Optically corrected goggle
Patent 6009564 Issued on January 4, 2000. Estimated Expiration Date: 
June 24, 2018. 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.
June 24, 2018. 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 ReferencesInventorsApplicationNo. 103799 filed on 06/24/1998US Classes:2/436, By ventilation of shield351/62, With moisture prevention or absorption351/158, Combined359/646Having two componentsExaminersPrimary: Nerbun, PeterAttorney, Agent or FirmForeign Patent References
International ClassesA61F 009/02G02C 003/02 G02C 007/02 AbstractA goggle is provided with double unitary lenses, separated by an insulating space to reduce fogging. At least one of the lenses is tapered to reduce prismatic distortion through the lens in an as-worn orientation. In an exemplary goggle, the tapering of one lens compensates for prismatic distortion and/or astigmatism introduced by the other of the lenses. The lenses are mounted in a goggle frame in a predetermined orientation with respect to a wearer's normal lines of sight. In one embodiment, the optical centerline or axis of the double lens system is aligned to be parallel with the wearer's normal lines of sight in the as-worn orientation. Method of manufacturing such lenses is also provided. The illustrated goggle defines an enclosed space between the inner lens and the wearer's face when worn, but includes ventilation to the enclosed space to allow moisture to escape.Other References
Field of SearchHaving antifog shield or lensBy ventilation of shield Via tortuous air path Goggles Included in shield for face Included in shield for eyes Having antiglare shield or lens Having unitary frame Having frame for each eye Detachable lens-mounting Having wide-angle lens SPECTACLES AND EYEGLASSES With antiglare or shading With moisture prevention or absorption Combined Ophthalmic lenses or blanks With prismatic segment Prismatic type Having two components Having two components | |
