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公开(公告)号：US11914187B2
公开(公告)日：2024-02-27
申请号：US17420675
申请日：2020-07-05
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Ronen Chriki , Daniel Michaels
CPC classification number: G02B6/10 , G02B27/0172 , G02B2027/0178
Abstract: An optical system for displaying an image includes a waveguide (10) having two major surfaces (12, 14) that support propagation of image illumination by internal reflection. A coupling-out configuration (16, 18) couples out image illumination towards the eye of the user. An image projector (20) is coupled so as to introduce image illumination into the waveguide so as to propagate by internal reflection. The waveguide also contains a symmetrical beam multiplier region, distinct from the coupling-out region, having one or more beam splitters (24) internal to the waveguide and parallel to its major surfaces. The symmetrical beam multiplier may be used to fill in a conjugate image after a compact coupling-in configuration, and/or may be used to fill the waveguide with the image as an intermediate stage (36) between two optical aperture expansion configurations (32, 34).
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22.发明授权公开(公告)号：US11914161B2
公开(公告)日：2024-02-27
申请号：US17622832
申请日：2020-06-25
Applicant: Lumus Ltd.
Inventor： Eitan Ronen
CPC classification number: G02B27/0179 , G02B6/42 , G02B6/4204 , G02B6/4298 , G06F3/013 , G02B2027/0187
Abstract: A light-transmitting substrate has parallel surfaces deployed with a first of the parallel surfaces in facing relation to an eye. An optical element is associated with the first surface and applies optical power to incident light of a first type so as to collimate the incident light, and applies substantially no optical power to incident light of a second type. An optical coupling configuration is associated with the substrate and is configured for coupling-in a proportion of collimated light of the first type incident on the first surface so as to propagate within the substrate, and for coupling-out a proportion of light of the second type propagating within the substrate. Optics associated with the substrate convert collimated light of the first type into converging beams of light, which are sensed by an optical sensor. A processor derives current gaze direction of the eye by processing signals from the optical sensor.
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公开(公告)号：US11815709B2
公开(公告)日：2023-11-14
申请号：US17779663
申请日：2021-03-17
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Edgar Friedmann
CPC classification number: G02B6/0031 , G02B27/0172
Abstract: An optical device has a light-transmitting substrate, an optical coupling-out configuration, and an optical arrangement. The light-transmitting substrate has at least two major surfaces and guides light by internal reflection between the major surfaces. The optical coupling-out configuration couples the light, guided by internal reflection, out of the light-transmitting substrate toward an eye of a viewer. The optical arrangement is associated with at least one of the two major surfaces, and has a first optical element and a second optical element. The optical elements are optically coupled to each other to define an interface region associated with at least a portion of the coupling-out configuration. The interface region deflects light rays that emanate from an external scene that are incident to the optical arrangement at a given range of incident angles.
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24.发明授权公开(公告)号：US11526003B2
公开(公告)日：2022-12-13
申请号：US16980527
申请日：2019-05-23
Applicant: Lumus Ltd.
Inventor： Eitan Ronen
Abstract: An optical system includes a light-guide optical element (LOE) (100) having a pair of parallel major external surfaces (102, 104) and a set of mutually-parallel reflector surfaces (106a, 106b, 106c) obliquely angled within the LOE. At least one of the reflector surfaces has high reflectivity for angles of incidence above 60 degrees to the normal and partial reflectivity for angles of incidence less than 35 degrees to the normal.
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