公开(公告)号：US12043055B2

公开(公告)日：2024-07-23

申请号：US17382513

申请日：2021-07-22

申请人： Hans-Erich Gubela, Jr.

发明人： Hans-Erich Gubela, Jr.

IPC分类号： B42D25/328 ,  G02B5/122 ,  G06K7/14 ,  G06K19/06

CPC分类号： B42D25/328 ,  G02B5/122 ,  G06K7/1426 ,  G06K19/06065

摘要： A retroreflective element, for example a retroreflector or a retroreflective film, includes a regular arrangement of multiple reflective triples, each having three side surfaces that form an angle between 88° and 92°, preferably between 89° 50′ and 90° 10′ relative to one another, and particularly preferably stand perpendicularly on one another. At least one selected triple in the arrangement has a security element having at least one diffractive structure on at least one first side surface. A modulation depth of the security element is selected in such a manner that the security element cannot be perceived when the retroreflective element is illuminated at an illumination angle

公开(公告)号：US11899421B2

公开(公告)日：2024-02-13

申请号：US16408557

申请日：2019-05-10

申请人： TRUMPF Laser-und Systemtechnik GmbH

发明人： Matthias Allenberg-Rabe ,  Jürgen Ortmann

IPC分类号： G05B19/401 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/082 ,  B23K26/354 ,  B23K26/34 ,  B23K26/342 ,  G02B26/10 ,  B29C64/268 ,  B29C64/153 ,  B22F10/31 ,  B22F12/49 ,  G01S5/16 ,  G02B5/122 ,  G02B27/62 ,  G02B7/00 ,  B22F10/28 ,  B22F12/41 ,  B22F12/44

CPC分类号： G05B19/401 ,  B22F10/31 ,  B22F12/49 ,  B23K26/082 ,  B23K26/34 ,  B23K26/342 ,  B23K26/354 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G02B26/101 ,  B22F10/28 ,  B22F12/41 ,  B22F12/44 ,  B22F2998/10 ,  B22F2999/00 ,  G01S5/16 ,  G02B5/122 ,  G02B7/003 ,  G02B27/62 ,  G05B2219/49018 ,  Y02P10/25 ,  B22F2999/00 ,  B22F12/49 ,  B22F2203/03

摘要： The present disclosure relates to calibrating scanner devices for positioning laser beams in a processing field, and includes, e.g.: arranging a retroreflector in the processing field of the scanner device, the processing field being formed in a processing chamber for irradiating powder layers; detecting laser radiation reflected back into the scanner device when the laser beam passes over the retroreflector; determining an actual position of the laser beam in the processing field using the detected laser radiation; and calibrating the scanner device by correcting a laser beam target position specified for the scanner device in the processing field using the determined actual position of the laser beam in the processing field.

公开(公告)号：US11788822B2

公开(公告)日：2023-10-17

申请号：US16936944

申请日：2020-07-23

申请人： Raytheon Company

发明人： Jason R. Lavine ,  Stephen F. Sagan ,  Brian M. Graue ,  Justin Paul

IPC分类号： F41H13/00 ,  G01B11/27 ,  G02B5/10 ,  G02B5/122 ,  G02B27/10

CPC分类号： F41H13/0062 ,  G01B11/272 ,  G02B5/10 ,  G02B5/122 ,  G02B27/108

摘要： A laser sensor system including a common optical bench that is configured to receive and process different beams of a high energy laser (HEL). The common optical bench is configured to handle the different beams using a modular set of optical components. Optical components of the common optical bench include a filtering device configured to reduce the power of the beams, a common collecting optical element that is configured to set an imaging position and focal length for the beams, a position sensitive detector (PSD) arrangement that is configured to measure angular and positional errors in the beams, and various compaction optical elements, such as mirrors, that are configured to enable compaction of the laser sensor system by increasing the focal length of the beams.

公开(公告)号：US11774773B1

公开(公告)日：2023-10-03

申请号：US18082370

申请日：2022-12-15

申请人： CTL Analyzers LLC

发明人： Ryan Grainger ,  Ryan Bischof

IPC分类号： G02B5/122 ,  G02B27/14 ,  G02B21/16

CPC分类号： G02B27/141 ,  G02B5/122 ,  G02B21/16

摘要： Embodiments of this disclosure comprise of an optical cube, a light source, a cube holder connection point, a plurality of pins, a plurality of cavities sized and configured to receive said pins, a magnet, and a magnetic element located to attract and adhere to said magnet. An optical device with coaxial illumination for reflected light and fluorescence detection includes one or more optical cubes to redirect light along the optical axis. The cube holder connection point can be in a fixed position, moved translationally, or moved rotationally to engage a cube within the optical device. An optical cube can be attached to the cube holder connection point utilizing locating pins and magnetic coupling to constrain all 6 degrees of freedom. Use of such devices reduces the need to use screws or other locking hardware and permits a larger number of optical cubes to be inserted in the same area and makes it easier to exchange optical cubes.

公开(公告)号：US20230288618A1

公开(公告)日：2023-09-14

申请号：US17851099

申请日：2022-06-28

申请人： NEC Corporation Of America

发明人： Tsvi LEV ,  Hagai HAR-GIL

IPC分类号： G02B5/122 ,  G02B5/126

CPC分类号： G02B5/122 ,  G02B5/126

摘要： There is provided a retroreflector device, comprising: an incident object made of a material transparent to electromagnetic radiation, the incident object designed to refract an incident ray hitting an incident surface to generate a refracted ray that hits a back surface, and a retroreflective surface positioned in proximity to the back surface of the incident object, wherein the retroreflective surface and the incident object are configured to refract the incident ray to generate the refracted ray for hitting the retroreflective surface at an angle of incidence below a threshold.

