# US 5,703,669 A · Sunglasses including quick release lens retainer #5

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- Number: US 5,703,669 A
- Document ID: US5703669A
- Status: Granted
- Kind: A
- Application number: 08/617,298
- Filed: 1996-03-18
- Granted: 1997-12-30
- Earliest claimed: 1996-03-18
- Inventors: James S. Park
- Web page: https://patentgrep.com/patent/US5703669A

## CPC

- G02C 5/126: {exchangeable or otherwise fitted to the shape of the nose}
- G02C 1/04: Bridge or browbar secured to or integral with partial rims, e.g. with partially-flexible rim for holding lens
- G02C 7/10: Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C 2200/08: Modular frames, easily exchangeable frame parts and lenses
- 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 interchangeable sunglass system includes a frame, a first arm, a second arm, a quick release lens retainer, a soft nose piece, and a tinted lens. The frame has a first end, a second end, a top surface, and a bottom surface. An angled slot is formed in substantially the length of the bottom surface of the frame to accommodate the quick, and easy change of different tinted lenses. The angled slot allows a the tinted lens to angle inward toward the cheek of the user and allow the bottom of the tinted lens to rest close to the cheeks of the user. The first and second arms are pivotally connected to the frame. The quick release lens retainer includes a stem, a first leg, and a second leg. The stem extends downward from the frame. The soft nose piece is sized to be received between the first and second legs of the quick release lens retainer. Both cross sections of the length and the height of the tinted lens have the shape of a curvature. The tinted lens is removed by compressing the first and second legs of the quick release lens retainer with the thumb and fore finger until the tinted lens can be lifted above the quick release lens retainer. The tinted lens is inserted by compressing the quick release lens retainer and slipping the tinted lens into the angled slot and pushing the tinted lens on to the quick release lens retainer.

## Claims

### Claim 1

An interchangeable sunglass system for use in different light conditions comprising:
a frame having a first end, a second end, a top surface, and a bottom surface, said frame having an angled slot which is formed in substantially the length of said bottom surface of said frame, said frame having a cavity which is formed in substantially the middle of said frame;
a first arm having a first end and a length, said first end of said first arm being pivotally connected to said first end of said frame;
a second arm having a first end and a length, said first end of said second arm being pivotally connected with said second end of said frame;
a tinted lens having a top edge and a bottom edge, and an inverted U shaped notch formed at substantially the middle of said bottom edge, said tinted lens fitting into said angled slot of said frame;
a quick release lens retainer having a first leg and a second leg forming an inverted U shaped nose bridge and a stem extending from said inverted U shaped nose bridge, said stem being firmly retained in said cavity, said inverted U shaped notch of said tinted lens fitting over the inverted U shaped nose bridge of said quick release lens retainer and being retained thereby; and
wherein said tinted lens is removed from said frame by compressing said first leg and said second leg of said quick release lens retainer with a thumb and a fore finger, and lifting said tinted lens over said quick release lens retainer; and
wherein said stem extending from the cavity of said frame and bending at an acute angle from a line perpendicular to said bottom surface of said frame so that said tinted lens being retained by said angled slot and said legs at the same acute angle and substantially parallel with the stem of said quick release lens retainer.

### Claim 2 (depends on 1)

The interchangeable sunglass system for use in different light conditions of claim 1, further comprising:
said tinted lens having a thickness, a length and, a height, the cross section of said length having a curvature, the cross section of said height having a curvature, said top edge of said tinted lens having a curvature across the length thereof;
a first groove in said first leg of said quick release tinted lens retainer; and
a second groove in said second leg of said quick release lens retainer, the thickness around the circumference of said inverted U shaped notch of said tinted lens fitting into said first and second grooves of said quick release lens retainer, said tinted lens being retained in said frame thereby.

### Claim 3 (depends on 1)

The interchangeable sunglass system for use in different light conditions of claim 1, further comprising:
said top surface of said frame being substantially wide such that said top surface of said frame being less than 3/16 of an inch away from the forehead of a user, said top surface of said frame protecting a user's eyes from sunlight that comes from above.

### Claim 4 (depends on 1)

The interchangeable sunglass system for use in different light conditions of claim 1, further comprising:
a soft nose piece which is attached to said quick release lens retainer.

### Claim 5 (depends on 1)

The interchangeable sunglass system for use in different light conditions of claim 1, further comprising:
a first projection extending outward from said first leg of said quick release lens retainer; and
a second projection extending outward from said second leg of said quick release lens retainer.