Invention Grant
- Patent Title: Dynamic holography focused depth printing device
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Application No.: US15739113Application Date: 2016-12-22
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Publication No.: US10976703B2Publication Date: 2021-04-13
- Inventor: Brian Mullins
- Applicant: Dualitas Ltd
- Applicant Address: GB Buckinghamshire
- Assignee: Dualitas Ltd
- Current Assignee: Dualitas Ltd
- Current Assignee Address: GB Buckinghamshire
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- International Application: PCT/GB2016/054041 WO 20161222
- International Announcement: WO2017/115077 WO 20170706
- Main IPC: G03H1/00
- IPC: G03H1/00 ; B29C64/227 ; B29C64/273 ; G03H1/04 ; G03H1/22 ; B33Y50/00 ; G03H1/02

Abstract:
A printing device (106) includes a laser source and a LCOS-SLM (Liquid Crystal on Silicon Spatial Light Modulator). The printing device generates a laser control signal and a LCOS-SLM control signal. The laser source (110) generates a plurality of incident laser beams based on the laser control signal. The LCOS-SLM (112) receives the plurality of incident laser beams, modulates the plurality of incident laser beams based on the LCOS-SLM control signal to generate a plurality of holographic wavefronts (214,216) from the modulated plurality of incident laser beams. Each holographic wavefront forms at least one corresponding focal point. The printing device cures a surface layer or sub-surface layer (406) of a target material (206) at interference points of focal points of the plurality of holographic wavefronts. The cured surface layer of the target material forms a three-dimensional printed content.
Public/Granted literature
- US20200041957A1 Dynamic Holography Focused Depth Printing Device Public/Granted day:2020-02-06
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