Nancy L Yamasaki

US Patent:

20020090516, Jul 11, 2002

Filed:

Jan 3, 2002

Appl. No.:

10/037673

Inventors:

Igor Loshak - Redondo Beach CA, US
Ahmad Barzak - Paramount CA, US
Nancy Yamasaki - Long Beach CA, US
Edward Beeloo - Torrance CA, US

International Classification:

B32B027/36

US Classification:

428/412000

Abstract:

Methods for improved adhesion of an optical coating to a polarizing film incorporated onto an optical-quality plastic construct are disclosed. Preferred methods include treating a surface of the film by mechanical and/or chemical means and applying an optical coating to the treated film for effecting a coated, polarized optical-quality plastic part. Such mechanical and chemical means include exposing the polarizing film to a caustic solution at a concentration greater than or equal to 10%, roughening the surface of the film in a uniform manner, and utilizing plasma exposure to peen the surface and then chemically modify it. A particularly preferred technique involves uniform physical roughening, namely, forming grooves having a substantially uniform direction substantially aligned with the axis of light absorption, exposing this roughened surface to a caustic solution having a concentration of 10% or greater, and then dipping the roughened surface into an overcoat solution and withdrawing it substantially perpendicular to the direction of the grooves.

US Patent:

20040017610, Jan 29, 2004

Filed:

Jul 21, 2003

Appl. No.:

10/624925

Inventors:

Russell Evans - Chino Hills CA, US
Thomas Balch - Rancho Palos Verdes CA, US
Nancy Yamasaki - Long Beach CA, US

International Classification:

G02B005/30
G02B027/28

US Classification:

359/490000

Abstract:

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.

US Patent:

20040246437, Dec 9, 2004

Filed:

Jun 6, 2003

Appl. No.:

10/455943

Inventors:

David Ambler - Rancho Palos Verdes CA, US
Thomas Balch - Rancho Palos Verdes CA, US
Nancy Yamasaki - Long Beach CA, US

International Classification:

G02C007/10

US Classification:

351/163000

Abstract:

An eyewear lens provides for selective spectral performance in response to varying light conditions, including both changes in intensity and spectral distribution. The lens responds selectively to both ultraviolet and visible light, and exhibits different spectral transmittance characteristics under different lighting conditions, to provide for better vision for a wearer. In addition to this active response, the lens also may include a polarizer to further control light and to minimize the glare that interferes with clear vision.

US Patent:

20040262791, Dec 30, 2004

Filed:

Jun 20, 2003

Appl. No.:

10/601087

Inventors:

Jotinderpal Sidhu - Irvine CA, US
Andrew McKenzie - Long Beach CA, US
Ahmad Barzak - Paramount CA, US
Nancy Yamasaki - Long Beach CA, US

International Classification:

B29D011/00
H05B006/64
B29C045/14

US Classification:

264/001310, 264/265000, 264/478000, 264/492000, 264/489000, 264/491000, 264/494000, 264/001700, 264/001360, 264/001380

Abstract:

A method is disclosed for pre-conditioning inserts for improved replication during injection molding. The pre-conditioned inserts provide improved bonding with the injection-material and improved replication of complex molding surfaces. The pre-conditioning of the inserts comprises placing the insert in position against the molding surface, followed by heat-soaking the insert. Heat-soaking can be accomplished using infrared energy, preferably broadband infrared energy or energy that is preferentially absorbed by the insert.

US Patent:

20110187993, Aug 4, 2011

Filed:

Jan 29, 2010

Appl. No.:

12/697060

Inventors:

José Alonso Fernández - Madrid, ES
Daniel Crespo Vázquez - Madrid, ES
Thomas A. Balch - Ranchos Palos Verdes CA, US
Nancy L.S. Yamasaki - Long Beach CA, US

International Classification:

G02C 7/06

US Classification:

351169

Abstract:

The present invention is embodied in ophthalmic lenses having a first lens surface that is described by a continuous, gradual increase in optical power that proceeds without inflection points of discontinuities across substantially the entire useable optical area of this lens surface, and an opposite surface of the lens configured to cooperate with the power gradation of the first surface to provide a desired prescription, including at least one stabilized area of optical power. The power gradation of the first surface increases from one edge of the useable area to substantially the opposite edge, and may increase according to linear or non-linear relationships. In another preferred embodiment, the two lens surfaces cooperate to create two stabilized areas of optical power, for a prescription with near-viewing and distance-viewing values.

US Patent:

20010028436, Oct 11, 2001

Filed:

Apr 9, 2001

Appl. No.:

09/832083

Inventors:

Russell Evans - Chino Hills CA, US
Thomas Balch - Rancho Palos Verdes CA, US
Edward Beeloo - Torrance CA, US
Nancy Yamasaki - Long Beach CA, US

Assignee:

Younger Mfg. Co. DBA Younger Optics

International Classification:

B29D011/00
G02B001/08

US Classification:

351/163000, 264/001320, 264/001360, 264/001380, 264/001700

Abstract:

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.