Patents Examined by Robert E Tallman
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Patent number: 11372197Abstract: A cam for applying movement to a lens system. The cam may include a body configured to couple to the lens system. The body may have slots that are configured to receive lens followers. The slots may extend in directions that are convergent relative to each other.Type: GrantFiled: August 10, 2020Date of Patent: June 28, 2022Assignee: Panavision International, L.P.Inventor: Scott Jason Berkowitz
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Patent number: 11366340Abstract: A liquid crystal cell, a method of driving a liquid crystal cell, and a liquid-crystal-based spectacle lens are provided. The liquid crystal cell includes: a ring-like electrode layer, a liquid crystal layer, and an opposite electrode layer. The second ring-like electrode region is concentric with the first ring-like electrode region and surrounds the first ring-like electrode region; the first ring-like electrode region is configured to drive corresponding liquid crystal molecules in the liquid crystal layer, so as to form a first Fresnel zone plate region in the liquid crystal cell; the second ring-like electrode region is configured to drive corresponding liquid crystal molecules in the liquid crystal layer, so as to form a second Fresnel zone plate region of the liquid crystal cell; an order of the second Fresnel zone plate region is smaller than an order of the first Fresnel zone plate region.Type: GrantFiled: November 19, 2018Date of Patent: June 21, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhongxiao Li, Xiaochuan Chen, Wenqing Zhao, Weili Zhao, Haiyan Wang, Chen Yu Chen
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Patent number: 11347033Abstract: An image capturing lens system, including, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with negative refractive power having at least one of an object-side surface and an image-side surface thereof being aspheric and having at least one inflection point thereof; and a sixth lens element with positive refractive power having both an object-side surface and an image-side surface being convex thereof and at least one of the object-side surface and the image-side surface thereof being aspheric; wherein the image capturing lens system has a total of six lens elements.Type: GrantFiled: December 21, 2020Date of Patent: May 31, 2022Assignee: LARGAN PRECISION CO., LTDInventor: Hsin-Hsuan Huang
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Patent number: 11340387Abstract: A diffusion element is configured by combining: a structure for diffusion constituted by combining periodic surface structures having multiple periods to achieve a light intensity distribution in which the light intensity is uniform at angles less than or equal to a predetermined diffusion angle ? and the light intensity is as close as possible to zero intensity at angles greater than the diffusion angle ?; and a diffractive structure having a period of 1 or more and 2 or less times of ?max, where ?max is the maximum period of the structure for diffusion.Type: GrantFiled: July 31, 2020Date of Patent: May 24, 2022Assignee: NALUX CO., LTD.Inventors: Masato Okano, Daisuke Seki, Kazuya Yamamoto, Makio Nishimaki
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Patent number: 11327326Abstract: The present disclosure discloses a real-time micro/nano optical field generation and manipulation system and method. The system comprises a light source, a spatial filtering unit, an optical 4F system and a light wave manipulation unit, and the optical 4F system comprises a first lens (set) and a second lens (set) sequentially arranged along a light path. The present disclosure achieves real-time modulation on an incident wavefront through a phase element or a phase element assemble. By dynamically manipulating an incident light sub-wavefront, or the light wave modulation optical element, or different areas of the optical element, or different parts of the optical field in an imaging plane and/or the like by the spatial filtering unit, real time light fields with different parameters are generated in the image plane of the system.Type: GrantFiled: November 27, 2017Date of Patent: May 10, 2022Assignee: Soochow UniversityInventors: Yan Ye, Yishen Xu, Linsen Chen
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Patent number: 11327287Abstract: A microscope comprising a first turret bearing a plurality of lenses and a second turret bearing a plurality of filtering modules, the first turret and the second turret being borne on the same pivot and mounted to rotate, independently of each other, about this pivot, each lens of the first turret and each filtering module of the second turret being able to be arranged by rotation of the first turret and of the second turret into an active position of use in which a filtering module of the second turret is inserted into the optical path between a lens of the first turret and a detector.Type: GrantFiled: June 22, 2017Date of Patent: May 10, 2022Assignee: BERTIN TECHNOLOGIESInventors: François Brygo, David Anthoine
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Patent number: 11320623Abstract: Optical assemblies are provided in which an optical element is centered in the cavity of a barrel. The optical element is secured between a seat in the cavity and a retaining ring. The retaining ring has ring threads complementary to the barrel threads. The retaining ring has an abutment surface engaging a peripheral mounting edge of the optical element along a circular edge contact line. In some embodiments, the abutment surface has a frustro-spherical profile having a radius of curvature selected in view of the thread angle to maintain a centering of the optical element even when the retaining ring is decentered in the cavity. In other variants, the abutment surface has a frustro-conical profile having an inclination angle with respect to the center axis of the cavity selected in view of the thread angle to maintain said centering.Type: GrantFiled: February 18, 2020Date of Patent: May 3, 2022Assignee: INSTITUT NATIONAL D'OPTIQUEInventors: Maxime Savard, Frédéric Lamontagne
