US 11,751,970 B2
Method of making diverging-light fiber optics illumination delivery system
Alireza Mirsepassi, Irvine, CA (US); Ronald T. Smith, Irvine, CA (US); Michael J. Papac, North Tustin, CA (US); and Chenguang Diao, Irvine, CA (US)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Nov. 3, 2022, as Appl. No. 18/52,295.
Application 18/052,295 is a continuation of application No. 16/365,182, filed on Mar. 26, 2019, granted, now 11,517,392.
Application 16/365,182 is a continuation of application No. 14/974,422, filed on Dec. 18, 2015, granted, now 10,278,785, issued on May 7, 2019.
Prior Publication US 2023/0085961 A1, Mar. 23, 2023
Int. Cl. A61B 90/30 (2016.01); G02B 6/24 (2006.01); G02B 6/26 (2006.01); A61B 90/00 (2016.01); A61F 9/007 (2006.01); G02B 5/02 (2006.01); F21V 8/00 (2006.01); A61B 1/07 (2006.01); A61B 1/00 (2006.01); A61B 17/00 (2006.01)
CPC A61B 90/30 (2016.02) [A61B 90/36 (2016.02); A61F 9/007 (2013.01); G02B 5/021 (2013.01); G02B 5/0242 (2013.01); G02B 5/0247 (2013.01); G02B 6/0008 (2013.01); G02B 6/241 (2013.01); G02B 6/262 (2013.01); A61B 1/0011 (2013.01); A61B 1/00096 (2013.01); A61B 1/07 (2013.01); A61B 17/00 (2013.01); A61B 2017/00526 (2013.01); A61B 2090/306 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A method of preparing an illumination fiber optics for an ophthalmic device, the method comprising:
providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and
creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle;
wherein the creating the light-scattering element comprises:
(a) providing a hard tool with a nanostructured tool surface relief pattern; and
(b) pressing the tool surface relief pattern of the hard tool onto the distal end of the optical fiber to form a fiber surface relief pattern on the distal end of the optical fiber;
wherein the creating the light-scattering element further comprising:
laser-fusing a silica end-cap to the distal end of the optical fiber to seal air pockets of the fiber surface relief pattern.