公开(公告)号：US20240302793A1

公开(公告)日：2024-09-12

申请号：US18570847

申请日：2022-06-10

Applicant: University of Central Florida Research Foundation, Inc. ,  Goertek Inc.

Inventor： Jianghao Xiong ,  Tao Zhan ,  Kun Li ,  Shin-Tson Wu

IPC: G03H1/20 ,  G02B5/32 ,  G03H1/02 ,  G03H1/04

CPC classification number: G03H1/202 ,  G02B5/32 ,  G03H1/0256 ,  G03H2001/0439 ,  G03H2222/31 ,  G03H2240/53 ,  G03H2240/55 ,  G03H2250/38

Abstract: Here discloses a method for duplicating a hologram and a hologram optical element. The method comprises: preparing a master with a master hologram; preparing a sample with coated photoalignment material layer above the master; and irradiating a recording light through the sample to the master, so that at least one portion of the recording light is reflected by the master as an object light carrying the master hologram information, and so that the object light and the recording light are interfered at the photoalignment material layer to produce a duplicated hologram in the photoalignment material layer.

公开(公告)号：US20240103440A1

公开(公告)日：2024-03-28

申请号：US18468375

申请日：2023-09-15

Applicant: DigiLens Inc.

Inventor： Milan Momcilo Popovich ,  Jonathan David Waldern ,  Alastair John Grant

IPC: G03H1/20 ,  G03H1/02

CPC classification number: G03H1/202 ,  G03H1/0244 ,  G03H1/0248 ,  G03H1/265

Abstract: A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each containing a first hologram is stacked on a second holographic recording medium substrate. The first hologram is designed to diffract light from a first direction into a second direction. When expose to illumination from the first direction zero order and diffracted light from each first hologram interfere in the second holographic recording medium substrate forming a second hologram. The second hologram is then copied into a third holographic recording medium substrate to provide the final copy hologram.

公开(公告)号：US10078306B2

公开(公告)日：2018-09-18

申请号：US13939772

申请日：2013-07-11

Applicant: Patrick Flynn ,  John David Wiltshire ,  Jonathan Henry Wiltshire

Inventor： Patrick Flynn ,  John David Wiltshire ,  Jonathan Henry Wiltshire

IPC: G03H1/00 ,  G03H1/20 ,  G03H1/26 ,  G03H1/04 ,  G03H1/18

CPC classification number: G03H1/20 ,  G03H1/0011 ,  G03H1/041 ,  G03H1/202 ,  G03H1/268 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/184 ,  G03H2001/2615 ,  G03H2210/22 ,  G03H2210/52 ,  G03H2210/54 ,  G03H2210/55 ,  G03H2210/562 ,  G03H2222/18 ,  G03H2223/19

Abstract: We describe methods of mass-producing full color, 3D holograms, potentially incorporating a personalized image, which are particularly suitable for security purposes. Broadly speaking in embodiments a method generates, electronically, an interlaced image comprising a set of different views of a 3D object from different angles. This is projected onto a diffusing screen using coherent light and mapped from the screen into an angularly encoded object beam using a lenticular array. The different views in the angularly encoded object beam are then recorded simultaneously into holographic film using a reference beam.

公开(公告)号：US20180095213A1

公开(公告)日：2018-04-05

申请号：US15814904

申请日：2017-11-16

Applicant: Thalmic Labs Inc.

Inventor： Stefan Alexander ,  Vance R. Morrison ,  Thomas Mahon

IPC: G02B5/32 ,  G03H1/18 ,  G03H1/04 ,  G02B27/01 ,  G03H1/20

CPC classification number: G02B5/32 ,  G02B27/0172 ,  G02B2027/015 ,  G02B2027/0174 ,  G03H1/0402 ,  G03H1/0465 ,  G03H1/181 ,  G03H1/182 ,  G03H1/202 ,  G03H2001/043 ,  G03H2001/0439 ,  G03H2001/186 ,  G03H2260/12 ,  G03H2270/21

Abstract: Systems, devices, and methods for making, replicating, and using curved holographic optical elements (“HOEs”) are described. A hologram may be optically recorded into a planar layer of holographic film with various measures in place to compensate for changes (e.g., in optical power and/or playback wavelength and/or angular bandwidth) that may result when a curvature is subsequently applied thereto. A hologram may be optically recorded into a curved layer of holographic film with various measures in place to compensate for optical effects of a curved transparent substrate upon which the holographic film is mounted. A curved HOE may be returned to a planar configuration to undergo holographic replication or holographic replication may be performed using a curved master HOE and curved “recipient” film. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.

