Patents by Inventor Daozhi Wang
Daozhi Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240127186Abstract: An interaction method and apparatus and an electronic device. The method comprises: displaying a first application interface, wherein the first application interface comprises an interface of a first application; and creating a second application account in the first application interface, wherein the second application account is used for logging in a second application. Therefore, a new interaction mode is provided.Type: ApplicationFiled: December 21, 2023Publication date: April 18, 2024Inventors: Xiaoping ZHANG, Yunsheng HAO, Jialu WANG, Yi WEI, Pengzhan XU, Guichao REN, Boyu ZHOU, Zitian GUO, Yuxiang LI, Jieli LIANG, Xiaofei GAO, Daozhi LIN, Hong ZOU, Wentao LIU, Zheng CHEN, Shanshan LING
-
Publication number: 20230324669Abstract: According to examples, an optical lens assembly for head-mount display (HMD) devices may include an optical lens configuration with a first optical element and a second optical element. The first optical element and the second optical element may be affixed together along a peripheral edge to form a gap between the two optical elements and may compensate chromatic dispersion characteristics. The optical lens configuration may also include a reflective polarizer layer, a quarter wave layer, and a semi-transparent mirror provided on selected surfaces of the optical elements. In some examples, the gap may be filled with air or an inert gas.Type: ApplicationFiled: April 7, 2022Publication date: October 12, 2023Applicant: Meta Platforms Technolgies, LLCInventors: Zhisheng YUN, Ying GENG, Fei LIU, Daozhi WANG, Yanming ZHAO, Yusufu Njoni Bamaxam SULAI
-
Patent number: 11703709Abstract: An optical element includes a linear polarizer layer and a transparent optical layer. The linear polarizer layer includes surfaces waviness and the transparent optical layer smooths the surfaces waves of the linear polarizer layer.Type: GrantFiled: February 2, 2021Date of Patent: July 18, 2023Assignee: Meta Platforms Technologies, LLCInventors: Jianing Yao, Daozhi Wang, Silvio Grespan, Weihua Gao, Chia-Hsuan Tai, Shizhe Shen, John Robert Volk, Richard Han Soo Cho
-
Patent number: 11327266Abstract: A housing assembly for mounting a first lens and a second lens includes a first lens holder. The first lens holder includes a ring-shaped structure configured to mount the first lens. The housing assembly also includes a second lens holder including a cup-shaped structure. The cup-shaped structure includes an upper portion configured to mount the first lens holder, and a lower portion configured to mount the second lens.Type: GrantFiled: March 15, 2019Date of Patent: May 10, 2022Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Aiqing Chen, Weihua Gao, Daozhi Wang, Ashvath Sharma, Matthew Erich, Mark Alan Tempel
-
Publication number: 20220026663Abstract: A method includes assembling a first lens and a second lens to form a first optical assembly in a first assembly and validation line; testing the first optical assembly in the first assembly and validation line; securing a coupling between the first lens and the second lens if a testing result satisfies a predetermined condition; and disassembling the first optical assembly into the first lens and the second lens if the testing result does not satisfy the predetermined condition; The method also includes prior to stacking the first lens and the second lens to form a second optical assembly, adjusting at least one of an optical center, a tilt, or a polarimetric angle of at least one of the first lens or the second lens in a second assembly and validation line; and stacking the first lens and the second lens to form the second optical assembly.Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Inventors: Aiqing CHEN, Weihua GAO, Daozhi WANG
-
Patent number: 11169354Abstract: A method for assembling a first lens and a second lens is provided. The method includes performing an optical center measurement for at least one of the first lens or the second lens, and performing an optical center adjustment when the optical center measurement does not satisfy a predetermined optical center condition. The method also includes performing a polarimetric measurement for at least one of the first lens or the second lens, and performing a polarimetric angle adjustment when the polarimetric measurement does not satisfy a predetermined polarimetric condition. The method further includes assembling the first lens and the second lens to form an optical assembly.Type: GrantFiled: March 15, 2019Date of Patent: November 9, 2021Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Aiqing Chen, Weihua Gao, Daozhi Wang
-
Patent number: 10955688Abstract: The disclosed method may include (1) providing, from a display, an image to an eye by way of a lens assembly on an optical path between the display and the eye, wherein the lens assembly includes (a) a first liquid crystal lens providing a first electronically controllable cylindrical power, oriented along a first constant axis, in response to a first signal and (b) a second liquid crystal lens providing a second electronically controllable cylindrical power, oriented along a second constant axis that is rotationally offset from the first constant axis, in response to a second signal, (2) determining, based on information indicating cylindrical power and cylindrical axis components, the electronically controllable cylindrical powers that result in providing the cylindrical power component, oriented along the cylindrical axis component, and (3) generating, based on the electronically controllable cylindrical powers, the signals. Various other systems and methods are also disclosed.Type: GrantFiled: September 18, 2020Date of Patent: March 23, 2021Assignee: Facebook Technologies, LLCInventors: Evan M. Richards, Weihua Gao, Daozhi Wang
