An optical device

Patent metadata

Field	Value
Publication number	US-2017274221-A1
Application number	US-201515508542-A
Country	US
Kind code	A1
Filing date	Sep 2, 2015
Priority date	Sep 3, 2014
Publication date	Sep 28, 2017
Grant date	—

Abstract

An optical device including an optical substrate providing with an optical filter configured to inhibit transmission of harmful UV and/or blue light wherein the optical device is further configured to allow retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 560 nm, preferably of 480 nm to 520 nm.

First claim

1 . An optical device comprising an optical substrate providing with an optical spectral filter configured to inhibit transmission of harmful UV and/or blue light wherein the optical device is further configured to allow retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 560 nm, preferably of 480 nm to 520 nm.

2 . The optical device according to claim 1 , wherein the optical filter is configured to allow transmission in the visible spectrum outside the selected range of wavelengths at visual transmittance rate of 3% to 43% depending on the level of solar protection required.

3 . The optical device according to claim 1 , wherein the at least one selected range of wavelengths of light is one selected range of wavelengths centered on a wavelength within the range 480 nm to 510 nm.

4 . The optical device according to claim 3 , wherein the at least one selected range of wavelengths of light is one selected range of wavelengths with a bandwidth in a range from 30 nm to 70 nm.

5 . The optical device according to claim 1 , wherein the optical filter is configured to selectively inhibit transmission of wavelengths of incident light within the range 380 nm to 455 nm, preferably 415 nm to 455 nm, at an inhibition rate within the range 20% to 100%, preferably 60 to 100%.

6 . The optical device according to claim 1 , wherein the optical filter is configured to selectively transmit light within the at least one selected range of wavelengths of light with an average light transmittance value greater than or equal to 50% and preferably, greater than 95% and more preferably equal to 100%.

7 . The optical device according to claim 6 , wherein the optical filter comprises at least one dye and/or one pigment configured to allow transmission of the at least one selected range of wavelengths of light.

8 . The optical device according to claim 6 , wherein the optical filter comprises interferential filtering means configured to allow transmission of the at least one selected range of wavelengths of light.

9 . The optical device according to claim 1 wherein the optical filter is further configured to selectively transmit light within the range 560 nm to 600 nm with an average light transmittance value greater than or equal to 50% and preferably equal to 100%.

10 . A method for preventing or treating chronobiological disorders, comprising exposing an eye of a subject in need thereof to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 560 nm provided by the optical device of claim 1 .

11 . A method for controlling the constriction of the pupil of the eye, comprising exposing an eye of a subject in need thereof to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 560 nm provided by the optical device of claim 1 .

12 . The optical device according to claim 1 , wherein the optical device is an optical lens selected among the list of ophthalmic lens, semi-finished lens, contact lens, intraocular lens.

Assignees

• Essilor Int

Inventors

• Barrau Coralie
• Villette Thierry

Classifications

• A61N2005/0662

  Visible light · CPC title

• G02C7/10 Primary

  Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses · CPC title

• G02C2202/10

  Optical elements and systems for visual disorders other than refractive errors, low vision · CPC title

• G02B5/285

  comprising deposited thin solid films (G02B5/281 - G02B5/289 take precedence; multilayered film filters for fibre optic multiplexing G02B6/29361) · CPC title

• G02B5/22

  Absorbing filters {(G02B5/201 - G02B5/208 take precedence)} · CPC title