公开(公告)号：US20240300170A1

公开(公告)日：2024-09-12

申请号：US18557256

申请日：2022-04-27

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Rongguang Liang ,  Douglas A. Loy ,  Zhihan Hong ,  Piaoran Ye

IPC: B29C64/188 ,  B29C64/112 ,  B29D11/00 ,  B29K105/00 ,  B29K105/16 ,  B29K509/08 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C03B19/01 ,  C03B19/06

CPC classification number: B29C64/188 ,  B29C64/112 ,  B29D11/00365 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  C03B19/01 ,  C03B19/066 ,  B29K2105/0002 ,  B29K2105/16 ,  B29K2509/08 ,  B29K2995/0026 ,  B29K2995/0073

Abstract: The present invention features a liquid, solvent-free, silica precursor and two-photon 3D printing process to meet the increasing needs of high-precision glass micro-optics and address the major limitations of current three-dimensional (3D) printing optics. The printed optical elements may be fully converted to transparent inorganic glass at temperatures as low as 600° C. with shrinkages as low as 17%. The present invention includes a complete process chain, from material development, printing process, and performance evaluation of the printed glass micro-optics. 3D printing of glass micro-optics with isotropic shrinkage, micrometer resolution, low deviation peak-to-valley value (