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公开(公告)号：US11054672B2
公开(公告)日：2021-07-06
申请号：US16206398
申请日：2018-11-30
发明人： John Freudenthal , Baoliang Wang
摘要： An apparatus includes a photoelastic modulator (PEM) optical element including a first driving axis and a second driving axis arranged at a selected angle with respect to each other and perpendicular to an optical axis, wherein the first driving axis and the second driving axis extend respective predetermined non-equal lengths that correspond to respective predetermined non-equal natural first and second PEM frequencies f1 and f2. Methods of manufacture and operation are also disclosed.
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公开(公告)号：US10761399B2
公开(公告)日：2020-09-01
申请号：US16045864
申请日：2018-07-26
摘要： A laser exposure system includes an electrically-controlled diffraction grating which can be controlled to be in a first state where the incident light beam is undiffracted and a second state where the incident light beam is diffracted into a plurality of light beams including a zero-order light beam and first and second diffracted light beams. An aperture structure which passes the first and second diffracted light beams while blocking the zero-order light beam. A polarization rotator rotates a polarization state of the second diffracted light, and a polarization beam combiner combines the first diffracted light beam and the polarization-rotated second diffracted light beam onto a common path forming a combined light beam. An optical element focuses the combined light beam onto an imaging medium. A controller controls the state of the electrically-controlled diffraction grating in accordance with pixel data to form a printed image.
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公开(公告)号：US10317773B2
公开(公告)日：2019-06-11
申请号：US15745075
申请日：2017-09-20
发明人： Zhidong Wang
摘要： A display assembly includes a convex lens, a light-absorbing layer, and a refractive index-adjustable layer disposed therebetween. The refractive index-adjustable layer has a refractive index adjustable between less than, and no less than, a critical value, configured such that a light incident into the convex lens has a total reflection if the refractive index of the refractive index-adjustable layer is less than the critical value, and transmits through the refractive index-adjustable layer and reaches the light-absorbing layer for absorption if the refractive index of the refractive index-adjustable layer is no less than the critical value. The critical value can be a refractive index of the convex lens if it is in direct contact with the refractive index-adjustable layer, or can be a refractive index of a transparent film layer disposed between the convex lens and the refractive index-adjustable layer and in direct contact with the refractive index-adjustable layer.
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公开(公告)号：US10185199B2
公开(公告)日：2019-01-22
申请号：US15416965
申请日：2017-01-26
发明人： Neil Robin Branda , Glen Ramsay Bremner , Jeremy Graham Finden , Corbin Abe Giesbrecht , Duhane Lam , Matt Andrew Pilapil , Matthew Paul Smit
摘要： A control system for a variable transmittance optical filter assembly includes a controller in communicatively coupled to a pair of load terminals, and a memory communicatively coupled to the controller and having encoded thereon statements and instructions executable by the controller to transition the optical filter assembly between operating states when coupled to the pair of load terminals. The controller is operable to perform any one or more of: allowing the optical filter assembly to transition to a dark state by shorting the load terminals together, maintaining the optical filter assembly in a hold mode by applying a pulse width modulated voltage signal across the load terminals, and transitioning the optical filter assembly between operative states by applying a voltage signal having voltage pulses of opposite polarities to the load terminals.
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公开(公告)号：US09995460B2
公开(公告)日：2018-06-12
申请号：US15312338
申请日：2015-05-18
发明人： Marcus Antonius Verschuuren , Manuela Lunz , Ke Guo , Gabriel Sebastian Lozano Barbero , Remco Van Brakel
CPC分类号： F21V9/30 , F21K9/64 , G02B5/008 , G02F1/017 , G02F1/01708 , G02F2001/01791 , H01L33/502
摘要： There is provided an illumination device comprising: a wavelength converting layer comprising a photon emitting donor configured to absorb energy to reach an excited state, and a photon emitting acceptor; an energy source configured to provide energy to the donor such that the donor reach the excited state; wherein the donor and the acceptor are selected and arranged at a distance from each other such that non-radiative transfer of excitation energy from the donor to the acceptor occur, and wherein the acceptor is configured to emit a photon at a second wavelength after the transfer of energy; the illumination device further comprising a periodic plasmonic antenna array, arranged on the substrate and embedded within the wavelength converting layer, and comprising a plurality of individual antenna elements arranged in an antenna array plane, the plasmonic antenna array being configured to support a first lattice resonance at the second wavelength, arising from coupling of localized surface plasmon resonances in the individual antenna elements to photonic modes supported by the system comprising the plasmonic antenna array and the wavelength converting layer, wherein the plasmonic antenna array is configured to comprise plasmon resonance modes such that light emitted from the plasmonic antenna array has an anisotropic angle distribution.
