarized parts and methods for manufacturing the optical parts are disclosed. The optical-quality polarized parts comprise a high impact, lightweight, high optical quality polyurethane construct and a polarizer bonded to the construct. The construct may be a lens substrate wherein the polarizer is integrally bonded at or near the front surface of the lens substrate. A sidefill gasket may be used to support and position the polarizer within a mold cavity for reproducibly forming the optical part. The polarizer may comprise a polyethylene terephthalate film or a laminated polyvinyl alcohol film or wafer. The polarized optical part has improved impact resistance over conventional thermoset resin parts, as well as better optical properties than similarly impact-resistant polycarbonate constructs.

Polarized optical part using high impact polyurethane-based material

An optical-quality part such as an ophthalmic lens is provided having a PET polarizing film integrally bonded thereto and, optionally, a hard coating integrally bonded to either the PET polarizing film or to the optical construct containing the PET polarizing film. In a preferred construction, the lens material or film may be surface treated, either physically and/or chemically, for integrally bonding the film to the lens material. Similarly, in another preferred construction, the film may be physically and/or chemically surface treated for integrally bonding a hard coating to the PET film.

Ophthalmic lenses utilizing polyethylene terephthalate polarizing films

An optical-quality plastic part is provided having a PET polarizing film formed to contour with the optical requirements of the plastic construct without jeopardizing its optical, mechanical or cosmetic properties.

Formed polyethylene terephthalate polarizing film for incorporation in optical-grade plastic parts

An optical-quality plastic part is provided having a PET polarizing film integrally bonded thereto and, optionally, a hard coating integrally bonded to the PET polarizing film. In a preferred construction, the film may be surface treated, either physically and/or chemically, for integrally bonding the film to the optical-quality plastic material. Similarly, in another preferred construction, the film may be physically and/or chemically surface treated for integrally bonding a hard coating to the PET film. In either construction, the treatment may be effected by light irradiation.

Treated polyethylene terephthalate polarizing films for improved adhesion in optical plastics

Unique side-fill mold assembly and method for making a lens wherein the mold assembly includes a gasket having a plurality of side port holes which allow filling of the mold assembly with a thermosetting resin and allow egress of air trapped within the mold assembly.

Method for side-fill lens casting

An ophthalmic lens is provided having a PET polarizing film integrally bonded thereto and, optionally, a hard coating integrally bonded to the PET polarizing film. In a preferred construction, the lens material may be surface treated, either physically and/or chemically, for integrally bonding the film to the lens material. Similarly, in another preferred construction, the film may be physically and/or chemically surface treated for integrally bonding a hard coating to the PET film.

A device for demonstrating the effect of glare and its reduction in which light is reflected onto a glare panel, to reflect therefrom at an angle of incidence such that it is horizontally polarized, producing glare to one viewing an underlying graphic but which glare is eliminated by viewing through vertically polarized lenses.

Growing community of inventors

Chino Hills, CA, United States of America

Russell E Evans