公开(公告)号：US20240319411A1

公开(公告)日：2024-09-26

申请号：US18603390

申请日：2024-03-13

Applicant: Suzhou Han Hua Semiconductor Co., Ltd

Inventor： Qian Fan ,  Xianfeng Ni

IPC: G02B3/00 ,  B29D11/00

CPC classification number: G02B3/0031 ,  B29D11/00365 ,  G02B3/0025 ,  B29K2883/00

Abstract: A method for fabricating a microlens array includes: step S1, providing a first substrate, and forming a patterned mask layer on the first substrate; step S2, etching the first substrate to form spaced grooves; step S3, removing the patterned mask layer; step S4, attaching a photoresist layer to the upper surface of the first substrate; step S5, softening the photoresist layer so that it adheres to the inner wall of the groove to form a concave smooth surface; step S6, solidifying the photoresist layer to form a working mold; applying an adhesive material and the working mold through the second substrate. The microlens array is produced by pressing the mold together or injecting PDMS material into the surface of the working mold.

公开(公告)号：US11919264B2

公开(公告)日：2024-03-05

申请号：US17039624

申请日：2020-09-30

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Zhang Jiang ,  Miaoqi Chu ,  Jin Wang ,  Michael J. Pellin ,  Prabhjot Mehta Menon

IPC: B29D11/00 ,  G02B3/00 ,  G03F7/00 ,  G21K1/06

CPC classification number: B29D11/00365 ,  B29D11/00403 ,  G02B3/0012 ,  G03F7/001 ,  G21K1/065 ,  G21K2201/067

Abstract: A method of fabricating a refractive optical element on a substrate may provide less expensive and more compact optics for an X-ray system. The method includes coating the substrate with a resin and providing radiation to a portion of the resin to cause two photon polymerization of the resin. The method further includes forming, by two photon polymerization, a first surface of a polymer refractive optical element from the resin. The first surface is disposed along an optical axis of the refractive optical element and the first surface has a roughness of less than 100 nanometers. Further, the method includes forming, by two photon polymerization, a second surface of the polymer refractive optical element. The second surface is disposed along the optical axis of the refractive optical element and the second surface has a roughness of less than 100 nanometers.

公开(公告)号：US20240042710A1

公开(公告)日：2024-02-08

申请号：US18257298

申请日：2021-12-06

Applicant: ams-OSRAM Asia Pacific Pte. Ltd.

Inventor： Abhishek SAXENA ,  Elena ISENI

IPC: B29D11/00

CPC classification number: B29D11/00365 ,  B29D11/0048

Abstract: A method for manufacturing an optical element such as a micro-optic lens may include providing a substrate having a surface profile, the substrate surface profile defining one or more flow stop features. The method may include providing a mold tool having a mold surface profile and dispensing viscous material. When the mold surface profile and the substrate surface profile are disposed towards one another and aligned relative to one another, the mold surface profile and the substrate surface profile define therebetween an optical element cavity, a peripheral cavity disposed around a periphery of the optical element cavity where the peripheral cavity includes one or more flow stop features, and an air flow path for air to flow in and out of the peripheral cavity from and to an external environment. The optical element cavity and the peripheral cavity define a peripheral constriction therebetween.

公开(公告)号：US20180194157A1

公开(公告)日：2018-07-12

申请号：US15740620

申请日：2016-07-11

Applicant: DE LA RUE INTERNATIONAL LIMITED

Inventor： Brian William HOLMES ,  John GODFREY

IPC: B42D25/342 ,  B42D25/324 ,  B42D25/351 ,  B42D25/355 ,  B42D25/378 ,  B42D25/425 ,  B42D25/455 ,  B42D25/46 ,  B42D25/48 ,  G02B3/00 ,  G02B1/04 ,  B29D11/00

