# US 6,719,424 B1 · Lens attachment for eyeglasses

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- Number: US 6,719,424 B1
- Document ID: US6719424B1
- Status: Granted
- Kind: B1
- Application number: 10/425,197
- Filed: 2003-04-30
- Granted: 2004-04-13
- Earliest claimed: 2003-04-30
- Inventors: Phillip B. Shin
- Web page: https://patentgrep.com/patent/US6719424B1

## CPC

- G02C 9/00: Attaching auxiliary optical parts (auxiliary optical parts per se G02C7/08 - G02C7/16)
- G02C 7/086: {Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles}
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

An auxiliary lens apparatus for use with eyeglasses and sunglasses having two main lenses with respective convex and concave surfaces. The apparatus comprises two lenses each held within the individual rims of eyeglass frames and a nose bridge to join the two. A generally u-shaped clip with an integrally formed grooved seat and a rear flexible spur angled to abut the convex surfaces of each main lens is provided in combination with each auxiliary lens to fixably secure the auxiliary lenses to the eyeglasses. The un-shaped clip formed in combination with each auxiliary lens is situated to take into account the focal point of the wearer's eyes, which is located at a certain distance forward of the position of the clip, to prevent the obscuring of the wearer's vision.

## Claims

### Claim 1

A lens apparatus for use with eyeglasses having a first main lens and a second main lens with respective convex and concave surfaces and a nose bridge, comprising:
a first auxiliary lens and a second auxiliary lens;
a first frame member to hold said first auxiliary lens having a first rim with a top bar and a bottom curved member and a second frame member to hold said second auxiliary lens having a first rim with a top bar and a bottom curved member;
a bridge member to join said first frame member and said second frame member; and,
a generally u-shape clip with an integrally formed grooved seat and a rear flexible spur angled acutely for abutting engagement with each of said first and second main lenses, respectively, and seating said first and second main lenses to fixably secure said lens apparatus to said eyeglasses.

### Claim 2 (depends on 1)

The invention of claim 1 wherein said nose bridge is curved.

### Claim 3 (depends on 1)

The invention of claim 1 wherein said first auxiliary lens is maintained in spaced apart relation from said concave surface of said first main lens and said second auxiliary lens is maintained in spaced apart relation from said concave surface of said second main lens to preclude against undermining the visual efficacy of said first and second main lenses.

### Claim 4 (depends on 3)

The invention of claim 3 wherein said bottom curved member of said first frame member and said bottom curved member of said second frame member abut the concave surfaces of said first and second main lenses, respectively, to maintain separation between said first auxiliary lens from said first main lens and said second auxiliary lens from said second main lens.

### Claim 5 (depends on 1)

The invention of claim 1 wherein said first and second auxiliary lenses are magnifiers.

### Claim 6 (depends on 1)

The invention of claim 1 wherein said frame members are comprised of a synthetic material.

### Claim 7 (depends on 1)

The invention of claim 1 wherein said frame members are comprised of metal.

### Claim 8 (depends on 1)

The invention of claim 1 wherein said generally u-shape clip members are situated to minimize obscuring vision through said first and second main lenses.

### Claim 9 (depends on 1)

The invention of claim 1 wherein said generally u-shape clip and said flexible rear spur integrally formed therewith are adapted to accommodate eyeglasses of various shapes and sizes.

### Claim 10 (depends on 1)

The invention of claim 1 wherein the generally u-shape clip is situated to take into account the focal point of the eyes, which is located at a distance forward of said clip, to prevent the obscuring of vision.

### Claim 11 (depends on 1)

The invention of claim 1 wherein said top bar of said first frame member and said top bar of said second frame member abut said first and second main lenses, respectively, to join and cooperate with said generally u-shape clip to fixably secure said lens apparatus to said eyeglasses.