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Patent number: 11314063Abstract: A zoom lens includes a first lens group with a negative refractive power, a second lens group with a positive refractive power, and an aperture stop disposed in and movable with the second lens group. Each of the first lens group and the second lens group moves individually. The zoom lens further includes a doublet lens disposed on a first side of the aperture stop and between the first lens group and the aperture stop, and at most two lenses including at least one aspheric lens are disposed on a second side of the aperture stop.Type: GrantFiled: July 27, 2020Date of Patent: April 26, 2022Assignee: YOUNG OPTICS INC.Inventors: Hung-You Cheng, Kuo-Chuan Wang, Yu-Hung Chou
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Patent number: 11314102Abstract: A lens driving device is provided, including a base, a holder, a first driving mechanism disposed on the first side of the base, a second driving mechanism disposed on the second side of the base opposite the first side, and a conductive member disposed on the base. The holder is configured to sustain a lens. The first driving mechanism is configured to force the holder to move along the optical axis of the lens. The second driving mechanism includes a circuit board assembly and a shape memory alloy (SMA) wire assembly configured to force the base to move in the plane perpendicular to the optical axis. The conductive member and the circuit board assembly are connected at an electrical connection point, and the SMA wire assembly is closer to the light-incident end of the lens with respect to the electrical connection point.Type: GrantFiled: August 14, 2020Date of Patent: April 26, 2022Assignee: TDK Taiwan Corp.Inventors: Chao-Chang Hu, Chen-Chi Kuo
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Patent number: 11304497Abstract: A magnifying cosmetic mirror may provide a three-point reflection path that may be utilized to apply cosmetics around the eye of a user. The cosmetic mirror may be constructed to have a base mirror and side mirrors extending at angles from opposite sides of the base mirror. The side mirrors may be constructed to provide a reflective view of the eye when placed above the base mirror. The base mirror may also be constructed to provide a reflective view of the eye, and each mirror may be substantially flat.Type: GrantFiled: October 11, 2019Date of Patent: April 19, 2022Assignee: MYJF ENTERPRISES, LLCInventors: Janelle Friedman, Maro Radenovic
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Patent number: 11307392Abstract: Provided is a variable magnification optical system comprising, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, a third lens group G3 having positive refractive power, and a fourth lens group G4; upon zooming from a wide angle end state to a telephoto end state, a distance between the first lens group G1 and the second lens group G2 being varied, a distance between the second lens group G2 and the third lens group G3 being varied, and a distance between the third lens group and the fourth lens group being varied; the third lens group G3 comprising, in order from the object side along the optical axis, a 3a-th lens group G3a having positive refractive power, an aperture S, and a 3b-th lens group G3b having positive refractive power; a lens group having negative refractive power within the 3b-th lens group G3b being used as a vibration reduction lens group and moved so as to include a component iType: GrantFiled: May 28, 2020Date of Patent: April 19, 2022Assignee: Nikon CorporationInventors: Hiroshi Yamamoto, Satoru Shibata
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Patent number: 11300754Abstract: A micro-optical bench includes a substrate having a multi-layer trench and a micro-lens aligned by and mounted to the substrate in the multi-layer trench.Type: GrantFiled: April 22, 2020Date of Patent: April 12, 2022Assignee: HRL Laboratories, LLCInventors: Pamela R. Patterson, Florian G. Herrault, Oleg M. Efimov, Keyvan R. Sayyah
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Patent number: 11300874Abstract: Described herein are embodiments of a diffractive optical element (23) such as a grism. In one embodiment, the diffractive optical element (23) includes an input surface (31) configured to receive an input optical signal (29), a diffractive surface (33) adapted to spatially disperse the input optical beam (29) into a dispersed signal and an output surface (35) configured to output the dispersed signal from the diffractive optical element. The input surface (31) and the diffractive surface (33) are non-parallel and the diffractive surface (33) is formed in situ by a photolithographic technique.Type: GrantFiled: April 11, 2019Date of Patent: April 12, 2022Assignee: II-VI Delaware, Inc.Inventors: Nitesh Gulati, Vincent Choo, Yiwei Xu, Glenn Wayne Baxter, Steven James Frisken
