An improved lens mount and related alignment methods are provided. In one
example, a lens mount includes a ring member and a base member connected
with the ring member. The base member has a bottom surface. First and
second coplanar mounting pads are provided on the bottom surface of the
base member. In another example, a method of aligning a lens mount
relative to a stage includes providing a lens mount comprising: a ring
member and a base member connected with the ring member. A stage having a
top surface is provided. A plurality of alignment members on a bottom
surface of the base member are aligned with a corresponding plurality of
apertures in the stage. The alignment members are inserted into the
apertures, and first, second, and third mounting pads on the bottom
surface of the base member are contacted with the top surface of the
stage.