-
Patent number: 10788685Abstract: The disclosed system may include (1) a lens assembly that provides an electronically controllable cylindrical power, oriented along an electronically controllable axis, on an optical path between a display device and an eye of a viewer in response to at least one first control signal, and (2) a controller that (a) receives information indicating a cylindrical power component and a cylindrical axis component of an eyeglass prescription for the viewer, and (b) generates, based on the information, the at least one first control signal to cause the lens assembly to provide the cylindrical power component, oriented along the cylindrical axis component, for the viewer. Various other systems and methods are also disclosed.Type: GrantFiled: February 27, 2018Date of Patent: September 29, 2020Assignee: Facebook Technologies, LLCInventors: Evan M. Richards, Weihua Gao, Daozhi Wang
-
Publication number: 20200292777Abstract: A housing assembly for mounting a first lens and a second lens includes a first lens holder. The first lens holder includes a ring-shaped structure configured to mount the first lens. The housing assembly also includes a second lens holder including a cup-shaped structure. The cup-shaped structure includes an upper portion configured to mount the first lens holder, and a lower portion configured to mount the second lens.Type: ApplicationFiled: March 15, 2019Publication date: September 17, 2020Inventors: Aiqing CHEN, Weihua GAO, Daozhi WANG, Ashvath SHARMA, Matthew ERICH, Mark Alan TEMPEL
-
Publication number: 20200292776Abstract: A method for assembling a first lens and a second lens is provided. The method includes performing an optical center measurement for at least one of the first lens or the second lens, and performing an optical center adjustment when the optical center measurement does not satisfy a predetermined optical center condition. The method also includes performing a polarimetric measurement for at least one of the first lens or the second lens, and performing a polarimetric angle adjustment when the polarimetric measurement does not satisfy a predetermined polarimetric condition. The method further includes assembling the first lens and the second lens to form an optical assembly.Type: ApplicationFiled: March 15, 2019Publication date: September 17, 2020Inventors: Aiqing CHEN, Weihua GAO, Daozhi WANG
-
Patent number: 10509237Abstract: A contact lens has a central region and an annular region surrounding the central region, the central region having a first optical power and the annular region having a second optical power. In a method of measuring the add power, the wavefront aberration of the contact lens is measured; a polynomial is fitted to the measured wavefront aberration. Terms of the polynomial correspond to types of aberration comprising defocus and astigmatism and residual aberrations. The add power is calculated as a defocus corresponding to the residual aberrations.Type: GrantFiled: April 20, 2018Date of Patent: December 17, 2019Assignee: CooperVision International Holding Company, LPInventors: Daozhi Wang, Laura Horan
-
Patent number: 10511832Abstract: A method for calibrating includes obtaining a head-mounted display device that includes an electronic display having an array of display elements and an array of beam steerers located over an inner left portion and an inner right portion of the electronic display. The method also includes obtaining alignment information by selecting a first respective subset of the array of display elements and causing it to emit light, and determining whether the light is received by a first optical sensor in a first position or a second optical sensor in a second position, thereby determining whether the first respective subset of the array of display elements is aligned for the first or the second optical sensor. The method also includes repeating the selecting, causing, and determining operations for a second subset of the array of display elements, and storing the alignment information for calibrating images for presentation by the electronic display.Type: GrantFiled: February 14, 2018Date of Patent: December 17, 2019Assignee: Facebook Technologies, LLCInventors: Shizhe Shen, Daozhi Wang, Kurt Jenkins
-
Patent number: 10444512Abstract: An optical characterization system tests optical elements of head-mounted displays (HMD) such as lenses. The system emits a test pattern of light through an aperture of a hollow truncated cone. The hollow truncated cone may be rotated to different angles of test positions, for example, to mimic rotation of a human eye of a user wearing an HMD. The emitted light is refracted by a test lens and captured by a detector assembly. Using images captured by the detector assembly, the system determines one or more quality metrics of the test lens. Quality metrics may describe various types of optical aberrations, which may be determined as a function of the test positions (e.g., angle and/or position of the hollow truncated cone relative to the test lens). In addition, the system may generate an optical profile of the test lens using the quality metrics.Type: GrantFiled: January 9, 2018Date of Patent: October 15, 2019Assignee: Facebook Technologies, LLCInventors: Daozhi Wang, Ning Yeung Chan, Youngshik Yoon, Shizhe Shen, Torin Ross Herndon
