Patent ID: 7075738

Claim:
A positioning apparatus comprising: a. An intermediate portion defining an axis; b. A first end portion, mounted with the intermediate portion with a first flexure leg, wherein the first flexure leg mounts with the first end portion at a first attachment location and with the intermediate portion at a second attachment location, where a line connecting the first and second attachment locations is not line parallel to the axis; c. A second end portion, mounted with the intermediate portion with a second flexure leg, wherein the second flexure leg mounts with the second end portion at a third attachment location and with the intermediate portion at a fourth attachment location, where a line connecting the third and fourth attachment locations is not line parallel to the axis; wherein each flexure leg comprises three portions: a mid portion between the attachment points, and two flex portions, each situated between the mid portion and one attachment location, and wherein the stiffness parallel to the axis of the flex portions is less than that of the mid portion.