Scalable size deformable pocket mirror with on-pocket bimorph actuator
View Patent ↗The invention includes a deformable mirror for use in adaptive and active optical systems and in optical technology laser communication directed energy systems. The invention utilizes pockets formed in the back of the mirrors substrate. The pockets house actuators that are bonded to the substrate and may adjustably deform the mirror surface depending on the voltage supplied to the actuators. A plurality of mirrors may be combined to form a scalable array or positioned to overcome issues related to the uncontrollable portions of separate individual mirrors.
1. A deformable mirror comprising:
(a) a substrate having a top and a bottom sides and a thickness;
(b) a reflective coating disposed on one of said sides of said substrate;
(c) at least one recess formed in one of said sides of said substrate;
(d) at least one actuator in communication with said substrate,
(e) at least one electrical connector in communication with said actuator;
(f) an annular groove disposed at the bottom of said recess and
(g) a raised circular table within said recess and being formed by said groove, said table being concentrically located about the center of said recess and parallel to said reflecting surface of said substrate; and
(h) said actuator is affixed to said table and said actuator is mechanically isolated from all other areas of the recess whereby said actuator transmits motion exclusively through said table to said reflecting surface of said substrate.
2. The deformable mirror according to claim 1 , wherein said reflecting coating is disposed on said top side of said substrate.
3. The deformable mirror according to claim 1 , wherein said actuator is disposed in said recess.
4. The deformable mirror according to claim 1 , wherein said recess is formed through more than half of said thickness of said substrate.
5. The deformable mirror according to claim 1 , wherein said actuator is in communication with said top side of said connector.
6. The deformable mirror according to claim 1 , wherein said substrate is formed of ceramic material.
7. The deformable mirror according to claim 6 , wherein the ceramic substrate is glass.
8. The deformable mirror in accordance with claim 1 wherein said recesses further comprise a bottom and at least one wall.