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公开(公告)号：US09975408B2
公开(公告)日：2018-05-22
申请号：US15595647
申请日：2017-05-15
发明人： Yu-An Lo
摘要： The present disclosure describes various vehicle window assemblies including a photochromic window and a mounting assembly surrounding at least part of the window. The mounting assembly may be sized and configured for mounting to the cabin of a vehicle. The photochromic window may include a region configured to at least partially inhibit transmission of light in a visible, IR or UV frequency range upon exposure to a level of light.
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公开(公告)号：US09778455B2
公开(公告)日：2017-10-03
申请号：US14665872
申请日：2015-03-23
发明人： Seung-Jin Baek , Sang-II Kim , Yeuntae Kim , Hyeon Gu Cho
CPC分类号： G02B26/005 , G02B5/003 , G02B26/023 , G09G3/348
摘要： A transflective display apparatus includes a first electrode and a second electrode, which face each other and are separated from one another by a pixel electrode. In addition, a preparation voltage is applied to the first electrode or the second electrode before applying a driving voltage to the pixel electrode.
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公开(公告)号：US09726890B2
公开(公告)日：2017-08-08
申请号：US14797663
申请日：2015-07-13
申请人： Sony Corporation
IPC分类号： G02F1/03 , G02F1/07 , G02B26/00 , G02B27/01 , F21V8/00 , G02B27/14 , G02B5/09 , G02B5/18 , G02B27/10 , G02B27/42 , G03H1/02
CPC分类号： G02B27/0172 , G02B5/09 , G02B5/1842 , G02B6/0015 , G02B6/0031 , G02B6/0035 , G02B6/0055 , G02B27/1086 , G02B27/14 , G02B27/4216 , G02B2027/011 , G02B2027/0174 , G03H1/0248
摘要： An image display device includes an image generating device, a light guide unit, and a light beam expanding device. The light guide unit includes a light guide plate, a first deflector, and a second deflector. The light beam expanding device expands a light beam incident from the image generating device along the Z direction and outputs the light beam to the light guide unit when the incident direction of light incident on the light guide plate is defined as the X direction and the propagation direction of light in the light guide plate is defined as the Y direction. The light beam expanding device is composed of a first reflective mirror on which light from the image generating device is incident and a second reflective mirror on which light from the first reflective mirror is incident and that outputs light to the light guide unit.
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公开(公告)号：US09713948B2
公开(公告)日：2017-07-25
申请号：US14454424
申请日：2014-08-07
申请人： Fitz Woodrow
发明人： Fitz Woodrow
CPC分类号： B60J1/06 , B60J3/04 , G02F1/0126 , G02F1/153 , G02F2202/14
摘要： Provided is a vehicle having a support structure attached to the front of the vehicle in which is mounted a windshield. The windshield comprises a hinge and a top mount allowing the windshield to fold up for improved upper body safety and improved air circulation. The windshield comprises an upper windshield portion, a bottom windshield portion connected to the upper windshield portion, and a rotatable device attaching the upper portion to the bottom portion where the upper windshield portion is an upper fixed windshield portion and the bottom windshield portion is a bottom movable windshield portion. The upper windshield portion is a fixed portion and is comprised of clips or clamps configured to latch the bottom windshield portion in a folded position over the upper fixed windshield portion.
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公开(公告)号：US09707829B2
公开(公告)日：2017-07-18
申请号：US14967390
申请日：2015-12-14
发明人： Yu-An Lo
摘要： The present disclosure describes various vehicle window assemblies including a photochromic window and a mounting assembly surrounding at least part of the window. The mounting assembly may be sized and configured for mounting to the cabin of a vehicle. The photochromic window may include a region configured to at least partially inhibit transmission of light in a visible, IR or UV frequency range upon exposure to a level of light.
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