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公开(公告)号：US11422409B2
公开(公告)日：2022-08-23
申请号：US16851874
申请日：2020-04-17
发明人： Jacques Gollier , Fenglin Peng , Junren Wang , Lu Lu
IPC分类号： G02F1/13363 , G02B5/30
摘要： An optical waveplate is provided. The optical waveplate includes a first birefringent film including optically anisotropic molecules arranged to form a first twist structure. The optical waveplate also includes a second birefringent film including optically anisotropic molecules arranged to form a second twist structure, the second birefringent film being stacked with the first birefringent film. The optically anisotropic molecules at a first portion of the first birefringent film adjacent an interface between the first birefringent film and the second birefringent film are configured with a first azimuthal angle. The optically anisotropic molecules at a second portion of the second birefringent film adjacent the interface are configured with a second azimuthal angle. The first azimuthal angle is substantially the same as the second azimuthal angle.
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公开(公告)号：US11366260B1
公开(公告)日：2022-06-21
申请号：US16417334
申请日：2019-05-20
摘要： An optical system includes an optical lens, a polarization volume hologram (PVH) layer arranged over the optical lens, and an IR absorbing structure arranged between the optical lens and the PVH layer. The PVH layer being configured to reflect infrared (IR) light. The IR absorbing structure includes a quarter-wave plate (QWP) arranged between the optical lens and the PVH layer and a linear absorptive polarizer arranged between the QWP and the optical lens. The linear absorptive polarizer is configured to absorb IR light.
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公开(公告)号：US11353767B2
公开(公告)日：2022-06-07
申请号：US16271344
申请日：2019-02-08
发明人： Lu Lu , Fenglin Peng , Douglas Lanman
摘要： A varifocal system comprises a stacked first-type liquid crystal (LC) lens structure and a stacked second-type LC lens structure in optical series. The stacked first-type LC lens structure includes a plurality of first-type LC lenses, and a first-type LC lens provides continuously variable optical states in a first step resolution. The stacked second-type LC lens structure includes a plurality of second-type LC lenses and provides a plurality of optical states in a second step resolution. The first step resolution is smaller than the second step resolution, such that when the stacked second-type LC lens structure is switched between two optical states, the first-type LC lenses provide a continuous adjustment of optical power between the two optical states. The stacked first-type LC lens structure and the stacked second-type LC lens structure together provide a continuous adjustment range of optical power for the varifocal system.
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公开(公告)号：US11342764B2
公开(公告)日：2022-05-24
申请号：US16697360
申请日：2019-11-27
发明人： Huimin Tan , Zhengzhan Peng
摘要： A low voltage charging control and protection circuit for an electronic cigarette is provided. The circuit includes an extended charging circuit configured to charge a battery of the electronic cigarette at a first voltage. The circuit also includes a charging integrated circuit configured to charge the battery of the electronic cigarette at a second voltage. The first voltage is lower than the second voltage. The circuit further includes a microcontroller configured to control the extended charging circuit and the charging integrated circuit to alternately charge the battery of the electronic cigarette based on a high or low level of a voltage of the battery.
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公开(公告)号：US11169354B2
公开(公告)日：2021-11-09
申请号：US16354887
申请日：2019-03-15
发明人： Aiqing Chen , Weihua Gao , Daozhi Wang
摘要： 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.
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公开(公告)号：US11022835B2
公开(公告)日：2021-06-01
申请号：US16261552
申请日：2019-01-29
发明人： Afsoon Jamali , Wanli Chi , Douglas Lanman
IPC分类号： G06T19/00 , G02F1/1335 , G06F3/01 , G02B27/01 , G02B27/00
摘要： An optical system is provided. The optical system includes an electronic display, an adaptive lens assembly, and an eye tracking device. The electronic display displays a virtual scene for a user of the optical system; the adaptive lens assembly is optically coupled to the electronic display between the electronic display and eyes of the user; and the eye tracking device provides eye tracking information of the eyes of the user. The adaptive lens assembly includes a plurality of adjustable liquid crystal (LC) lenses arranged in an array, and the adjustable LC lenses are activated individually based on the eye tracking information.
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公开(公告)号：US10935790B2
公开(公告)日：2021-03-02
申请号：US16270355
申请日：2019-02-07
发明人： Lu Lu , Junren Wang , Scott McEldowney
IPC分类号： G02B27/01 , G02F1/1345 , G02F1/13363
摘要： A device and a head-mounted display (HMD) are provided. The device comprises a first flexible electrode and a second flexible electrode configured to provide a driving voltage to the device; a birefringent material layer coupled to the first flexible electrode and the second flexible electrode, and structurally patterned to provide at least one predetermined optical function of the device; and a first photo-alignment (PAM) layer and a second PAM layer sandwiching the birefringent material layer. A structured pattern of the birefringent material layer is based on a manipulation of optic axis of birefringent material molecules in the birefringent material layer.
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公开(公告)号：US10852619B1
公开(公告)日：2020-12-01
申请号：US16265435
申请日：2019-02-01
发明人： Oleg Yaroshchuk , Junren Wang , Lu Lu
摘要： A multifocal system and a method thereof are provided. The multifocal system comprises a first adaptive lens assembly including a plurality of lenses arranged in optical series. The plurality of lenses includes at least one active liquid crystal (LC) lens having a plurality of optical states, such that the plurality of lenses provides a plurality of combinations of optical power, and the plurality of combinations of optical power provides a range of adjustment of optical power for the multifocal system. The multifocal system may include a second adaptive lens assembly configured to provide a plurality of combinations of optical power that is opposite to but having a same absolute value as the plurality of combinations of optical power provided by the first adaptive lens assembly.
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公开(公告)号：US12001017B1
公开(公告)日：2024-06-04
申请号：US17672654
申请日：2022-02-15
发明人： Yun-Han Lee , Yu Shi , Lu Lu , Scott Charles McEldowney
CPC分类号： G02B27/0093 , G02B27/0172 , G06F3/013 , G02B2027/0138 , G02B2027/014
摘要： An illumination system includes a light source configured to emit an infrared light. The illumination system also includes a substrate and a plurality of light deflecting elements coupled with the substrate and configured to deflect the infrared light to illuminate an object.
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80.发明授权公开(公告)号：US11889717B2
公开(公告)日：2024-01-30
申请号：US17559212
申请日：2021-12-22
发明人： Zhimin Shi , Yuge Huang , Fenglin Peng , Anurag Tyagi
IPC分类号： H10K50/852 , G09G3/00 , G09G3/32 , H10K50/822 , H10K59/12
CPC分类号： H10K50/852 , G09G3/002 , G09G3/32 , H10K50/822 , G09G2320/0295 , H10K59/12
摘要： Various embodiments set forth light emission display elements, and display devices that include such display elements. In some embodiments, a display element includes an electroluminescent light source and a pair of reflective elements that form a resonant cavity for a particular range of wavelengths and/or a particular polarization of light. One or both of the reflective elements can include meta-reflectors, such as anisotropic meta-reflectors or chiral meta-reflectors. An optional waveplate can be placed between the reflective elements to adjust the polarization state of light emitted by the display element.
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