# US 10,642,071 B2 · Tinted polarized lenses having selective frequency filtering

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,642,071 B2
- Document ID: US10642071B2
- Status: Granted
- Kind: B2
- Application number: 15/895,827
- Filed: 2018-02-13
- Published: 2018-06-21
- Granted: 2020-05-05
- Earliest claimed: 2014-08-08
- Assignees: Smith Optics, Inc.
- Applicants: Smith Optics, Inc.
- Inventors: Eric Carlson; Scott MacGuffie
- Web page: https://patentgrep.com/patent/US10642071B2

## CPC

- G02C 7/10: Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02B 1/08: made of polarising materials
- G02B 5/3033: {in the form of a thin sheet or foil, e.g. Polaroid}
- G02C 7/108: {Colouring materials}
- G02C 7/12: Polarisers
- G02C 7/102: {Photochromic filters}
- G02C 2202/16: Laminated or compound 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)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

Tinted lenses for attenuating ambient light, reducing glare, and improving color discrimination for a user are disclosed. In some embodiments, the lens has uniform transmittance across the visible spectrum with selective filtering of light at 480 nm and 580 nm. In some embodiments, the lens may reduce light in the blue region of the spectrum while maintaining color discrimination. In some embodiments, the level of attenuation provided by the lens may vary based on the intensity of light present while maintaining selective filtering at 480 nm and 580 nm.

## Claims

### Claim 1

A lens, comprising:
a lens wafer;
a compound incorporated into the lens wafer or coating a surface of the lens wafer; and
wherein the compound is configured to impart light transmittance characteristics such that the lens will exhibit a light transmittance at 450 nm that is greater than the transmittance at 480 nm, a light transmittance at 510 nm that is greater than the light transmittance at 480 nm, 580 nm, and 600 nm, and a light transmittance at 600 nm that is greater than the light transmittance at 580 nm and 480 nm, when light is transmitted through the lens wafer and the compound.

### Claim 2 (depends on 1)

The lens of claim 1, wherein the compound is further configured to impart light transmittance characteristics to the lens such that the lens does not transmit any light below 400 nm.

### Claim 3 (depends on 2)

The lens of claim 2, wherein light transmittance is less than 20% from 300 nm to 650 nm.

### Claim 4 (depends on 2)

The lens of claim 2, wherein the light transmittance is less than 20% from 300 nm to 500 nm.

### Claim 5 (depends on 2)

The lens of claim 2, wherein the light transmittance at 450 nm that is greater than the light transmittance at 510 nm.

### Claim 6 (depends on 2)

The lens of claim 2, wherein the light transmittance at 600 nm that is greater than the light transmittance at 510 nm.

### Claim 7 (depends on 2)

The lens of claim 2, wherein the overall light transmittance is less than 10% from 300 nm to 500 nm.

### Claim 8 (depends on 2)

The lens of claim 2, wherein the compound is incorporated into the lens wafer.

### Claim 9 (depends on 2)

The lens of claim 2, wherein the light transmittance is greater than 20% at wavelengths greater than 600 nm.

### Claim 10 (depends on 1)

The lens of claim 1, wherein the light transmittance is less than 20% from 300 nm to 500 nm.

### Claim 11 (depends on 10)

The lens of claim 10, wherein light transmittance is less than 20% from 300 nm to 650 nm.

### Claim 12 (depends on 10)

The lens of claim 10, wherein the light transmittance at 600 nm at is greater than the light transmittance at 510 nm.

### Claim 13 (depends on 10)

The lens of claim 10, wherein the compound coats a surface of the lens wafer.

### Claim 14 (depends on 10)

The lens of claim 10, wherein the light transmittance is less than 30% at wavelengths lower than 700 nm.

### Claim 15 (depends on 1)

The lens of claim 1, wherein the overall light transmittance is less than 10% at 580 nm.

### Claim 16 (depends on 1)

The lens of claim 1, wherein the overall light transmittance is greater than 10% at 480 nm.

### Claim 17 (depends on 1)

The lens of claim 1, wherein the light transmittance at 600 nm that is greater than the light transmittance at 450 nm.

### Claim 18 (depends on 1)

The lens of claim 1, wherein the light transmittance is greater than 15% at wavelengths greater than 600 nm.

### Claim 19

A lens, comprising:
a lens wafer;
a compound incorporated into the lens wafer or coating a surface of the lens water; and
wherein the compound is configured to impart light transmittance characteristics such that the lens will exhibit a light transmittance at 450 nm that is greater than the transmittance at 480 nm, a light transmittance at 510 nm that is greater than the light transmittance at 480 nm, and a light transmittance at 600 nm that is greater than the light transmittance at 580 nm, wherein the light transmittance at 480 nm is less than the light transmittance at 580 nm, when light is transmitted through the lens wafer and the compound.

### Claim 20

A lens, comprising:
a lens wafer;
a compound incorporated into the lens wafer or coating a surface of the lens wafer; and
wherein the compound is configured to impart light transmittance characteristics such that the lens will exhibit a light transmittance at 450 nm that is greater than the transmittance at 480 nm, a light transmittance at 510 nm that is greater than the light transmittance at 480 nm and 580 nm, and a light transmittance at 600 nm that is greater than the light transmittance at 480 nm and 580 nm, when light is transmitted through the lens wafer and the compound.