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公开(公告)号：US20240300170A1
公开(公告)日：2024-09-12
申请号：US18557256
申请日：2022-04-27
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 (
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公开(公告)号：US20200030879A1
公开(公告)日：2020-01-30
申请号：US16484310
申请日：2018-02-16
Inventor： Rongguang Liang , Zhihan Hong
Abstract: A system and method for printing a transparent object with an additive manufacture printer. The system includes a stage on which the object is to be produced, a dispenser coupled to a source of thermally-curable optical material positioned to deposit the thermally-curable optical material at a position on the stage, an ultrafast laser configured to direct radiation having a wavelength in the range 800 nm-2000 nm to the position, and at least one mechanism to cause relative movement between the stage and the dispenser, and relative movement between the stage and the laser.
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