Fluid-based light guiding structure and fabrication thereof

• US 10,509,162 B2
• Filed: 07/16/2018
• Issued: 12/17/2019
• Est. Priority Date: 09/13/2014
• Status: Active Grant

• Current Assignee: Sensor Electronic Technology Incorporated (Seoul Semiconductor Co., Ltd.)
• Original Assignee: Sensor Electronic Technology Incorporated (Seoul Semiconductor Co., Ltd.)
• Inventors: Dobrinsky, Alexander, Shur, Michael, Gaska, Remigijus
• Primary Examiner(s): Wong, Tina M
• Application Number:
  US16/035,749
• Publication Number:
  US 20180329138A1
• Time in Patent Office: 519 Days
• Field of Search: None
• CPC Class Codes: G02B 1/045 Light guides
• CPC Class Codes: G02B 2006/0325 Fluid core or cladding
• CPC Class Codes: G02B 6/00 Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
• CPC Class Codes: G02B 6/0003 the light guides being doped with fluorescent agents
• CPC Class Codes: G02B 6/0065 Manufacturing aspects; Material aspects
• CPC Class Codes: G02B 6/10 of the optical waveguide type G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00
• CPC Class Codes: G02B 6/102 for infrared and ultraviolet radiation
• CPC Class Codes: G02B 6/1221 made from organic materials
• CPC Class Codes: G02B 6/34 utilising prism or grating G02B6/293 takes precedence

Abstract

A solution for fabricating a structure including a light guiding structure is provided. The light guiding structure can be formed of a fluoropolymer-based material and include one or more regions, each of which is filled with a fluid transparent to radiation having a target wavelength, such as ultraviolet radiation. The region(s) can be created using a filler material, which is at least substantially enclosed by the fluoropolymer-based material and subsequently removed from each region. The structure can further include at least one optical element integrated into the light guiding structure.

Claims

1. A light guiding structure, comprising:

at least one ultraviolet transparent fluid region; and

an ultraviolet transparent enclosure having walls to enclose the at least one ultraviolet transparent fluid region, the ultraviolet transparent enclosure including a set of pillars, each pillar extending through the at least one ultraviolet transparent fluid region to directly contact opposing walls of the ultraviolet transparent enclosure, wherein the walls and the set of pillars of the ultraviolet transparent enclosure define a single unitary structure made from a same fluoropolymer-based material.

2. The light guiding structure of claim 1, wherein at least one of the set of pillars separates the at least one ultraviolet transparent fluid region into multiple regions, each having an ultraviolet transparent fluid, and wherein the ultraviolet transparent enclosure comprises:

an inner enclosure including a multi-layered structure, wherein at least one layer of the multi-layered structure is supported by the set of pillars, wherein the at least one ultraviolet transparent fluid region is formed in the multi-layered structure between the pillars; and

an outer enclosure enclosing the inner enclosure, wherein the set of pillars extend disjointedly from the multi-layered structure of the inner enclosure to the outer enclosure.

3. The light guiding structure of claim 2, wherein the inner enclosure and the outer enclosure each comprises a fluoropolymer, and wherein the set of pillars includes a predetermined number of pillars with an orientation that preserves a shape of the ultraviolet transparent enclosure.

4. The light guiding structure of claim 2, wherein the inner enclosure comprises a plurality of diffusive light scattering regions formed about the multi-layered structure.

5. The light guiding structure of claim 2, wherein the outer enclosure comprises an ultraviolet reflective exterior surface.

6. The light guiding structure of claim 2, wherein the multi-layered structure of the inner enclosure comprises at least one layer of a material having fluorescent properties.

7. The light guiding structure of claim 1, wherein the at least one ultraviolet transparent fluid region includes one of:

a gas, water, or air.

8. The light guiding structure of claim 1, wherein at least one of the walls of the ultraviolet transparent enclosure includes a set of diffusive elements, each diffusive element configured to propagate light from a light source in a diffusive manner.

9. The light guiding structure of claim 1, wherein the ultraviolet transparent enclosure comprises at least one region with curved boundaries.

10. The light guiding structure of claim 1, wherein the ultraviolet transparent enclosure comprises a domain having several branches.

11. The light guiding structure of claim 1, wherein the ultraviolet transparent enclosure comprises an exterior surface having optical elements.

12. A system, comprising:

at least one light source; and

a light guiding structure configured to receive light generated from the at least one light source, the light guiding structure including;

at least one ultraviolet transparent fluid region; and

an ultraviolet transparent enclosure having walls to enclose the at least one ultraviolet transparent fluid region, the ultraviolet transparent enclosure including a set of pillars, each pillar extending through the at least one ultraviolet transparent fluid region to directly contact opposing walls of the ultraviolet transparent enclosure, wherein the walls and the set of pillars of the ultraviolet transparent enclosure define a single unitary structure made from a same fluoropolymer-based material.

13. The system of claim 12, wherein the at least one light source comprises an ultraviolet light emitting diode.

14. The system of claim 12, wherein at least one of the set of pillars separates the at least one ultraviolet transparent fluid region into multiple regions each having an ultraviolet transparent fluid, wherein each of the multiple regions includes a pair of structural support members that crisscross with each other to contact a pair of pillars that defines the region, the multiple regions of crisscrossing structural support members placed between the pillars in the ultraviolet transparent fluid layer forming a lattice-type truss.

15. The system of claim 12, wherein the at least one light source is optically coupled to the light guiding structure.

16. The system of claim 12, wherein the at least one light source comprises a predetermined position and orientation with respect to the light guiding structure that facilitates light guiding along the light guiding structure.

17. The system of claim 12, wherein the ultraviolet transparent enclosure comprises at least one surface with a roughness.

18. The system of claim 12, wherein the ultraviolet transparent enclosure comprises an active optical element.

19. The system of claim 18, wherein the active optical element comprises a set of moveable diffusive elements.

20. A system, comprising:

at least one light source; and

a light guiding structure optically coupled to the at least one light source to receive light generated from the at least one light source, the light guiding structure including;

at least one ultraviolet transparent fluid region; and

an ultraviolet transparent enclosure having walls to enclose the at least one ultraviolet transparent fluid region, wherein the ultraviolet transparent enclosure comprises;

an inner enclosure including a multi-layered structure supported by a set of pillars, wherein multiple regions of ultraviolet transparent fluid are formed in the multi-layered structure between the pillars; and

an outer enclosure enclosing the inner enclosure, wherein the set of pillars extend disjointedly from the multi-layered structure of the inner enclosure to the outer enclosure.