公开(公告)号：US20230059392A1

公开(公告)日：2023-02-23

申请号：US17405092

申请日：2021-08-18

申请人： Oren Aharon

发明人： Oren Aharon

IPC分类号： G02B5/122

摘要： To achieve a highly accurate device for back-reflecting a beam with high accuracy over a large lateral offset, an apparatus is disclosed which reflects an incoming beam or image, allowing the reflected beam to be accurately deflected at an angle of 180 degrees over a large offset distance. The reflections inside the device are caused by an accurate 90 degrees reflection on its one end, towards opposite reflecting mirrors which will further bend the beam an additional 90 degrees, creating a total deflection of an incoming beam to be parallel and laterally deflected in respect to the original direction of the incoming beam. The two opposite transmitting and bending surfaces could be based on two mirrors on each end, and preferable at relative angles similar to existing pentaprisms. The said bending mirror surfaces on each end could be coated with anti-reflection coating or with reflection-improving metal coatings.

公开(公告)号：US11385453B2

公开(公告)日：2022-07-12

申请号：US16504683

申请日：2019-07-08

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Freddie Santiago ,  Carlos Font

IPC分类号： G02B26/00 ,  G02B5/122

摘要： An apparatus includes an adaptive retro-reflector device. The adaptive retro-reflector device includes a standard retro-reflector. In operation, the retro-reflector receives an incident optical signal and outputs a returned optical signal. The returned optical signal exhibits a divergence. The adaptive retro-reflector device includes an elastomeric interface. The elastomeric interface is in optical communication with the retro-reflector such that the incident optical signal passes through the elastomeric interface to the retro-reflector and such that the returned optical signal from the retro-reflector passes through the elastomeric interface. The elastomeric interface includes an interface surface. The apparatus includes a standard actuator. The actuator in operation communicates with the elastomeric interface so as to deform the interface surface, thereby controlling the divergence. Optionally, the elastomeric interface includes a standard elastomeric membrane and a standard optically transparent optical fluid. The optically transparent optical fluid is at least partially encapsulated by the elastomeric membrane.

公开(公告)号：US10655952B2

公开(公告)日：2020-05-19

申请号：US15782464

申请日：2017-10-12

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Naohide Wakita

IPC分类号： G01B11/14 ,  G01K11/00 ,  G01C9/12 ,  G01D5/30 ,  G01D5/28 ,  G01C9/06 ,  G01C9/18 ,  G01K5/62 ,  G06T7/73 ,  G01N13/02 ,  G01N27/30 ,  G01S13/89 ,  G02B5/122 ,  G02B5/132 ,  H04N5/225 ,  H04N7/18 ,  G01S13/90 ,  G01S13/75

摘要： A state visualizer according to one aspect of the present disclosure includes an optical member including a fixed part that has a fixed relative positional relationship with an object to be measured and a movable part that is movably supported by the fixed part and keeps a constant angle with respect to a gravity direction, the optical member retroreflecting a light or an electromagnetic wave in a case where the fixed part and the movable part are in a predetermined positional relationship. The optical member changes an intensity of the light or the electromagnetic wave reflected in a retroreflection direction in accordance with a change of a relative positional relationship between the fixed part and the movable part.

公开(公告)号：US10649117B1

公开(公告)日：2020-05-12

申请号：US15818809

申请日：2017-11-21

申请人： Triad National Security, LLC ,  Government of the United States of America as represented by the Secretary of the Air Force

发明人： John Lewellen ,  John Harris

IPC分类号： G02B5/122 ,  G02B26/08

摘要： A “multicube” retroreflector may include “nested” corner cubes. Such a design combines the ease of fabrication of conventional corner cubes (e.g., stamping from a sheet) and the ability to easily and densely package them with a greater range of angles over which light will be reflected back towards the source. Such multicube retroreflectors may reflect 50% more light than corner cube retroreflectors. A retroreflector, or an array of retroreflectors, may be used as part of a communication system. A modulated retroreflector or an array thereof can form the basis of a unique communication system. For instance, by using a modulated retroreflector, or an array of such retroreflectors, a host system (e.g., an aircraft) can receive data from a remote system (e.g., a drone, an air-dropped sensor package, etc.) in a way that is difficult to intercept, and minimizes the power, computation, and antenna pointing requirements for the remote system.

公开(公告)号：US10575476B2

公开(公告)日：2020-03-03

申请号：US15136459

申请日：2016-04-22

申请人： Elwha LLC

发明人： William David Duncan ,  Roderick A. Hyde ,  Muriel Y. Ishikawa ,  Lowell L. Wood, Jr.

IPC分类号： G02F1/03 ,  G02B5/122 ,  G02B5/02 ,  G02B27/10 ,  G02B5/04 ,  A01G22/00 ,  G02B27/14 ,  G02B5/124 ,  G02B19/00 ,  A01G15/00 ,  G02F1/01 ,  A01G9/24

摘要： Provided is a reflective article including a first reflecting material and a second retro reflecting material; where sunlight that is photosynthetically active is at least partially reflected by the article and sunlight that is not photosynthetically active is at least partially retro reflected by the article. Also provided is a method for growing a plant, where the method includes placing the reflective article under, around, or in the proximity of the plant.