Removable nosepiece for a unitary lens

• US 5,757,457 A
• Filed: 04/16/1996
• Issued: 05/26/1998
• Est. Priority Date: 10/28/1994
• Status: Expired due to Fees

• Current Assignee: Luxottica Leasing S.P.A.
• Original Assignee: Bausch & Lomb Incorporated (Bausch Health Cos., Inc.)
• Inventors: Conway, Simon M.
• Primary Examiner(s): Dang, Hung X.
• Application Number:
  US08/633,383
• Time in Patent Office: 770 Days
• Field of Search: 351/138, 351/137, 351/136, 351/41, 351/44
• US Class Current: 351/138
• CPC Class Codes: A61F 9/02 Goggles breathing masks A62B18/00; swimming goggles A63B33/002; diving masks B63C11/12
• CPC Class Codes: A61F 9/025 Special attachment of screens, e.g. hinged, removable; Roll-up protective layers
• CPC Class Codes: G02C 1/02 Bridge or browbar secured to lenses without the use of rims
• CPC Class Codes: G02C 2200/08 Modular frames, easily exchangeable frame parts and lenses
• CPC Class Codes: G02C 5/00 Constructions of non-optical parts
• CPC Class Codes: G02C 5/10 Intermediate bars or bars between bridge and side-members
• CPC Class Codes: G02C 5/126 exchangeable or otherwise fitted to the shape of the nose

Abstract

A unique unitary lens for eyewear includes right and left lens regions formed of substantially spherical portions. The lens provides improved aerodynamics, aesthetic appearance and eye protection for sport eyewear applications.

Claims

1. A nosepiece for a unitary lens comprising:

a) a top portion having opposite front and rear surfaces and right and left sides;

b) first and second legs each having opposite front and rear surfaces, said first and second legs extending downwardly from said right and left sides of said top portion, respectively, said first and second legs and said top portion together forming a central nosepiece opening, the junctures of said top portion and each of said legs being indented such that the width w₁ of said nosepiece opening at said top is larger than the width w₂ of said nosepiece opening adjacent said junctures;

c) first and second grooves formed in said first and second legs between said front and rear surfaces thereof, respectively, for receiving an edge of said unitary lens, said first and second grooves extending along said first and second legs, respectively, from a point below said junctures with respect to said top portion.

2. The nosepiece of claim 1, wherein said legs gradually flare outwardly with respect to each other as they extend away from said top portion.

3. The nosepiece according to claim 1, and further including first and second wing portions attached to said rear portions of said first and second legs, respectively, said wing portions being configured for resting on the nose of the wearer.

4. The nosepiece of claim 1, and further comprising an abutment face having opposite front and rear surfaces, said abutment face attached to said rear surface of said top portion and extending above said top portion in a direction opposite to said first and second legs, said front surface of said abutment face and said front surface of said top portion lying in spaced, substantially parallel planes.

5. The nosepiece of claim 4 wherein said edge of said unitary lens has opposite front and rear surfaces, and wherein said front surface of said abutment face engages said rear surface of said lens edge, and said front surface of said top portion lies substantially flush with said front surface of said lens edge, upon attaching said nosepiece to said unitary lens.

6. The nosepiece of claim 1 wherein said first and second grooves each have a substantially smooth bottom surface.

7. The nosepiece of claim 6 wherein said bottom surfaces of said first and second grooves are arcuately shaped.