CA2238832A1 - Sport sunglasses resistant to fogging - Google Patents

Sport sunglasses resistant to fogging

Info

Publication number
CA2238832A1
CA2238832A1 CA002238832A CA2238832A CA2238832A1 CA 2238832 A1 CA2238832 A1 CA 2238832A1 CA 002238832 A CA002238832 A CA 002238832A CA 2238832 A CA2238832 A CA 2238832A CA 2238832 A1 CA2238832 A1 CA 2238832A1
Authority
CA
Canada
Prior art keywords
wearer
lenses
glasses
fogging
frame front
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002238832A
Other languages
French (fr)
Other versions
CA2238832C (en
Inventor
Jerome Jacques Marie Mage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spy Optic Inc
Original Assignee
Spy Optic, Inc.
Jerome Jacques Marie Mage
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/565,623 external-priority patent/US5610668A/en
Application filed by Spy Optic, Inc., Jerome Jacques Marie Mage filed Critical Spy Optic, Inc.
Publication of CA2238832A1 publication Critical patent/CA2238832A1/en
Application granted granted Critical
Publication of CA2238832C publication Critical patent/CA2238832C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/08—Anti-misting means, e.g. ventilating, heating; Wipers

Abstract

Protective eyeglasses (e.g., sunglasses) for use in high speed outdoor sports activities the lenses thereof being resistant to condensation, is achieved by air circulation created by venturi effects. The glasses (10) comprise a frame front (20) having middle portions over the wearer's eyes which support protective lenses, and having endpiece portions (30) near the wearer's temples, the outboard edges of which attach temples which hold the glasses in place. A chamber is defined by the volume between the lenses and the wearer's face, and gaps are defined by the distance between the middle portions of the frame front and wearer's face. Apertures (34) in each of the endpiece portions of the front frame define an entrance of a ventilation channel for air flow through the frame front, adjacent to the respective chamber. Venturi forces are created within the ventilation channels to facilitate circulation of air. Improved ventilation, and the reduction or elimination of fogging on the lenses, is accomplished by low-cost and lightweight glasses.
CA002238832A 1995-11-28 1996-11-27 Sport sunglasses resistant to fogging Expired - Fee Related CA2238832C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/565,623 US5610668A (en) 1995-11-28 1995-11-28 Fog-resistant sunglasses incorporating ventilation channels
US08/565,623 1995-11-28
PCT/US1996/019069 WO1997020248A1 (en) 1995-11-28 1996-11-27 Sport sunglasses resistant to fogging

Publications (2)

Publication Number Publication Date
CA2238832A1 true CA2238832A1 (en) 1997-06-05
CA2238832C CA2238832C (en) 2006-03-14

Family

ID=36095775

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002238832A Expired - Fee Related CA2238832C (en) 1995-11-28 1996-11-27 Sport sunglasses resistant to fogging

Country Status (1)

Country Link
CA (1) CA2238832C (en)

Also Published As

Publication number Publication date
CA2238832C (en) 2006-03-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20161128