US 12,393,006 B2
Modular objective assembly with moveable laser beam
Diarmaid Douglas-Hamilton, Beverly, MA (US); Sudha Thimmaraju, Andover, MA (US); Stephen F. Fulghum, Jr., Fairview, NC (US); Thomas G. Kenny, Ipswich, MA (US); and Thomas G. Kenny, Jr., Topsfield, MA (US)
Assigned to HAMILTON THORNE, INC., Beverly, MA (US)
Filed by HAMILTON THORNE, INC., Beverly, MA (US)
Filed on Nov. 27, 2023, as Appl. No. 18/520,419.
Application 18/520,419 is a continuation of application No. 17/080,290, filed on Oct. 26, 2020, granted, now 11,828,925.
Application 17/080,290 is a continuation of application No. 16/261,322, filed on Jan. 29, 2019, granted, now 10,816,786, issued on Oct. 27, 2020.
Claims priority of provisional application 62/623,375, filed on Jan. 29, 2018.
Prior Publication US 2024/0353664 A1, Oct. 24, 2024
Int. Cl. G02B 21/04 (2006.01); G02B 21/00 (2006.01); G02B 21/06 (2006.01); G02B 21/36 (2006.01)
CPC G02B 21/04 (2013.01) [G02B 21/0012 (2013.01); G02B 21/06 (2013.01); G02B 21/36 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A moveable-beam laser objective assembly for mounting onto a turret of a microscope having a camera, comprising:
a modular objective body including an objective having an optical axis;
a dichroic mirror located within the objective body and positioned at an angle relative to the optical axis, the mirror configured to direct a laser beam through the objective and toward a target for performing laser microsurgery and configured to direct an indicator beam toward the camera, in a direction opposite to that of the laser beam, for providing a visible indication of the laser beam position on the target;
a mirror frame on which the mirror is mounted, the mirror frame having a socket to accommodate the mirror and configured to be moveable on two axes;
a restoring support, comprising one or more magnets and/or one or more springs, configured to provide a restoring force to the mirror frame substantially perpendicular to its plane;
a kinematic support configured to generate force against the mirror frame in a direction opposite to that of the restoring force, the kinematic support controllable by a computer; and
at least one rod or fiber secured to the objective body, the rod or fiber constructed and arranged to constrain the mirror frame against yaw motion.