公开(公告)号：US20190293486A1

公开(公告)日：2019-09-26

申请号：US16306659

申请日：2017-05-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. WHEATLEY ,  Gilles J. BENOIT ,  Guanglei DU ,  Rolf W. BIERNATH ,  Sara Suzanne MERRITT ,  James HILLIS ,  Owen M. ANDERSON ,  Timothy J. NEVITT

IPC: G01J1/04 ,  G01J1/20 ,  G01J3/12 ,  G01J3/46 ,  G01N21/31 ,  G02B5/136 ,  G01J3/28

Abstract: In an example, an example article may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

公开(公告)号：US20220057258A1

公开(公告)日：2022-02-24

申请号：US17515687

申请日：2021-11-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. WHEATLEY ,  Gilles J. BENOIT ,  Guanglei DU ,  Rolf W. BIERNATH ,  Sara Suzanne MERRITT ,  James HILLIS ,  Owen M. ANDERSON ,  Timothy J. NEVITT

IPC: G01J1/04 ,  G01J1/20 ,  G01J3/12 ,  G01J3/28 ,  G01J3/46 ,  G01N21/31 ,  G02B5/136 ,  G01J3/51

Abstract: A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

公开(公告)号：US20160037144A1

公开(公告)日：2016-02-04

申请号：US14775758

申请日：2014-03-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John C. SCHULTZ ,  Eric C. LOBNER ,  Robert W. SHANNON ,  Glenn E. CASNER ,  Quinn D. SANFORD ,  Rolf W. BIERNATH

IPC: H04N9/31

CPC classification number: H04N9/3185 ,  G03B21/10 ,  G03B21/28 ,  G03B21/625 ,  H04N9/3194

Abstract: A projection system (400) capable of projection alignment includes a projector (410), a shaped projection screen (420), one or more alignment marks (425), an image sensor (430), and a processing unit (440). The projector is configured to project an image. The shaped projection screen is configured to receive the projected image and display the projected image, the projector having a projection area (415) on the shaped projection screen. The one or more alignment marks are proximate to a border of the projection screen. The image sensor is configured to capture an image of the shaped projection screen and generate a sensor signal corresponding to the captured image. The processing unit is electronically coupled to the image sensor and configured to receive the sensor signal and determine the positions of the one or more alignment marks based on the sensor signal.

Abstract translation: 能够投影对准的投影系统（400）包括投影仪（410），成形投影屏幕（420），一个或多个对准标记（425），图像传感器（430）和处理单元（440）。 投影机配置为投影图像。 成形投影屏被配置为接收投影图像并显示投影图像，投影仪在投影屏幕上具有投影区域（415）。 一个或多个对准标记靠近投影屏幕的边界。 图像传感器被配置为捕获成形投影屏幕的图像并且生成与所捕获的图像相对应的传感器信号。 处理单元电耦合到图像传感器并且被配置为接收传感器信号并且基于传感器信号确定一个或多个对准标记的位置。

公开(公告)号：US20140071658A1

公开(公告)日：2014-03-13

申请号：US14082788

申请日：2013-11-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael F. WEBER ,  Timothy J. NEVITT ,  John A. WHEATLEY ,  Rolf W. BIERNATH ,  David G. FREIER ,  Gilles J. BENOIT ,  Charles D. HOYLE ,  Andrew J. OUDERKIRK ,  Zhaohui YANG

IPC: F21V7/00 ,  F21K99/00

CPC classification number: F21V7/00 ,  F21K9/60 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0096 ,  G02F1/133605 ,  G02F1/133606 ,  G02F1/133611 ,  G02F1/133615 ,  G02F1/13362

Abstract: A recycling cavity such as used in a backlight or similar extended area source includes a front and back reflector, the front reflector being partially transmissive to provide an output illumination area. The recycling cavity also includes a component that provides the cavity with a balance of specular and diffuse characteristics so as to balance cavity efficiency and brightness uniformity over the output area. The component can be characterized by a transport ratio of greater than 15% for a 15 degree incidence angle, and less than 95% for a 45 degree incidence angle.

Abstract translation: 诸如用在背光源或类似的延伸区域源中的回收腔包括前反射器和后反射器，前反射器是部分透射的，以提供输出照明区域。 回收腔还包括为空腔提供镜面和漫反射特性的平衡的部件，以便在输出区域上平衡空腔效率和亮度均匀性。 该组件的特征可以在15度入射角下的传输比大于15％，对于45度入射角小于95％。