公开(公告)号：US12235458B2

公开(公告)日：2025-02-25

申请号：US18734641

申请日：2024-06-05

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Changwon Jang ,  Sandro Pintz

IPC: G02B27/01 ,  G02B3/14 ,  G02B5/30 ,  G02B26/00

Abstract: A varifocal liquid lens includes a body filled with two different fluids separated by an interface of a variable curvature across a clear aperture of the varifocal liquid lens. At least one of the first or second fluids is birefringent, such that a refractive index difference between the first and second fluids and resulting optical power of the varifocal liquid lens is dependent on polarization of impinging light. At a first light polarization, the first and second fluids may be matched in refractive index, while at a second, orthogonal light polarization, the first and second fluids may be mismatched in refractive index, whereby the first interface between the first and second fluids may have a variable, non-zero optical power for the second polarization while having a substantially non-variable, zero optical power for the first polarization of light.

公开(公告)号：US12216268B2

公开(公告)日：2025-02-04

申请号：US18175391

申请日：2023-02-27

Applicant: SONY GROUP CORPORATION

Inventor： Takuma Tanae ,  Hideki Nakamaru

IPC: G02B26/02 ,  G02B5/20 ,  G02B26/00 ,  G02B27/28

Abstract: The present disclosure relates to a filter unit, a filter selection method, and an imaging device that allow continuously changing a transmittance of an ND filter and switching between filters to be performed more easily. A disk provided with a plurality of filters including an ND filter having a continuously variable transmittance is rotated to cause a filter corresponding to a rotational orientation of the disk among the plurality of filters provided on the disk to be arranged on an optical axis of incident light toward an image sensor. The present disclosure can be applied to, for example, a filter unit, an imaging device, electronic equipment, a filter selection method, a program, or the like.

公开(公告)号：US12216266B2

公开(公告)日：2025-02-04

申请号：US17171988

申请日：2021-02-09

Applicant: Gholam A. Peyman

Inventor： Gholam A. Peyman

IPC: A61B3/10 ,  A61B1/00 ,  A61B3/00 ,  A61B3/12 ,  A61B3/14 ,  A61F2/16 ,  G02B1/06 ,  G02B3/14 ,  G02B7/28 ,  G02B26/00 ,  G02B26/08 ,  G02C5/00 ,  G02C7/04 ,  G02C7/08 ,  G03B13/32 ,  H04N23/67

Abstract: Fluidic glasses for correcting refractive errors of a human or animal are disclosed herein. The fluidic glasses includes at least one flexible fluidic lens having an outer housing and a flexible membrane supported within the outer housing, the flexible membrane at least partially defining a chamber that receives a fluid therein; and a fluid control system operatively coupled to the at least one flexible fluidic lens, the fluid control system configured to insert an amount of the fluid into the chamber of the at least one flexible fluidic lens, or remove an amount of the fluid from the chamber of the at least one flexible fluidic lens, in order to change the shape of the at least one flexible fluidic lens in accordance with the amount of fluid therein, thereby correcting the refractive errors of an eye of a human or animal.

公开(公告)号：US12189258B2

公开(公告)日：2025-01-07

申请号：US18331304

申请日：2023-06-08

Applicant: Apple Inc.

Inventor： Michael W. Firka ,  Ashley E. Fletcher ,  Benjamin J. Pope ,  Lee E. Hooton ,  Scott A. Myers ,  Benjamin Shane Bustle ,  Garam Young ,  Blake M. Coughenour

IPC: G02F1/137 ,  G02B26/00 ,  G02F1/133 ,  G09G3/34 ,  G09G3/36

Abstract: An electronic device has an electrically adjustable shutter. The shutter may be placed in a transparent state or a nontransparent state. The shutter may overlap a portion of a display, may overlap a liquid contact indictor or a structure with text in a device, or may overlap an optical component such as an optical proximity sensor, ambient light sensor, visible light-emitting diode or laser, infrared light-emitting diode or laser, visible light image sensor, or infrared light image sensor. Control circuitry in the electronic device may place the shutter in an opaque state to hide an overlapped component from view or may place the shutter in a transparent state to allow the overlapped component to transmit or receive light. The adjustable shutter may exhibit changes in its transmission spectrum in different modes of operation and may be used as a camera filter or neutral density filter.

公开(公告)号：US12189113B2

公开(公告)日：2025-01-07

申请号：US17414462

申请日：2019-09-09

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Andreas Durandi ,  Helmut Teichmann

IPC: G02B26/00

Abstract: Provided is a monitor device used with a Fabry-Perot interference filter having a pair of mirror parts and a pair of driving electrodes, and having a distance between the mirror parts changed in accordance with charges stored between the driving electrodes. The monitor device includes: a current application unit that applies an AC current having a frequency higher than a resonant frequency of the mirror parts across the driving electrodes; a voltage detection unit that detects a temporal development of a voltage generated between the driving electrodes during application of the AC current; a control unit that controls the AC current across the driving electrodes, based on an evaluation of a DC component of the voltage detected by the voltage detection unit; and a monitor unit that monitors the distance between the mirror parts based on an AC component of the voltage detected by the voltage detection unit.

