Sun shield system for protecting the eyes from UV and infrared components of sunlight
Patent 5614963 Issued on March 25, 1997. Estimated Expiration Date: 
September 15, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 15, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3171869 3195145 3226729 Side and corner glare eye shade Sun visor Laminated high correction eyeglass lens Ultraviolet blocking agents for contact lenses Visual apparatus Eye-shielding glasses Ultraviolet radiation and blue light blocking polarizing lens InventorApplicationNo. 528613 filed on 09/15/1995US Classes:351/47, Removable and/or adjustable filters or screens (e.g., clip-on type)2/13, Spectacle attachments351/44, With antiglare or shading351/57With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments)ExaminersPrimary: Dang, Hung XuanAttorney, Agent or FirmInternational ClassesG02C 009/00G02C 007/10 G02C 007/08 AbstractAn eyeglass system comprising sunglasses or prescription eyeglasses and a detachable ultraviolet, infrared sun shield in one combined unit. The present invention is particularly directed towards a lightweight sun shield system for people who wear prescription eyeglasses. The sun shield component attaches to a slightly modified standard-style eyeglass frame (which thus can be fitted with standard size and shape prescription lenses) and provides further protection against ultraviolet and infrared rays as well as some protection from dust, debris, etc.Field of SearchWith antiglare or shadingRemovable and/or adjustable filters or screens (e.g., clip-on type) Spring biased With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments) Spring biased or secured by friction members SPECTACLES AND EYEGLASSES Combined Hat or cap attachments Shades Spectacle attachments | |