公开(公告)号：US20170212290A1

公开(公告)日：2017-07-27

申请号：US15381883

申请日：2016-12-16

Applicant: THALMIC LABS INC.

Inventor： Stefan Alexander ,  Vance R. Morrison ,  Thomas Mahon

IPC: G02B5/32 ,  G02B27/01 ,  G03H1/20 ,  G03H1/04 ,  G03H1/18

CPC classification number: G02B5/32 ,  G02B27/0172 ,  G02B2027/015 ,  G02B2027/0174 ,  G03H1/0402 ,  G03H1/0465 ,  G03H1/181 ,  G03H1/182 ,  G03H1/202 ,  G03H2001/043 ,  G03H2001/0439 ,  G03H2001/186 ,  G03H2260/12 ,  G03H2270/21

Abstract: Systems, devices, and methods for making, replicating, and using curved holographic optical elements (“HOEs”) are described. A hologram may be optically recorded into a planar layer of holographic film with various measures in place to compensate for changes (e.g., in optical power and/or playback wavelength and/or angular bandwidth) that may result when a curvature is subsequently applied thereto. A hologram may be optically recorded into a curved layer of holographic film with various measures in place to compensate for optical effects of a curved transparent substrate upon which the holographic film is mounted. A curved HOE may be returned to a planar configuration to undergo holographic replication or holographic replication may be performed using a curved master HOE and curved “recipient” film. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.

公开(公告)号：US20160062042A1

公开(公告)日：2016-03-03

申请号：US14841779

申请日：2015-09-01

Applicant: PD-LD, Inc.

Inventor： Boris Leonidovich Volodin ,  Vladimir Sinisa Ban

IPC: G02B6/293

CPC classification number: G02B6/29311 ,  G02B5/1857 ,  G02B6/2931 ,  G02B6/2938 ,  G03H1/20 ,  G03H1/202 ,  G03H2001/207

Abstract: Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG elements and for controlling filter response are also disclosed. A VBG chip, and fiber optic devices using such a chip, are also provided. A VBG chip includes a monolithic glass structure onto which a plurality of VBGs have been recorded.

Abstract translation: 公开了包括体积布拉格光栅（VBG）元件的光纤设备。 光纤设备可以包括一个或多个光输入，一个或多个VBG元件和一个或多个光接收器。 还公开了制造VBG元件和控制滤波器响应的方法。 还提供了VBG芯片和使用这种芯片的光纤设备。 VBG芯片包括其上记录有多个VBG的单片玻璃结构。

公开(公告)号：US20150056561A1

公开(公告)日：2015-02-26

申请号：US14469277

申请日：2014-08-26

Applicant: LUMINIT LLC

Inventor： Anthony Ang ,  Stanley Tafeng Kao ,  Christopher Leister

IPC: G03F7/20 ,  G03H1/04 ,  G02B5/32

CPC classification number: G03H1/0402 ,  G02B5/0252 ,  G02B5/0268 ,  G02B5/32 ,  G02B27/48 ,  G03H1/0244 ,  G03H1/202 ,  G03H2001/0439

Abstract: The optical diffuser mastering of the subject invention includes legacy microstructure surface relief patterns, along with smaller ones, overlaid on the larger ones. The characteristic features produced by the present invention will be found useful to eliminate visible structures in/on optical diffusers, such as those used in movie projection screens (utilizing either coherent (i.e., laser-generated) and non-coherent (e.g., lamp-generated) light), head-up displays (HUDs), laser projection viewing, etc., as the present invention produces much sharper images than those afforded by traditional holographic optical diffusers.

Abstract translation: 本发明的光学扩散器母盘包括传统的微结构表面浮雕图案，以及较小的，覆盖在较大的图案上。 发现本发明产生的特征可用于消除光学扩散器中/之上的可见结构，例如用于电影投影屏幕中的可见结构（利用相干（即激光产生）和非相干（例如，灯 - 生成）光），平视显示器（HUD），激光投影观察等，因为本发明产生比传统全息光学漫射器提供的图像更清晰的图像。

公开(公告)号：US20140141359A1

公开(公告)日：2014-05-22

申请号：US14163700

申请日：2014-01-24

Applicant: PD-LD, Inc.