公开(公告)号：US20250003574A1

公开(公告)日：2025-01-02

申请号：US18638572

申请日：2024-04-17

Applicant: Qisda Corporation

Inventor： Chih-Shiung Chien ,  Ming-Kuen Lin ,  Tsung-Hsun Wu

IPC: F21V9/30 ,  F21V5/00 ,  F21V7/04 ,  F21V14/04 ,  G02B26/00

Abstract: A light source module includes a wavelength conversion unit, a first lens, a second lens, a light path turning device, and a light-emitting device. The first lens is disposed in front of the wavelength conversion unit. The second lens is disposed in front of the first lens. The light path turning device is disposed beside the second lens, and not on an optical axis of the first lens. The light-emitting device is configured to emit a first beam. The first beam is sequentially turned by the light path turning device and penetrates through the first lens to be transmitted to the wavelength conversion unit. The wavelength conversion unit is configured to convert the first beam into a second beam. A wavelength of the first beam is different from that of the second beam. The second beam penetrates through the first lens and the second lens sequentially.

公开(公告)号：US20240418981A1

公开(公告)日：2024-12-19

申请号：US18813478

申请日：2024-08-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Tomonori MATSUSHITA ,  Nozomu HIROKUBO

IPC: G02B26/00 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/26 ,  G01J3/28 ,  G01J3/32 ,  G01J3/42 ,  G01J3/50

Abstract: An optical module includes a wavelength variable interference filter having a fixed reflective film, a movable reflective film which faces the fixed reflective film with a gap between reflective films interposed therebetween, and an electrostatic actuator that changes the gap between reflective films, and a gap control unit that controls the electrostatic actuator. The gap control unit controls the electrostatic actuator on the basis of an order which is set in accordance with a wavelength to be measured, and changes the gap between the reflective films.

公开(公告)号：US12169290B2

公开(公告)日：2024-12-17

申请号：US18315779

申请日：2023-05-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Katherine Marie Smyth ,  Andrew John Ouderkirk

IPC: G02C7/02 ,  G02B1/10 ,  G02B3/12 ,  G02B3/14 ,  G02B26/00 ,  G02B26/06 ,  G02B26/08 ,  G02B27/01 ,  G02C7/06 ,  G02F1/1362 ,  G02B3/00 ,  G02B3/04 ,  G06F3/01

Abstract: The disclosed optical lens assemblies may include a pre-strained deformable element that exhibits a non-uniform mechanical strain or stress profile, a structural support element coupled to the pre-strained deformable element, and a deformable medium positioned between the pre-strained deformable element and the structural support element. Related head-mounted displays and methods of fabricating such optical lens assemblies are also disclosed.

公开(公告)号：US20240402585A1

公开(公告)日：2024-12-05

申请号：US18665511

申请日：2024-05-15

Applicant: Coretronic Corporation

Inventor： Jia-Hong Dai ,  Te-Ying Tsai ,  Shao-Peng Su

IPC: G03B21/20 ,  G02B26/00

Abstract: A wavelength conversion module includes a wavelength conversion unit, a support bracket, a lens holder, a condenser lens, and a thermally conductive material. The wavelength conversion unit is disposed on the support bracket. The lens holder is disposed on the support bracket, and has an accommodation space to accommodate the condenser lens. An inner wall of the lens holder is arranged with a bearing surface. The condenser lens has an annular assembly surface. The condenser lens is disposed on the bearing surface through the annular assembly surface to be fixed to the lens holder. The thermally conductive material is disposed between the annular assembly surface of the condenser lens and the bearing surface of the lens holder to transfer heat from the condenser lens to the lens holder.

公开(公告)号：US12147030B2

公开(公告)日：2024-11-19

申请号：US17317059

申请日：2021-05-11

Applicant: II-VI Delaware, Inc

Inventor： Jiang-Huai Zhou ,  Glenn D Bartolini

IPC: G02B26/08 ,  G01J3/26 ,  G02B7/188 ,  G02B26/00 ,  G02B26/02

Abstract: An optoelectronic device, including a tunable optical filter or tunable optical filter with photodiode, uses voltage differentials to filter an optical signal passing along an optical path. A membrane has an electrode and is disposed adjacent a fixed mirror and another. A central portion of the membrane is distanced from the fixed mirror and has an aperture in which a second mirror is disposed. This second mirror translates with the membrane at a freespace gap relative to the fixed mirror when the electrodes are subject to the voltage differentials. In turn, the freespace gap is configured as a Fabry-Perot etalon to pass one or more spectral frequencies of the optical signal along the optical path. The membrane is shaped and reinforced to limit possible bowing. The translatable mirror in the aperture of the membrane is also shaped and reinforced to limit it from possible bowing as well.