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公开(公告)号：US10698235B2
公开(公告)日：2020-06-30
申请号：US15435167
申请日：2017-02-16
摘要： An ophthalmic device including liquid crystal alignment features is disclosed herein. An example device may include first and second optical elements. The first optical element may include first liquid crystal alignment features formed on a first surface. The second optical element may include a first optical diffraction grating formed on a second surface, and second liquid crystal alignment features formed on the second surface. The first surface of the first optical element may face the second surface of the second optical element, and a first liquid crystal material may be disposed between the first and second surfaces of the first and second optical elements.
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公开(公告)号：US20200018999A1
公开(公告)日：2020-01-16
申请号：US16505563
申请日：2019-07-08
发明人： Dmytro Reznikov , Shungneng Lee , Joshua Haddock
IPC分类号： G02F1/137 , G02F1/1347 , G02C7/08 , G02F1/29
摘要： An apparatus comprising a liquid crystal material and a controller are described herein. The liquid crystal material is disposed between a first electrode and a second electrode opposite the first electrode. Molecules of the liquid crystal material assume a first orientation during a first state of the liquid crystal material and a second orientation during a second state of the liquid crystal material. The first orientation is different from the second orientation. The controller is coupled to the first electrode and the second electrode to perform operations. The operations include applying a first periodic waveform to the first electrode and a second periodic waveform to the second electrode to generate a drive waveform applied across the liquid crystal material. The operations further include changing a duty cycle of the drive waveform over a first time period to transition the liquid crystal material between the first state and the second state.
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公开(公告)号：US11022818B2
公开(公告)日：2021-06-01
申请号：US16155040
申请日：2018-10-09
IPC分类号： G02C7/04 , G02C7/10 , G02F1/1343 , G02F1/133 , G02F1/1347 , G02C7/08 , G02F1/1335 , G02F1/29
摘要： Ophthalmic devices including dynamic visual field modulation are disclosed herein. An example ophthalmic device may include a first liquid crystal cell including a first dichroic dye, a second liquid crystal cell including a second dichroic dye, wherein the first and second liquid crystal cells are in optical series so that incident light on the ophthalmic device passes through both the first and second liquid crystal cells, a photodetector positioned within the ophthalmic device to detect the incident light and coupled to output a data signal indicative of a property of the incident light, and control electronics coupled to receive the data signal from the photodetector in response to the incident light, and further coupled to independently and dynamically control the first and second liquid crystal cells based at least in part on the data signal.
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公开(公告)号：US11194178B2
公开(公告)日：2021-12-07
申请号：US16879206
申请日：2020-05-20
摘要： An ophthalmic device including liquid crystal alignment features is disclosed herein. An example device may include first and second optical elements. The first optical element may include first liquid crystal alignment features formed on a first surface. The second optical element may include a first optical diffraction grating formed on a second surface, and second liquid crystal alignment features formed on the second surface. The first surface of the first optical element may face the second surface of the second optical element, and a first liquid crystal material may be disposed between the first and second surfaces of the first and second optical elements.
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公开(公告)号：US20200285076A1
公开(公告)日：2020-09-10
申请号：US16879206
申请日：2020-05-20
摘要： An ophthalmic device including liquid crystal alignment features is disclosed herein. An example device may include first and second optical elements. The first optical element may include first liquid crystal alignment features formed on a first surface. The second optical element may include a first optical diffraction grating formed on a second surface, and second liquid crystal alignment features formed on the second surface. The first surface of the first optical element may face the second surface of the second optical element, and a first liquid crystal material may be disposed between the first and second surfaces of the first and second optical elements.
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公开(公告)号：US11126055B2
公开(公告)日：2021-09-21
申请号：US16505563
申请日：2019-07-08
发明人： Dmytro Reznikov , Shungneng Lee , Joshua Haddock
摘要： An apparatus comprising a liquid crystal material and a controller are described herein. The liquid crystal material is disposed between a first electrode and a second electrode opposite the first electrode. Molecules of the liquid crystal material assume a first orientation during a first state of the liquid crystal material and a second orientation during a second state of the liquid crystal material. The first orientation is different from the second orientation. The controller is coupled to the first electrode and the second electrode to perform operations. The operations include applying a first periodic waveform to the first electrode and a second periodic waveform to the second electrode to generate a drive waveform applied across the liquid crystal material. The operations further include changing a duty cycle of the drive waveform over a first time period to transition the liquid crystal material between the first state and the second state.
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公开(公告)号：US20190107736A1
公开(公告)日：2019-04-11
申请号：US16155040
申请日：2018-10-09
IPC分类号： G02C7/04 , G02C7/10 , G02F1/1343
摘要： Ophthalmic devices including dynamic visual field modulation are disclosed herein. An example ophthalmic device may include a first liquid crystal cell including a first dichroic dye, a second liquid crystal cell including a second dichroic dye, wherein the first and second liquid crystal cells are in optical series so that incident light on the ophthalmic device passes through both the first and second liquid crystal cells, a photodetector positioned within the ophthalmic device to detect the incident light and coupled to output a data signal indicative of a property of the incident light, and control electronics coupled to receive the data signal from the photodetector in response to the incident light, and further coupled to independently and dynamically control the first and second liquid crystal cells based at least in part on the data signal.
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公开(公告)号：US20180231801A1
公开(公告)日：2018-08-16
申请号：US15435167
申请日：2017-02-16
摘要： An ophthalmic device including liquid crystal alignment features is disclosed herein. An example device may include first and second optical elements. The first optical element may include first liquid crystal alignment features formed on a first surface. The second optical element may include a first optical diffraction grating formed on a second surface, and second liquid crystal alignment features formed on the second surface. The first surface of the first optical element may face the second surface of the second optical element, and a first liquid crystal material may be disposed between the first and second surfaces of the first and second optical elements.
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