Lens positioning assembly
AssigneeFFEI Limited
InventorsPaul Scott Griffiths, William Roland Hawes
Life of this patent
Estimating the term…
Abstract
A microscope objective lens positioning assembly comprises a lens mounting member to which a microscope objective lens defining an optical axis is mounted; a support member; and a pair of leaf springs. Each leaf spring has first and second ends, the first ends of the leaf springs being secured to upper and lower aligned locations respectively on the support member, and the second ends of the leaf springs being secured to corresponding upper and lower locations respectively on the lens mounting member whereby the two leaf springs, the optical axis of the objective lens, and a line between the upper and lower aligned locations on the support member define a parallelogram, the leaf springs flexing in use in response to movement of the lens mounting member.
Claims21
A lens positioning assembly comprising a lens mounting member to which a lens defining an optical axis is mounted, the lens mounting member being movably connected to a support member;
- an actuator on the optical axis of the lens for applying a force to the lens mounting assembly the force passing through the centre of mass of the lens;
- and a reflector mounted to the support member independently of the lens mounting member and located on the optical axis between the lens and the actuator for reflecting radiation passing through the objective lens away from the optical axis.
Dependencies are inferred from the claim text.