Microlayer coextrusion of optical end products

Patent metadata

Field	Value
Publication number	US-11513283-B2
Application number	US-202017119274-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Aug 21, 2012
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

The disclosed embodiments generally relate to extruding multiple layers of micro- to nano-polymer layers in a tubular shape. In particular, the aspects of the disclosed embodiments are directed to a method for producing a Bragg reflector comprising co-extrusion of micro- to nano-polymer layers in a tubular shape.

First claim

The invention claimed is:

1. A tubular device comprising co-extruded micro- to nano- polymer annular layers in a seamless tubular shape wherein the annular layers include at least one photovoltaic material and at least one layer allows for the passage of light.

2. The tubular device according to claim 1 , wherein the device comprises multiple streams of layered material or non-layered-material.

3. The tubular device according to claim 1 , wherein the device comprises multiple streams that are merged, folded, bent or wrapped.

4. The tubular device according to claim 2 , wherein the device comprises multiple streams forming radial stems.

5. The tubular device according to claim 4 , wherein said stems are tapered radially inwards.

6. The tubular device according to claim 4 , wherein said stems are tapered radially outwards.

7. The tubular device according to claim 4 , wherein the stems have constant thicknesses.

8. The tubular device according to claim 4 , wherein the stems have different thicknesses.

9. The tubular device according to claim 1 , wherein said device is a photonic crystal fiber.

10. The tubular device according to claim 1 , wherein said device bends light.

11. The tubular device according to claim 1 , wherein said device transmits light through a tube.

12. The tubular device according to claim 1 , wherein at least one layer contains a conducting material.

13. The tubular device according to claim 1 , which contains a core or substrate.

14. The tubular device according to claim 1 wherein the core is hollow.

Assignees

• Guill Tool & Eng Co Inc

Inventors

• Guillemette Richard
• Peters Robert
• Hummel Christopher

Classifications

• G02B6/02304

  Core having lower refractive index than cladding, e.g. air filled, hollow core · CPC title

• G02B1/045

  Light guides · CPC title

• G02B6/1221

  made from organic materials · CPC title

• G02B6/0208

  characterised by their structure, wavelength response (G02B6/02114, G02B6/02171, G02B6/02195 take precedence; multiple layer cores or claddings G02B6/036, protective coverings G02B6/4429) · CPC title

• G02B6/03616

  Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference · CPC title