Inventor： Boris L. Volodin ,  Vladimir Sinisa Ban

IPC: G03H1/20

CPC classification number: G02B6/29311 ,  G02B5/1857 ,  G02B6/2931 ,  G02B6/2938 ,  G03H1/20 ,  G03H1/202 ,  G03H2001/207

Abstract: Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG elements and for controlling filter response are also disclosed. A VBG chip, and fiber optic devices using such a chip, are also provided. A VBG chip includes a monolithic glass structure onto which a plurality of VBGs have been recorded.

Abstract translation: 公开了包括体积布拉格光栅（VBG）元件的光纤设备。 光纤设备可以包括一个或多个光输入，一个或多个VBG元件和一个或多个光接收器。 还公开了制造VBG元件和控制滤波器响应的方法。 还提供了VBG芯片和使用这种芯片的光纤设备。 VBG芯片包括其上记录有多个VBG的单片玻璃结构。

公开(公告)号：US08482830B2

公开(公告)日：2013-07-09

申请号：US13284766

申请日：2011-10-28

Applicant: Ken R. Harris

Inventor： Ken R. Harris

IPC: G03H1/20 ,  G03H1/24

CPC classification number: G03H1/0248 ,  G03H1/0011 ,  G03H1/0236 ,  G03H1/0406 ,  G03H1/0408 ,  G03H1/0465 ,  G03H1/202 ,  G03H1/24 ,  G03H2001/0417 ,  G03H2001/205 ,  G03H2001/207 ,  G03H2001/2231 ,  G03H2210/46 ,  G03H2210/54 ,  G03H2210/562 ,  G03H2222/36 ,  G03H2227/04 ,  G03H2240/52

Abstract: Hybrid white-light viewable holograms and methods for making them. The holograms are hybrid reflection holograms made using the diffractive structures or gratings of a holographic object such as a transmission hologram or holographic optical element (HOE). The wavefronts of the diffractive structures are converted into a reflection hologram by scanning them with a coherent light source having a profiled narrow beam. The hybrid reflection hologram can exhibit display parameters including the multiple colors, solidity, and color stability of white light reflection holograms, the diffractive color shifting of a white light transmission hologram, three dimensional imaging and a wide variety of dynamic changes. Different areas or images with each of these effects can be combined in a single hologram. These hybrid reflection holograms are ideal for security and forgery prevention applications.

Abstract translation: 混合白光可见全息图及其制作方法。 全息图是使用诸如透射全息图或全息光学元件（HOE）的全息物体的衍射结构或光栅制成的混合反射全息图。 通过用具有异型窄光束的相干光源对它们进行扫描，将衍射结构的波前转换为反射全息图。 混合反射全息图可以显示包括白光反射全息图的多种颜色，坚固性和颜色稳定性，白光透射全息图的衍射色移，三维成像和各种动态变化的显示参数。 具有这些效果的不同区域或图像可以组合在单个全息图中。 这些混合反射全息图是安全和防伪应用的理想选择。

公开(公告)号：US20120194887A1

公开(公告)日：2012-08-02

申请号：US13425342

申请日：2012-03-20

Applicant: Tsuyoshi YAMAUCHI ,  Kenji UEDA ,  Masachika WATANABE

Inventor： Tsuyoshi YAMAUCHI ,  Kenji UEDA ,  Masachika WATANABE

IPC: G02B5/32

CPC classification number: G03F7/001 ,  G03H1/0011 ,  G03H1/0248 ,  G03H1/20 ,  G03H1/202 ,  G03H2001/0016 ,  G03H2001/0417 ,  G03H2210/55 ,  G03H2210/562

Abstract: A volume hologram recording material is located on the side of a reflection type volume hologram master onto which copying illumination light is incident, and the copying illumination light incident onto the recording material and light diffracted through the master interfere together in the volume hologram recording material thereby copying the reflection type volume hologram master. In this case, a reflecting plate having a fine regular reflection pattern is interleaved between the master and the recording material, and the copying illumination light incident onto the recording material and regularly reflected light from the reflecting plate having the regular reflection pattern interfere together in the recording material thereby allowing the regular reflection pattern to be multi-recorded in a hologram having the reflection type volume hologram master copied in it.

Abstract translation: 体积全息图记录材料位于复制照明光入射的反射型体积全息图主体的一侧，并且入射到记录材料上的复制照明光和通过主体衍射的光在体积全息图记录材料中相互干扰，从而 复制反射型体积全息图母版。 在这种情况下，具有精细的正反射图案的反射板在主记录材料和记录材料之间交错，并且入射到记录材料上的复印照明光和来自具有规则反射图案的反射板的规则反射光在 从而允许将常规反射图案多次记录在其中复制有反射型体积全息图母板的全息图中。