-
Publication number: 20190265514Abstract: The disclosed system may include (1) a lens assembly that provides an electronically controllable cylindrical power, oriented along an electronically controllable axis, on an optical path between a display device and an eye of a viewer in response to at least one first control signal, and (2) a controller that (a) receives information indicating a cylindrical power component and a cylindrical axis component of an eyeglass prescription for the viewer, and (b) generates, based on the information, the at least one first control signal to cause the lens assembly to provide the cylindrical power component, oriented along the cylindrical axis component, for the viewer. Various other systems and methods are also disclosed.Type: ApplicationFiled: February 27, 2018Publication date: August 29, 2019Inventors: Evan M. Richards, Weihua Gao, Daozhi Wang
-
Publication number: 20180313717Abstract: A contact lens has a central region and an annular region surrounding the central region, the central region having a first optical power and the annular region having a second optical power. In a method of measuring the add power, the wavefront aberration of the contact lens is measured; a polynomial is fitted to the measured wavefront aberration. Terms of the polynomial correspond to types of aberration comprising defocus and astigmatism and residual aberrations. The add power is calculated as a defocus corresponding to the residual aberrations.Type: ApplicationFiled: April 20, 2018Publication date: November 1, 2018Inventors: Daozhi Wang, Laura Horan
-
Publication number: 20180246332Abstract: An optical characterization system tests optical elements of head-mounted displays (HMD) such as lenses. The system emits a test pattern of light through an aperture of a hollow truncated cone. The hollow truncated cone may be rotated to different angles of test positions, for example, to mimic rotation of a human eye of a user wearing an HMD. The emitted light is refracted by a test lens and captured by a detector assembly. Using images captured by the detector assembly, the system determines one or more quality metrics of the test lens. Quality metrics may describe various types of optical aberrations, which may be determined as a function of the test positions (e.g., angle and/or position of the hollow truncated cone relative to the test lens). In addition, the system may generate an optical profile of the test lens using the quality metrics.Type: ApplicationFiled: January 9, 2018Publication date: August 30, 2018Inventors: Daozhi Wang, Ning Yeung Chan, Youngshik Yoon, Shizhe Shen, Torin Ross Herndon
-
Patent number: 8157378Abstract: An ophthalmic apparatus adapted to project a waist of a beam of the light, such that a portion of the confocal region of the waist is projected onto the cornea. The source can be at least partially coherent and/or monochromatic. The source may be a laser or a laser diode. The beam can be a Gaussian beam, or a non-Gaussian beam. The apparatus can comprise a wavefront aberrometer, an axial eye length measuring apparatus or a refractometer.Type: GrantFiled: August 23, 2007Date of Patent: April 17, 2012Assignee: Bausch & Lomb IncorporatedInventors: Ming Lai, Barry T. Eagan, Daozhi Wang
-
Patent number: 7800759Abstract: An interferometric axial eye length measurement apparatus having a light source adapted to produce a beam of partially coherent light, a first mirror and a second mirror disposed in the reference arm, and a processor adapted to control at least the second mirror such that a corneal interference peak and a second interference peak have a non-zero separation. There is at least one variable delay optical element having a delay signal, wherein the delay signal corresponding to a region between the corneal interference peak and second interference peak is substantially linear.Type: GrantFiled: December 11, 2007Date of Patent: September 21, 2010Assignee: Bausch & Lomb IncorporatedInventors: Ming Lai, Daozhi Wang, Barry T. Eagan
-
Publication number: 20090161068Abstract: An ophthalmic measurement apparatus having an instrument axis and comprising (A) a central housing comprising at least two reference surfaces and comprising a beam splitter, the instrument axis extending from the central housing, (B) a camera subsystem having a reference surface, the camera subsystem coupled to one of said reference surfaces such that the reference surface to which the subsystem is coupled and the camera subsystem reference surface together operatively align the camera with the instrument axis, and (C) an aberrometer subsystem having a reference surface, the aberrometer subsystem coupled to one of said reference surfaces such that the reference surface to which the aberrometer subsystem is coupled and the reference surface of the aberrometer subsystem together operatively align the aberrometer subsystem with the instrument axis.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Inventors: Ming Lai, Barry T. Eagan, Daozhi Wang
-
Patent number: D660893Type: GrantFiled: July 2, 2009Date of Patent: May 29, 2012Assignee: Bausch & Lomb IncorporatedInventor: Daozhi Wang