- Patent Title: High-throughput 3D printing of customized aspheric imaging lenses
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Application No.: US16975458Application Date: 2019-03-08
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Publication No.: US12285909B2Publication Date: 2025-04-29
- Inventor: Xiangfan Chen , Wenzhong Liu , Hao F. Zhang , Cheng Sun
- Applicant: Northwestern University
- Applicant Address: US IL Evanston
- Assignee: Northwestern University
- Current Assignee: Northwestern University
- Current Assignee Address: US IL Evanston
- Agency: Leydig, Voit & Mayer, Ltd.
- International Application: PCT/US2019/021288 WO 20190308
- International Announcement: WO2019/173674 WO 20190912
- Main IPC: B33Y10/00
- IPC: B33Y10/00 ; B29C64/129 ; B33Y30/00 ; B29C35/08 ; B29K105/00 ; B33Y70/00 ; B33Y80/00

Abstract:
In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is formed via at least the combination of the steps of gray scale photohardening and applying the meniscus coating. In some embodiments, the grayscale photohardening step is a grayscale photopolymerization step. In some embodiments, the applying a hardened meniscus coating step is a meniscus equilibrium post-curing step.
Public/Granted literature
- US20210016496A1 HIGH-THROUGHPUT 3D PRINTING OF CUSTOMIZED ASPHERIC IMAGING LENSES Public/Granted day:2021-01-21
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