US 10,881,755 B2Granted

Ultraviolet illumination with optical elements

AssigneeSensor Electronic Technology, Inc.

InventorsAlexander Dobrinsky, Maxim S. Shatalov

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Abstract

Ultraviolet illumination with optical elements to irradiate objects and/or fluid for purposes of sterilization, disinfection, and/or cleaning. The objects and/or fluid can be irradiated using an ultraviolet illuminator having at least one ultraviolet light emitting source. An ultraviolet transparent housing encapsulates the at least one ultraviolet light emitting source. The ultraviolet transparent housing includes an ultraviolet transparent material that emits ultraviolet light from the at least one ultraviolet light emitting source while preventing humidity from penetrating the ultraviolet transparent housing and damaging the at least one ultraviolet light emitting source. At least one ultraviolet transparent optical element is located about the ultraviolet transparent housing interspersed with the ultraviolet transparent material.

Claims20

Dependent claims

A system, comprising:

at least one ultraviolet light emitting source having at least one light emitting side;
an ultraviolet transparent housing that encapsulates the at least one ultraviolet light emitting source, the ultraviolet transparent housing including an ultraviolet transparent material that transmits ultraviolet light from the at least one ultraviolet light emitting source while preventing humidity from penetrating the ultraviolet transparent housing and damaging the at least one ultraviolet light emitting source, wherein the ultraviolet transparent housing comprises ultraviolet transparent domains forming depressions sunken below an external surface area of the ultraviolet transparent housing to define ultraviolet transparent cellular windows, at least some of the ultraviolet transparent cellular windows having an ultraviolet transparent media enclosed by supporting walls that extend from the sunken depression up to the external surface area of the ultraviolet transparent housing, the ultraviolet transparent domains forming a set of structural elements that provide structural support of the housing to resist a change in shape of the housing;
and
at least one ultraviolet transparent optical element located about the ultraviolet transparent housing interspersed with the ultraviolet transparent material.

1 more element

A system, comprising:

a set of ultraviolet light emitting sources each having at least one light emitting side to emit ultraviolet light, wherein at least one of the ultraviolet light emitting sources includes an ultraviolet-C (UV-C) light emitting source;
a cylinder-shaped ultraviolet transparent housing that encapsulates the set of ultraviolet light emitting sources, the ultraviolet transparent housing including:
an ultraviolet transparent material that transmits ultraviolet light from the set of ultraviolet light emitting sources while preventing humidity from penetrating the ultraviolet transparent housing and damaging the set of ultraviolet light emitting sources;
ultraviolet transparent domains forming depressions sunken below an external surface area of the ultraviolet transparent housing to define ultraviolet transparent cellular windows, at least some of the ultraviolet transparent cellular windows having an ultraviolet transparent media enclosed by supporting walls that extend from the sunken depression up to the external surface area of the ultraviolet transparent housing, the ultraviolet transparent domains forming a set of structural elements that provide structural support of the housing to prevent a change in shape of the housing;
and
a reflective element positioned within an interior portion of the ultraviolet transparent housing, wherein the reflective element extends axially from one end of the cylinder-shaped ultraviolet transparent housing to an opposing end.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/236,870Filed 31 Dec 2018 · us provisional application
Priority: 31 Dec 2017
Published: US 2019/0201570 A14 Jul 2019
Granted: 5 Jan 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

A61L 2/24
Disinfection or sterilisation of materials or objects, in general; Accessories therefor: apparatus using programmed or automatic operation
A23B 2/53
By irradiation without heating: with ultraviolet light
A23B 7/015
Preservation of fruit or vegetables; Chemical ripening of fruit or vegetables: preserving by irradiation or electric treatment without heating effect
A61L 2/10
Radiation: ultraviolet [UV] radiation