CPC classification number: G06T1/0014 ,  B29D11/00298 ,  B29D11/00365 ,  B29D11/00442 ,  B41M3/14 ,  B42D25/23 ,  B42D25/24 ,  B42D25/29 ,  B42D25/324 ,  B42D25/342 ,  B42D25/351 ,  B42D25/355 ,  B42D25/378 ,  B42D25/425 ,  B42D25/45 ,  B42D25/455 ,  B42D25/46 ,  B42D25/47 ,  B42D25/48 ,  G02B1/041 ,  G02B3/0006 ,  G02B3/0012 ,  G02B3/0031 ,  G02B3/005 ,  G06K9/3216 ,  G06K9/3275 ,  G06K2009/3225 ,  G06T7/80 ,  G06T2207/30144 ,  H04N1/00267 ,  H04N5/23212 ,  H04N5/247

Abstract: A method of making a security device including: (a) forming an array of focussing elements on at least a first region of a focussing element support layer, by: (a)(i) applying a first transparent curable material either to the focussing element support layer or to a casting tool carrying a surface relief corresponding to the focussing elements, over an first sub-region of the first region and applying a second transparent curable material to a second sub-region of the first region laterally offset from the first sub-region, the first and second transparent curable materials having different optical detection characteristics from one another; (a)(ii) forming the first and second transparent curable materials with the casting tool; and (a)(iii) curing the first and second transparent curable materials in the first region, so as to retain the surface relief.

公开(公告)号：US20180178577A1

公开(公告)日：2018-06-28

申请号：US15738460

申请日：2016-07-11

Applicant: DE LA RUE INTERNATIONAL LIMITED

Inventor： Adam LISTER

IPC: B42D25/342 ,  B42D25/324 ,  B42D25/351 ,  B42D25/378 ,  B42D25/425 ,  B42D25/455 ,  B42D25/46 ,  G02B3/00

CPC classification number: G06T1/0014 ,  B29D11/00298 ,  B29D11/00365 ,  B29D11/00442 ,  B41M3/14 ,  B42D25/23 ,  B42D25/24 ,  B42D25/29 ,  B42D25/324 ,  B42D25/342 ,  B42D25/351 ,  B42D25/355 ,  B42D25/378 ,  B42D25/425 ,  B42D25/45 ,  B42D25/455 ,  B42D25/46 ,  B42D25/47 ,  B42D25/48 ,  G02B1/041 ,  G02B3/0006 ,  G02B3/0012 ,  G02B3/0031 ,  G02B3/005 ,  G06K9/3216 ,  G06K9/3275 ,  G06K2009/3225 ,  G06T7/80 ,  G06T2207/30144 ,  H04N1/00267 ,  H04N5/23212 ,  H04N5/247

Abstract: A method of making a security device, comprising: forming an array of primary focusing elements on a first region of a focusing element support layer, by applying at least one transparent curable material either to the focusing element support layer or to a casting tool carrying a surface relief over an area which includes at least the first region, the surface relief comprising portions corresponding to the primary focusing elements; forming the transparent curable material(s) with the casting tool; and curing the transparent curable material(s) so as to retain the surface relief in the first region; wherein the surface relief further includes a plurality of structures of greater depth than the height of the primary focusing elements such that the cured transparent material(s) include a plurality of features protruding above the height of the primary focusing elements between primary focusing elements of the array.

公开(公告)号：US09765941B2

公开(公告)日：2017-09-19

申请号：US14359376

申请日：2012-11-14

Applicant: Mitsubishi Rayon Co., Ltd.

Inventor： Daichi Okuno

IPC: B29D11/00 ,  F21V5/00 ,  G02B3/00 ,  G02B5/02 ,  B29C41/00 ,  B29C41/26 ,  B29C41/32 ,  G02B1/04 ,  H01L51/52 ,  B29K25/00 ,  B29K33/00 ,  B29K35/00 ,  B29K83/00 ,  B29K105/24 ,  B29L11/00

CPC classification number: F21V5/004 ,  B29C41/003 ,  B29C41/26 ,  B29C41/32 ,  B29D11/00355 ,  B29D11/00365 ,  B29D11/00788 ,  B29K2025/04 ,  B29K2033/08 ,  B29K2035/00 ,  B29K2083/00 ,  B29K2105/246 ,  B29L2011/0016 ,  G02B1/041 ,  G02B3/0043 ,  G02B3/0056 ,  G02B5/021 ,  G02B5/0278 ,  G02B2207/113 ,  H01L51/5275

