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公开(公告)号：US20240134197A1
公开(公告)日：2024-04-25
申请号：US18278974
申请日：2022-02-25
Inventor： Weitao Song , Xinan Liang , Yuanjin Zheng , Arseniy Kuznetsov
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/0179 , G02B2027/0127 , G02B2027/0174 , G02B2027/0187
Abstract: An optical system and a method of forming the same. The optical system may include a light source configured to generate a light beam, the light beam being coherent or partially coherent. The optical system may also include a spatial light modulator configured to modulate a phase of the light beam. The optical system may further include an eyepiece for directing the modulated light beam to an eye of a viewer, the eyepiece arranged such that an optical distance between the spatial light modulator and a main plane of the eyepiece is greater than a focal length of the eyepiece. The spatial light modulator may include an active display area having a dimension of less than 2 mm.
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公开(公告)号：US11204452B2
公开(公告)日：2021-12-21
申请号：US16333539
申请日：2017-10-05
Applicant: Agency for Science, Technology and Research
Inventor： Ramon Jose Paniagua Dominguez , Egor Khaidarov , Arseniy Kuznetsov , Hanfang Hao , Yefeng Yu , Xinan Liang
Abstract: There is provided a diffractive optical element including a substrate, and an array of optical nanoantennas arranged on the substrate, the array of optical nanoantennas being spaced apart periodically in a lateral direction for supporting a plurality of diffraction orders at a predetermined wavelength. In particular, each optical nanoantenna in the array of optical nanoantennas is configured to control distribution of electromagnetic energy from an incident light having the predetermined wavelength amongst the plurality of diffraction orders so as to promote scattering of the electromagnetic energy in at least a first direction and suppress scattering of the electromagnetic energy in at least a second direction, the first direction and the second direction corresponding to a first diffraction order and a second diffraction order of the plurality of diffraction orders, respectively. There also provided a corresponding method of forming the diffractive optical element and a flat optical element, such as a flat lens.
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公开(公告)号：US20190257986A1
公开(公告)日：2019-08-22
申请号：US16333539
申请日：2017-10-05
Applicant: Agency for Science, Technology and Research
Inventor： Ramon Jose Paniagua Dominguez , Egor Khaidarov , Arseniy Kuznetsov , Hanfang Hao , Yefeng Yu , Xinan Liang
IPC: G02B5/18
Abstract: There is provided a diffractive optical element including a substrate, and an array of optical nanoantennas arranged on the substrate, the array of optical nanoantennas being spaced apart periodically in a lateral direction for supporting a plurality of diffraction orders at a predetermined wavelength. In particular, each optical nanoantenna in the array of optical nanoantennas is configured to control distribution of electromagnetic energy from an incident light having the predetermined wavelength amongst the plurality of diffraction orders so as to promote scattering of the electromagnetic energy in at least a first direction and suppress scattering of the electromagnetic energy in at least a second direction, the first direction and the second direction corresponding to a first diffraction order and a second diffraction order of the plurality of diffraction orders, respectively. There also provided a corresponding method of forming the diffractive optical element and a flat optical element, such as a flat lens.
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公开(公告)号：US20240231098A9
公开(公告)日：2024-07-11
申请号：US18278974
申请日：2022-02-25
Inventor： Weitao Song , Xinan Liang , Yuanjin Zheng , Arseniy Kuznetsov
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/0179 , G02B2027/0127 , G02B2027/0174 , G02B2027/0187
Abstract: An optical system and a method of forming the same. The optical system may include a light source configured to generate a light beam, the light beam being coherent or partially coherent. The optical system may also include a spatial light modulator configured to modulate a phase of the light beam. The optical system may further include an eyepiece for directing the modulated light beam to an eye of a viewer, the eyepiece arranged such that an optical distance between the spatial light modulator and a main plane of the eyepiece is greater than a focal length of the eyepiece. The spatial light modulator may include an active display area having a dimension of less than 2 mm.
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