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Patent number: 11294148Abstract: A method for designing freeform surface imaging system comprises: constructing a series of coaxial spherical systems with different optical power (OP) distributions; tilting all optical elements of each coaxial spherical system by a series of angles to obtain a series of off-axis spherical systems; finding all unobscured off-axis spherical systems; and then specifying a system size or structural constraints, and finding a series of compact unobstructed off-axis spherical systems; constructing a series of freeform surface imaging systems based on the series of compact unobstructed off-axis spherical system, and correcting the OP of entire system; improving an image quality of each freeform surface imaging systems and finding an optimal tilt angle of an image surface; and automatically evaluating an image quality of each freeform surface imaging system based on an evaluation metric, and outputting the freeform surface imaging systems that meet a given requirements.Type: GrantFiled: August 20, 2020Date of Patent: April 5, 2022Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jun Zhu, Ben-qi Zhang, Guo-Fan Jin
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Patent number: 11294106Abstract: A unitary optical film stack comprising a light redirecting film assembly; a light diffusion film assembly; and an optical adhesive; wherein the light redirecting film assembly and the light diffusion film assembly are physically coupled non-continuously to minimize optical coupling.Type: GrantFiled: February 10, 2017Date of Patent: April 5, 2022Assignee: 3M Innovative Properties CompanyInventors: Tri D. Pham, Qingbing Wang, Daniel J. Theis, Encai Hao, Keith R. Bruesewitz
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Patent number: 11280937Abstract: An anti-reflective waveguide assembly comprising a waveguide substrate having a first index of refraction, a plurality of diffractive optical elements disposed upon a first surface of the waveguide and an anti-reflective coating disposed upon a second surface of the waveguide. The anti-reflective coating preferably increases absorption of light through a surface to which it is applied into the waveguide so that at least 97 percent of the light is transmitted. The anti-reflective coating is composed of four layers of material having different indices of refraction that the first index of refraction and an imaginary refractive index less than 1×10?3 but preferably less than 5×10?4.Type: GrantFiled: December 10, 2018Date of Patent: March 22, 2022Assignee: Magic Leap, Inc.Inventors: Christophe Peroz, Kevin Messer
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Patent number: 11269119Abstract: A monolithic double diffractive kinoform doublet and a method for making such optical element is disclosed. In one embodiment, the optical element includes a first lens and a second lens. The first lens has a first refractive index. The first lens also has a first surface and a second surface. The first surface is a continuous, potentially flat surface for optical radiation to enter. The second lens has a second refractive index different from the first refractive index. The second lens has a first surface and a second surface. The first surface is in contact with the second surface of the first lens. The optical element has a peak diffraction efficiency at a first wavelength and at a second wavelength different than the first wavelength.Type: GrantFiled: October 30, 2019Date of Patent: March 8, 2022Assignee: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventor: Kim W. Larsen
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Patent number: 11262796Abstract: Eyewear is provided including a frame, and a camera connected with the frame, in which the camera is configured to be controlled by a remote controller. The camera may be configured to capture video and/or a photo. The eyewear may include data storage, and the camera may be connected to the data storage. A wristwatch may be configured to act both as a time piece and a controller of the camera. The eyewear may also include a heads-up display and/or a video file player. The eyewear may also include an electro-active lens.Type: GrantFiled: December 3, 2018Date of Patent: March 1, 2022Assignee: e-Vision Smart Optics, Inc.Inventors: Ronald D. Blum, William Kokonaski, Dwight P. Duston
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Patent number: 11254098Abstract: A composite light blocking sheet includes a first surface layer, a second surface layer, an inside substrate layer and a central axis. The first surface layer has a first opening and a first outer surface connected to the first opening. The second surface layer has a second opening and a second outer surface connected to the second opening. The inside substrate layer has a substrate opening and is disposed between the first surface layer and the second surface layer and connects the first surface layer and the second surface layer. The central axis is coaxial with the first opening, the second opening and the substrate opening. More than 95% of the first outer surface has a first gloss being GU1, more than 95% of the second outer surface has a second gloss being GU2, and the first gloss GU1 and the second gloss GU2 satisfy specific conditions.Type: GrantFiled: April 24, 2020Date of Patent: February 22, 2022Assignee: LARGAN PRECISION CO., LTD.Inventors: Cheng-Feng Lin, Ming-Ta Chou
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Patent number: 11256005Abstract: An apparatus and system for a display screen for use in near-eye display devices. Small light emitting devices are placed behind a plurality of light-directing beads. The light emitting devices and light-directing beads for a display device and system placed in front of a user for near-eye display. This allows a user to experience near-eye display with greater resolution, wider field of view and faster frame rate. Other embodiments are described herein.Type: GrantFiled: June 10, 2019Date of Patent: February 22, 2022Assignee: Soliddd Corp.Inventors: Richard A. Muller, Neal Weinstock