Abstract: An optical film has a plurality of aligned convex microlenses, each of which has a region α and a region β, region β forming the outer part of the convex shape of the microlens and positioned so as to cover region α. Both region α and region β contain a resin, and the refractive index of the resin in region α is higher than the refractive index of the resin in region β; region β contains fine particles, and region α contains fine particles, and the content of the fine particles contained in region α is lower than the content of the fine particles contained in region β; or region α contains fine particles, and region β contains fine particles, and the content of the fine particles contained in region α is higher than the content of the fine particles contained in region β.

公开(公告)号：US20170033153A1

公开(公告)日：2017-02-02

申请号：US15294283

申请日：2016-10-14

Applicant: International Business Machines Corporation

Inventor： Lawrence Jacobowitz ,  Stephen Buchwalter ,  Casimer DeCusatis ,  Peter A. Gruber ,  Da-Yuan Shih

IPC: H01L27/146 ,  G02F1/137 ,  G02B3/00 ,  G02F1/29 ,  H01L33/58 ,  H01L31/0232

CPC classification number: H01L27/14685 ,  B29D11/00365 ,  B29D11/00461 ,  B82Y30/00 ,  G02B3/0018 ,  G02B3/0056 ,  G02F1/137 ,  G02F1/29 ,  H01L27/14627 ,  H01L31/02327 ,  H01L33/58

Abstract: A wafer-scale apparatus and method is described for the automation of forming, aligning and attaching two-dimensional arrays of microoptic elements on semiconductor and other image display devices, backplanes, optoelectronic boards, and integrated optical systems. In an ordered fabrication sequence, a mold plate comprised of optically designed cavities is formed by reactive ion etching or alternative processes, optionally coated with a release material layer and filled with optically specified materials by an automated fluid-injection and defect-inspection subsystem. Optical alignment fiducials guide the disclosed transfer and attachment processes to achieve specified tolerances between the microoptic elements and corresponding optoelectronic devices and circuits. The present invention applies to spectral filters, waveguides, fiber-optic mode-transformers, diffraction gratings, refractive lenses, diffractive lens/Fresnel zone plates, reflectors, and to combinations of elements and devices, including microelectromechanical systems (MEMS) and liquid crystal device (LCD) matrices for adaptive, tunable elements. Preparation of interfacial layer properties and attachment process embodiments are taught.

Abstract translation: 描述了用于在半导体和其他图像显示装置，背板，光电板和集成光学系统上形成，对准和附着微量元件的二维阵列的自动化的晶片级装置和方法。 在有序的制造顺序中，由光学设计的空腔构成的模具板通过反应离子蚀刻或可选的工艺形成，任选地涂覆有释放材料层，并通过自动化流体注入和缺陷检查子系统填充光学特定的材料。 光学校准基准指导所公开的转移和附着过程以实现微光学元件与对应的光电器件和电路之间的特定公差。 本发明适用于光谱滤波器，波导管，光纤模式变压器，衍射光栅，折射透镜，衍射透镜/菲涅耳带片，反射器以及元件和器件的组合，包括微机电系统（MEMS）和液晶器件 （LCD）矩阵，用于自适应，可调元素。 教导界面层性质和附着工艺实施例的制备。

公开(公告)号：US20160061407A1

公开(公告)日：2016-03-03

申请号：US14779619

申请日：2014-02-27

Applicant: MITSUBISHI RAYON CO., LTD.

Inventor： Haruki KOSHITOUGE ,  Daichi OKUNO

IPC: F21V5/00 ,  B29C41/26 ,  B29D11/00

CPC classification number: F21V5/004 ,  B29C41/26 ,  B29C41/28 ,  B29D11/00288 ,  B29D11/00298 ,  B29D11/00365 ,  B29D11/00788 ,  B29K2105/0002 ,  B29K2105/0094 ,  G02B3/0031 ,  G02B3/0043 ,  G02B3/0056

Abstract: An optical film production method for suppressing air bubbles in microlenses, comprising rotating a roll die having a plurality of concave-shaped microlens transfer portions on the surface and running a substrate in the rotation direction; supplying an active energy ray-curable composition β onto a coating roll adjacent to the roll die surface, flattening the composition β, coating the flattened composition β on the roll die surface; supplying an active energy ray-curable composition α on the substrate and coating the composition α on a surface of the substrate; associating the compositions α and β between the roll die and the substrate to form a liquid pool; and irradiating a region between the roll die surface and the substrate surface with an active energy ray so the compositions α and β are sandwiched between the roll die surface and the substrate surface to cure the compositions α and β.

