Deformable mirror with integrated microchannel support

Patent metadata

Field	Value
Publication number	US-11726314-B2
Application number	US-202217743111-A
Country	US
Kind code	B2
Filing date	May 12, 2022
Priority date	Jul 25, 2019
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A deformable mirror has a mirror front face and a mirror back exposed surface. An elastomeric support structure is connected to the mirror back exposed surface. The elastomeric support structure includes a multitude of microchannels wherein the microchannels have a closed end located proximate the mirror back exposed surface and an open end located away from the mirror back exposed surface. A fluid pressure source is connected to the open end of the microchannels. A power source and control system are connected to the fluid pressure source.

First claim

The invention claimed is:

1. A method of making a deformable mirror, comprising the steps of:
providing a substrate,
producing a release layer on said substrate,
producing a thin film mirror on said release layer,
removing said release layer providing a thin film mirror having a mirror front face and a mirror back exposed surface,
using additive manufacturing to construct an elastomeric support structure on said mirror back exposed surface of said thin film mirror wherein said elastomeric support structure includes a multitude of microchannels wherein said microchannels have a closed end located proximate said mirror back exposed surface and an open end located away from said mirror back exposed surface,
provide a fluid pressure source connected to said open end of said microchannels,
provide a power source and control system connected to said fluid pressure source, and
selectively fluid pressuring certain of said microfluidic channels causing said thin film mirror to be deformed to a desired shape.

2. The method of making a deformable mirror of claim 1 wherein said step of selectively fluid pressuring certain of said microfluidic channels causes said thin film mirror to be deformed to a convex shape.

3. The method of making a deformable mirror of claim 1 wherein said step of selectively fluid pressuring certain of said microfluidic channels causes said thin film mirror to be deformed to a concave shape.

4. The method of making a deformable mirror of claim 1 wherein said step of selectively fluid pressuring certain of said microfluidic channels causes said thin film mirror to be deformed to an asymmetrical shape.

5. The method of making a deformable mirror of claim 1 wherein said step of providing a fluid pressure source connected to said open end of said microchannels comprises using a piezoelectric crystal to provide a fluid pressure source connected to said open end of said microchannels.

6. The method of making a deformable mirror of claim 1 wherein said step of providing a fluid pressure source connected to said open end of said microchannels comprises using a valve to provide a fluid pressure source connected to said open end of said microchannels.

7. The method of making a deformable mirror of claim 1 wherein said mirror back exposed surface has individually addressable areas that allow deformation of said thin film mirror and wherein said step of selectively fluid pressuring certain of said microfluidic channels causing said thin film mirror to be deformed to a desired shape comprises selectively fluid pressuring said microfluidic channels at said individually addressable areas causing said thin film mirror to deform.

8. The method of making a deformable mirror of claim 1 wherein said mirror back exposed surface has individually addressable areas that allow deformation of said thin film mirror and wherein said step of selectively fluid pressuring certain of said microfluidic channels causing said thin film mirror to be deformed to a desired shape comprises selectively fluid pressuring said microfluidic channels at said individually addressable areas causing said thin film mirror to deform to a convex shape.

9. The method of making a deformable mirror of claim 1 wherein said mirror back exposed surface has individually addressable areas that allow deformation of said thin film mirror and wherein said step of selectively fluid pressuring certain of said microfluidic channels causing said thin film mirror to be deformed to a desired shape comprises selectively fluid pressuring said microfluidic channels at said individually addressable areas causing said thin film mirror to deform to a concave shape.

10. The method of making a deformable mirror of claim 1 wherein said mirror back exposed surface has individually addressable areas that allow deformation of said thin film mirror and wherein said step of selectively fluid pressuring certain of said microfluidic channels causing said thin film mirror to be deformed to a desired shape comprises selectively fluid pressuring said microfluidic channels at said individually addressable areas causing said thin film mirror to deform to a convex shape.

Assignees

• L Livermore Nat Security Llc

Inventors

• Pascall Andrew J
• Krauter Kerry G

Classifications

• G02B26/0858 Primary

  the reflecting means being moved or deformed by piezoelectric means · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title