公开(公告)号：US11222662B2

公开(公告)日：2022-01-11

申请号：US16308637

申请日：2018-05-25

Applicant: Huazhong University of Science and Technology

Inventor： Haiyan Peng ,  Guannan Chen ,  Xingping Zhou ,  Xiaolin Xie ,  Yonggui Liao ,  Hongwei Ge ,  Zhifang Yang ,  Xiaomei Zhang

IPC: G11B7/0065 ,  C08F2/38 ,  C08F2/50 ,  C08F290/06 ,  G03H1/04 ,  C08G77/04 ,  G03H1/18 ,  G03H1/02

Abstract: The present invention belongs to the field of functional materials, and particularly relates to a directly printable image recording material, a preparation method and application thereof. The image recording material comprises 25 to 78.8 parts by mass of a photopolymerizable monomer, 0.2 to 5 parts by mass of a photoinitiator, 20 to 70 parts by mass of an inert component, and 0.05 to 2 parts by mass of a thermal polymerization inhibitor, and has an initial viscosity of 200 to 800 mPa·s. The photopolymerizable monomer includes a thiol monomer and an olefin monomer, at least one of which is a silicon-based monomer with polyhedral oligomeric silsesquioxane as a silicon core. By introducing a POSS-based thiol or olefin monomer into the photopolymerizable monomer in combination with other material components, the recording material is allowed to have an initial viscosity of 200 to 800 mPa·s, and meanwhile, the low thermal conductivity characteristic of the POSS-based photopolymerizable monomer is utilized, so that image storage quality is ensured, continuous industrial production of the image recording material is achieved, the process cost is reduced and the production efficiency is improved.

公开(公告)号：US12222679B1

公开(公告)日：2025-02-11

申请号：US18713188

申请日：2022-10-26

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xiaolin Xie ,  Jinlun Zhou ,  Haiyan Peng ,  Yun Zhang ,  Huamin Zhou ,  Mingli Ni ,  Xingping Zhou

IPC: G03H1/02 ,  G03H1/04 ,  G03H1/16 ,  G03H1/30

Abstract: A holographic wavefront printing system and method are provided. A two-dimension digital blazed grating is loaded on a phase hologram, and the emergent direction of active region diffracted light is adjusted to prevent overlapping with the dead region diffracted light after being Fourier transformed by a lens, and a phase spatial light modulator is inclined by a preset angle to change the emergent direction of the diffracted light, such that the dead region zeroth-order and first-order diffracted light on a focusing surface are symmetrical with respect to a main optical axis of a first lens, the frequency spectrum center of active region zeroth-order diffracted light is then loaded to the original frequency spectrum center without information change. In this way, the adverse effects of the dead region diffracted light and active region high-order diffracted light of the phase spatial light modulator on holographic wavefront printing are eliminated.

公开(公告)号：US20140154614A1

公开(公告)日：2014-06-05

申请号：US14131672

申请日：2012-05-24

Applicant: Huazhong University of Science and Technology

Inventor： Xiaolin Xie ,  Haiyan Peng ,  Xingping Zhou ,  Chengfu Zheng ,  Hongwei Ge

IPC: G03H1/20

CPC classification number: G03H1/20 ,  G03H1/0248 ,  G03H1/24 ,  G03H2001/2271 ,  G03H2260/12 ,  G03H2260/33

Abstract: A method for preparing a colorful three-dimensional hologram based on holographic polymer dispersed liquid crystal gratings comprises: first, in a 441.6 nm laser interference field, preparing with holography a holographic master (7) which stores the reflected (or transmitted) light wave information (amplitude and phase) of an object captured; then using an object light (6) to irradiate the holographic master at a Bragg angle to generate a diffraction light (8); and using the diffraction light and a reference light (10) to simultaneously irradiate a holographic base board (9) comprising a photosensitizer, a co-initiator, a monomer capable of free radical polymerization , and a liquid crystal so that, when total optical paths of the two laser beams reaching the holographic base board are equivalent to each other, optical coherence occurs between the two laser beams on the holographic base board, thereby obtaining a colorful three-dimensional hologram based on holographic polymer dispersed liquid crystal gratings from which an image of the captured object can be observed in the sunlight.

Abstract translation: 一种用于制备基于全息聚合物分散液晶光栅的彩色三维全息图的方法，包括：首先，在441.6nm的激光干涉场中，准备全息照相机（7），其存储反射（或透射）的光波信息 （幅度和相位）; 然后使用物体光（6）以布拉格角照射全息原件以产生衍射光（8）; 并且使用衍射光和参考光（10）同时照射包含光敏剂，共引发剂，能够自由基聚合的单体和液晶的全息基板（9），使得当总光路 到达全息基板的两个激光束彼此相等，在全息基板上的两个激光束之间发生光学相干，从而获得基于全息聚合物分散的液晶光栅的彩色三维全息图，图像 可以在阳光下观察被捕获的物体。

公开(公告)号：US11009829B2

公开(公告)日：2021-05-18

申请号：US16509590

申请日：2019-07-12

Applicant: Huazhong University of Science and Technology

Inventor： Haiyan Peng ,  Ye Zhao ,  Xiaolin Xie ,  Xingping Zhou ,  Xiaoyu Zhao

IPC: G03H1/02 ,  G03H1/18 ,  C09K11/06 ,  G03H1/00

Abstract: The disclosure belongs to the technical field of photopolymer materials, and more particularly relates to a dual image storage material as well as a preparation method and application thereof. The dual image storage material is obtained by selective photoreaction of 1 to 50 parts by weight of an organic fluorescent material, 7 to 50 parts by weight of liquid crystal, 0.2 to 10 parts by weight of a photoinitiator and 33 to 67 parts by weight of photopolymerizable monomers. The obtained dual image storage material can present a high-brightness holographic pattern under sunlight and a fluorescent pattern under ultraviolet light in the same spatial position. The presented holographic and fluorescent patterns may be the same or different. The obtained dual image storage material can be used in the field of optical anti-counterfeiting, optical information storage, displays or the like.