Mirror mount having plural flexure elements
View Patent ↗A mirror mount includes a two-axis mirror flexure mount with increased stiffness in all but the desired degrees of freedom. The mount is an integrally formed support for a mirror and includes a rigid portion, a plurality of base portions suitable for mounting the mirror thereto, and a plurality of substantially linear flexure elements disposed between the mount portion and the base portion to connect the mount portion and the base portion together. The flexure elements each define an axis of rotation and are operable to allow the mount portion to rotate relative to the base portion along either axis of rotation.
1. A mount for a mirror on a support, said mount comprising;
a rigid portion;
a plurality of base portions; and
a plurality of substantially linear flexure elements, wherein a first set of said flexure elements defines a first axis of rotation and is disposed between at least one base portion and said rigid portion and a second set of said flexure elements defines a second axis of rotation, and is disposed between at least another one of said base portions and said rigid portion, wherein said first axis of rotation is substantially perpendicular to said second axis of rotation, wherein the plural linear flexure elements in each of the first set and second set are joined at a common point on the first and second axes of rotation, respectively.
2. The mount for a mirror according to claim 1 , wherein said flexure elements are tapered in thickness.
3. The mount for a mirror according to claim 1 , wherein said plurality of base portions comprises two base portions.
4. The mount for a mirror according to claim 1 , wherein said plurality of base portions comprises two pairs of base portions.
5. The mount of claim 1 , wherein the first set of said flexure elements is integrally formed in said at least one base portion.
6. The mount of claim 1 , wherein the second set of said flexure elements is integrally formed in said at least another one of said base portions.
7. The mount of claim 1 , wherein the said rigid portion comprises plural arms, each arm being integrally formed with one of said plural base portions, wherein said flexure elements form an x-shaped cross-section along the axis of each arm.
8. The mount of claim 1 , wherein said rigid portion, said plurality of base portions, and said plurality of substantially linear flexure elements are comprised in a single homogenous material.
9. A mount for a mirror on a support, said mount comprising;
a rigid portion;
a plurality of base portions; and
a plurality of substantially linear flexure elements, wherein a first set of said flexure elements defines a first axis of rotation and is disposed between at least one base portion and said rigid portion and a second set of said flexure elements defines a second axis of rotation; and is disposed between at least another one of said base portions and said rigid portion, wherein said first axis of rotation substantially perpendicular to said second axis of rotation, wherein the plural linear flexure elements in each of the first set and second set are joined at a common point on the first and second axes of rotation respectively,
said at least one base portion is attached to said mirror, and said at least another base portion is attached to said support, wherein the first and second sets of flexure elements permit rotation of said mirror relative to said support along said first and second axes of rotation, respectively, and each of said flexure elements comprises at least one flange having at least two edges, one of said at least two edges integral with said rigid portion and the other of said at least two edges integral with at least one of said base portion.
10. The mount for a mirror according to claim 9 , wherein each of said flexure elements includes four flanges in an x-shaped cross section, two of said flanges integral with said rigid portion and two of said flanges integral with said at least one of said base portions.
11. The mount of claim 9 , wherein the rigid portion and the plural base portions are integrally formed.
12. A mount for a mirror on a support, said mount comprising;
a rigid portion;
four base portions; and
plural linear flexure elements, wherein a first set of said flexure elements defines a first axis of rotation and is disposed between one pair of base portions and said rigid portion and a second set of said flexure elements defines a second axis of rotation and is disposed between another pair of said base portions and said rigid portion, wherein said first axis of rotation is substantially perpendicular to said second axis of rotation, wherein the plural linear flexure elements in each of the first set and second set are joined at a common point on the first and second axes of rotation respectively, the first pair of base portions attached to said mirror, and said second pair of base portions being attached to said support, wherein the first and second set of flexure elements together permit rotation of said mirror relative to said support along either said first and second axes of rotation and each of said sets of flexure elements comprises at least one flange having at least two edges, one of said at least two edges integral with said rigid portion and the other of said at least two edges integral with at least one of said base portions.
13. The mount for a mirror according to claim 12 , wherein each of said sets of flexure elements includes four flanges in an x-shaped cross section, two of said flanges integral with said rigid portion and two of said flanges integral with at least one of said base portions.
14. The mount for a mirror according to claim 12 , wherein said first set of flexure elements includes four flanges in an x-shaped cross section, two of said flanges integral with said rigid portion and two of said flanges integral with said base portions attached to said mirror and said second set of flexure elements includes four flanges in an x-shaped cross section, two of said flanges integral with said rigid portion and two of said flanges integral with said base portions attached to said support.
15. The mount of claim 12 , wherein the rigid portion and the plural base portions are integrally formed.