Abstract translation: 一种用于抑制微透镜中的气泡的光学膜的制造方法，其特征在于，使表面上具有多个凹形微透镜转印部的辊片旋转，并使基板沿旋转方向移动。 提供活性能量射线固化组合物＆bgr; 涂覆在与辊模表面相邻的涂布辊上，使组合物变钝;涂布扁平组合物＆bgr; 在辊模表面上; 在基材上供给活性能量射线固化性组合物α，在该基材的表面上涂布组合物α; 将组合物α和＆bgr相关联; 在辊模和衬底之间形成液池; 并且用活性能量射线照射辊模表面和基板表面之间的区域，使组合物α和＆lt; bgr; 夹在辊模表面和基材表面之间以固化组合物α和＆lt; bgr。

公开(公告)号：US20160033681A1

公开(公告)日：2016-02-04

申请号：US14813728

申请日：2015-07-30

Applicant: University of Houston System

Inventor： Wei-Chuan Shih ,  Yu-Lung Sung

IPC: G02B1/04 ,  B29D11/00 ,  G02C7/10 ,  G02B21/02 ,  G02B27/02 ,  G02C7/08

CPC classification number: G02B1/041 ,  B29D11/00365 ,  B29D11/00442 ,  B29D11/0073 ,  B29K2083/00 ,  B29K2105/16 ,  B29K2995/002 ,  B29K2995/0026 ,  B29K2995/0031 ,  G02B21/02 ,  C08L83/04

Abstract: A lithography-free, mold-free, single-step method of fabricating high quality optical lenses by curing polydimethylsiloxane (PDMS) droplets on a pre-heated smooth surface allows lenses with different focal lengths to be made by varying the droplet volume and surface temperature.

Abstract translation: 通过在预加热的光滑表面上固化聚二甲基硅氧烷（PDMS）液滴制造高质量光学透镜的无光刻，无模制的单步法允许通过改变液滴体积和表面温度来制造具有不同焦距的透镜 。

公开(公告)号：US20150304639A1

公开(公告)日：2015-10-22

申请号：US14648346

申请日：2012-07-27

Applicant: Anshyang Albert LIN

Inventor： Anshyang Albert LIN

IPC: H04N13/04 ,  B41F17/00

CPC classification number: H04N13/305 ,  B29D11/00365 ,  B41F17/00 ,  B41M3/003 ,  G02B3/005 ,  G02B27/2214 ,  G03F7/0037 ,  G03F7/027 ,  G03F7/038 ,  G03F7/0388 ,  G03F7/0757 ,  G03F7/165 ,  G09F19/14 ,  H04N2213/001

Abstract: The invention provides a lenticular lens type three-dimensional image display device and a method of fabricating the device without a need for a clear plastic substrate transposed between the image and lenticular lenses. The device can be obtained by directly printing curable coatings onto the image, making them particularly well suited for volume production. The combination the image printing and application of curable coatings process can be joined together to conduct the single pass-process. The single pass-process allows for flexibility of the printing only selective areas of the substrate. Moreover, this process allows the device to be recyclable.

Abstract translation: 本发明提供一种双凸透镜型三维图像显示装置和一种制造该装置的方法，而不需要在图像和双凸透镜之间转置的透明塑料基板。 该装置可以通过将可固化涂层直接印刷到图像上获得，使得它们特别适合于批量生产。 图像打印和可固化涂层工艺的应用的组合可以连接在一起以进行单程过程。 单通道允许仅印刷基板的选择区域的柔性。 此外，该过程允许设备可回收利用。