Optical device

Patent metadata

Field	Value
Publication number	US-11065468-B2
Application number	US-201515508542-A
Country	US
Kind code	B2
Filing date	Sep 2, 2015
Priority date	Sep 3, 2014
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

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

The invention claimed is:

1. An optical lens configured to be worn by a subject, the optical lens comprising:
an optical substrate provided with an optical spectral filter configured to inhibit transmission of at least one of UV or blue light by inhibiting transmission of wavelengths from 380 nm to 455 nm at an inhibition rate within a range of 20% to 100%,
wherein the optical lens that is configured to be worn by the subject is further configured to allow retinal exposure of an eye of the subject through the optical lens to at least one range of wavelengths in visible light spectrum wavelengths of 460 nm to 530 nm, and
wherein the optical filter is configured to selectively transmit light within the at least one range of wavelengths selected with an average light transmittance value greater than or equal to 50%.

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

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

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

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

6. The optical lens according to claim 1 , wherein the optical filter comprises at least one of a dye or one pigment configured to allow transmission of the at least one range of wavelengths selected.

7. The optical lens according to claim 1 , wherein the optical filter comprises interferential filtering means configured to allow transmission of the at least one range of wavelengths selected.

8. A method for preventing or treating chronobiological disorders, the method comprising:
exposing an eye of the subject suffering from chronobiological disorders in need thereof to a source of light; and
positioning the optical lens of claim 1 between the eye of said subject and the source of light so that at least one range of wavelengths selected from visible light spectrum wavelengths from 460 nm to 530 nm is provided to the eye of said subject by the optical device with an average light transmittance value greater than or equal to 50%.

9. A method for controlling the constriction of the pupil of an eye, the method comprising:
exposing the eye of the subject in need thereof to a source of light; and
positioning the optical lens of claim 1 between the eye of said subject and the source of light so that at least one range of wavelengths selected from visible light spectrum wavelengths from 460 nm to 530 nm is provided to the eye of said subject by the optical device with an average light transmittance value greater than or equal to 50%.

10. The optical lens according to claim 1 , wherein the lens is selected from the group consisting of ophthalmic lens, semi-finished lens, contact lens, and intraocular lens.

11. An optical lens configured to be worn by a subject, the optical lens comprising:
an optical substrate provided with a single optical filter operating as a Fabry-Pérot bandpass filter constituted by two dielectric mirrors, separated by a cavity having an optical thickness of a multiple of a half-wave of the central wavelength, a central wavelength λ0 of the Fabry-Perot bandpass filter being comprised between 480 nm and 510 nm,
wherein the optical lens configured to be worn by the subject is configured to allow transmission of wavelengths in a range of 460 nm to 530 nm through the optical lens and to inhibit transmission of wavelengths from 380 nm to 455 nm through the optical lens.

12. The optical lens according to claim 11 , wherein the optical lens is configured to selectively transmit light within the at least one range of wavelengths selected with an average light transmittance value greater than or equal to 50%.

Assignees

• Essilor Int

Inventors

• Barrau Coralie
• Villette Thierry

Classifications

• G02B5/223 Primary

  containing organic substances, e.g. dyes, inks or pigments · 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

• G02C7/104

  having spectral characteristics for purposes other than sun-protection · CPC title

• G02B5/28

  Interference filters · CPC title

• A61N5/0613 Primary

  Apparatus adapted for a specific treatment · CPC title