US 11,957,412 B2
Imaging device for ophthalmic laser system using off-axis miniature camera
Zenon Witowski, Pleasanton, CA (US); Mohammad Saidur Rahaman, Santa Clara, CA (US); and Daryl Wong, San Jose, CA (US)
Assigned to AMO Development, LLC, Irvine, CA (US)
Appl. No. 17/057,105
Filed by AMO Development, LLC, Irvine, CA (US)
PCT Filed Nov. 11, 2019, PCT No. PCT/IB2019/059669
§ 371(c)(1), (2) Date Nov. 20, 2020,
PCT Pub. No. WO2020/109899, PCT Pub. Date Jun. 4, 2020.
Claims priority of provisional application 62/772,566, filed on Nov. 28, 2018.
Prior Publication US 2021/0275017 A1, Sep. 9, 2021
Int. Cl. A61B 3/14 (2006.01); A61B 3/00 (2006.01); A61F 9/008 (2006.01)
CPC A61B 3/145 (2013.01) [A61B 3/0008 (2013.01); A61F 9/008 (2013.01); A61F 2009/00897 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An imaging system for an ophthalmic laser system, the ophthalmic laser system comprising a focusing objective lens, the imaging system comprising:
a prism cone made of a transparent optical material and disposed downstream of the focusing objective lens, the prism cone having an upper surface, a lower surface parallel to the upper surface, a side surface between the upper and lower surfaces, and a beveled surface formed at an upper edge of the prism cone and intersecting the upper surface and the side surface, wherein the upper surface and the lower surface intersect an optical axis of the objective lens; and
a camera disposed adjacent to the prism cone, the camera having an image detector that faces the beveled surface of the prism cone, wherein the camera is disposed to directly receive light that enters the lower surface of the prism cone and exits the beveled surface without having been reflected by any surface.