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公开(公告)号：US11686890B2
公开(公告)日：2023-06-27
申请号：US16948732
申请日：2020-09-30
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Gonzalo Wills
CPC classification number: G02B5/1871 , G02B1/115 , G02B5/1857 , G02B27/44 , G02B27/1093 , G02B27/4272 , G02B2005/1804
Abstract: A transmissive optical element may include a substrate. The transmissive optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The transmissive optical element may include a second anti-reflectance structure for the particular wavelength range formed on the first anti-reflectance structure. The transmissive optical element may include a third anti-reflectance structure for the particular wavelength range formed on the second anti-reflectance structure. The transmissive optical element may include at least one layer disposed between the first anti-reflectance structure and the second anti-reflectance structure or between the second anti-reflectance structure and the third anti-reflectance structure.
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公开(公告)号：US11619770B2
公开(公告)日：2023-04-04
申请号：US16594138
申请日：2019-10-07
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Joel Milgram , Karen Denise Hendrix , Michael O'Leary , Hery Djie , Lu Tian , Paul Colbourne
Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
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公开(公告)号：US10802185B2
公开(公告)日：2020-10-13
申请号：US16044081
申请日：2018-07-24
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Gonzalo Wills
Abstract: A transmissive optical element may include a substrate. The transmissive optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The transmissive optical element may include a second anti-reflectance structure for the particular wavelength range formed on the first anti-reflectance structure. The transmissive optical element may include a third anti-reflectance structure for the particular wavelength range formed on the second anti-reflectance structure. The transmissive optical element may include at least one layer disposed between the first anti-reflectance structure and the second anti-reflectance structure or between the second anti-reflectance structure and the third anti-reflectance structure.
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公开(公告)号：US10747044B2
公开(公告)日：2020-08-18
申请号：US15954132
申请日：2018-04-16
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Gonzalo Wills
IPC: G02F1/1335 , G02B5/30 , G02B5/32 , G02F1/153
Abstract: A sub-wavelength grating is placed inside a liquid crystal variable optical retarder to reduce polarization dependence of the optical retardation generated by the variable optical retarder. A small thickness of the sub-wavelength grating, as compared to a conventional waveplate, reduces the driving voltage penalty due to the in-cell placement of the sub-wavelength grating.
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公开(公告)号：US10712475B2
公开(公告)日：2020-07-14
申请号：US15837990
申请日：2017-12-11
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Stephen Bagnald
Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
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Patent Agency Ranking
公开(公告)号：US10436947B2
公开(公告)日：2019-10-08
申请号：US15973109
申请日：2018-05-07
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Joel Milgram , Karen Denise Hendrix , Michael O'Leary , Hery Djie , Lu Tian , Paul Colbourne
Abstract: A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
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27.发明授权公开(公告)号：US10241244B2
公开(公告)日：2019-03-26
申请号：US15224070
申请日：2016-07-29
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Gonzalo Wills , Lu Tian , Michael O'Leary
Abstract: A diffraction grating may include a substrate. The diffraction grating may include an etch stop layer to prevent etching of the substrate. The etch stop layer may be deposited on the substrate. The diffraction grating may include a marker layer to indicate an etch end-point associated with etching of a dielectric layer. The marker layer may be deposited on a portion of the etch stop layer. The diffraction grating may include the dielectric layer to form a grating layer after being etched. The dielectric layer may be deposited on at least the marker layer.
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公开(公告)号：US20190056531A1
公开(公告)日：2019-02-21
申请号：US15837990
申请日：2017-12-11
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Stephen Bagnald
Abstract: An optical element may include a substrate. The optical element may include a first anti-reflectance structure for a particular wavelength range formed on the substrate. The optical element may include at least one layer disposed on a portion of the first anti-reflectance structure. The optical element may include a second anti-reflectance structure for the particular wavelength range formed on the at least one layer. A depth between a first surface of the first anti-reflectance structure and a second surface of the second anti-reflectance structure, a first index of refraction of the first anti-reflectance structure, a second index of refraction of the second anti-reflectance structure, and a third index of refraction of the at least one layer may be selected to form a diffractive optical element associated with a particular phase delay for the particular wavelength.
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公开(公告)号：US09946134B2
公开(公告)日：2018-04-17
申请号：US13962069
申请日：2013-08-08
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Gonzalo Wills
IPC: G02F1/1335 , G02B5/32 , G02B5/30 , G02F1/153
CPC classification number: G02F1/1335 , G02B5/3083 , G02B5/32 , G02F1/133504 , G02F1/1533 , G02F2201/307
Abstract: A sub-wavelength grating is placed inside a liquid crystal variable optical retarder to reduce polarization dependence of the optical retardation generated by the variable optical retarder. A small thickness of the sub-wavelength grating, as compared to a conventional waveplate, reduces the driving voltage penalty due to the in-cell placement of the sub-wavelength grating.
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公开(公告)号：US09606273B2
公开(公告)日：2017-03-28
申请号：US13721307
申请日：2012-12-20
Applicant: Lumentum Operations LLC
Inventor： John Michael Miller , Wenlin Jin
CPC classification number: G02B26/0808 , G02B5/18 , G02B5/1861 , G02B26/0833 , G02B26/0841 , H01S5/06
Abstract: A diffractive MEMS device has an in-plane binary reflective diffraction pattern formed in an outer surface of a tiltable platform. The binary reflective diffraction pattern includes rectangular or trapezoidal ridges and valleys, or grooves, of a same depth. The binary reflective diffractive pattern has a high diffraction efficiency even though the surfaces of the “grooves” or “ridges” are not perpendicular to the incoming optical beam. The diffractive pattern is supported by a pair of torsional hinges and is tiltable by an electrostatic actuator. The electrostatic actuator can include at least one side electrode for linearization of dependence of tilt angle on the voltage applied to the actuator.
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