Direct camera-to-display system
    1.
    发明授权

    公开(公告)号:US11616941B2

    公开(公告)日:2023-03-28

    申请号:US15890853

    申请日:2018-02-07

    摘要: In one embodiment, an electronic display assembly includes a sensor array located on one side of a circuit board and an electronic display array located on an opposite side of the circuit board from the sensor array. The sensor array includes a plurality of sensor pixel units. Each sensor pixel unit includes a plurality of sensor pixels. The electronic display array includes a plurality of display pixel units. Each display pixel unit includes a plurality of display pixels. Each particular one of the plurality of sensor pixel units is mapped to a corresponding one of the plurality of display pixel units such that display pixels of each particular one of the plurality of display pixel units display light corresponding to light captured by sensor pixels of its mapped sensor pixel unit.

    OPTICAL METHOD AND SYSTEM FOR LIGHT FIELD DISPLAYS HAVING LIGHT-STEERING LAYERS AND PERIODIC OPTICAL LAYER

    公开(公告)号:US20220197052A1

    公开(公告)日:2022-06-23

    申请号:US17601679

    申请日:2020-04-08

    摘要: A light-emitting layer of an apparatus includes an addressable array of light-emitting elements including a first light-emitting element and a periodic optical layer overlaying the light-emitting layer. The periodic optical layer includes at least a first periodic optical feature having a first optical power and a second periodic optical feature having a different optical power. A first controllable light-steering layer is disposed between the light-emitting layer and the periodic optical layer. The first controllable light-steering layer is switchable between directing light from the first light-emitting element through the first periodic optical feature and directing light from the first light-emitting element through the second periodic optical feature.

    Photophoretic display device
    4.
    发明授权

    公开(公告)号:US10989931B2

    公开(公告)日:2021-04-27

    申请号:US16262306

    申请日:2019-01-30

    发明人: Chungchih Chou

    摘要: A photophoretic display device includes at least one trap light source configured to generate a trap beam, at least one illumination light source configured to generate an illumination beam, a void, and a first reflective surface. The trap beam enters the void and traps a first one or more scattering particles, the trap beam is incident on the first reflective surface at a first incidence angle and is reflected as a first reflected trap beam, the first reflected trap beam traps a second one or more scattering particles, and the illumination beam illuminates the first one or more scattering particles and the second one or more scattering particles that are trapped to generate a volumetric image.

    LIGHT FIELD IMAGE ENGINE METHOD AND APPARATUS FOR GENERATING PROJECTED 3D LIGHT FIELDS

    公开(公告)号:US20200371378A1

    公开(公告)日:2020-11-26

    申请号:US16638719

    申请日:2018-08-21

    摘要: Systems and methods are described for providing a three-dimensional display. In an example, a display device includes a light engine, a spatial light modulator, one or more directable minors, and a projection lens. Light from the light engine is modulated by the spatial light modulator, reflected by the directable mirror(s) toward the projection lens, and projected by the projection lens (e.g. onto a screen). The directable mirror(s) may include a rotatable mirror or a digital micromirror device. The spatial light modulator may be a digital micromirror device. The spatial light modulator and the directable mirror(s) are synchronized so as to generate different modulated light patterns for different positions of the directable mirror(s). The projection of different modulated light patterns in different directions may generate different views that are visible from different user perspectives.

    Angular subpixel rendering multiview display using shifted multibeam diffraction gratings

    公开(公告)号:US10802443B2

    公开(公告)日:2020-10-13

    申请号:US15911129

    申请日:2018-03-04

    申请人: LEIA INC.

    发明人: David A. Fattal

    摘要: Multiview displays include a backlight and a screen used to form a plurality of multiview pixels. Each multiview pixel includes a plurality of sets of light valves. The backlight includes a light source optically coupled to a plate light guide configured with a plurality of multibeam diffraction gratings. Each multibeam diffraction grating corresponds to a set of light valves and is spatially offset with respect to a center of the set of light valves toward a center of the multiview pixel. The plurality of multibeam diffraction gratings is also configured to diffractively couple out light beams from the plate light guide with different diffraction angles and angular offsets such that at least a portion of the coupled-out light beams interleave and propagate in different view directions of the multiview display.

    APPARATUS AND METHOD FOR DISPLAYING A THREE-DIMENSIONAL IMAGE

    公开(公告)号:US20220236586A1

    公开(公告)日:2022-07-28

    申请号:US17723506

    申请日:2022-04-19

    IPC分类号: G02B30/50

    摘要: An apparatus for displaying a three-dimensional image includes abase; a driving mechanism disposed on the base; a support element movably mounted to the base and controllably driven by the driving mechanism; and a light source set disposed on the support element and configured to controllably form a predetermined pattern of light emission; wherein the driving mechanism is configured to move the support element in a predetermined pattern of movement, a plural-ity of light emission patterns formed by the light source set during the movement of the support element collectively constituting a three-di-mensional image perceptible by a human eye. A method for displaying a three-dimensional image is also disclosed.

    Method of Determining Surgical Margins Using Fluorescence Biopsy Specimen Imager

    公开(公告)号:US20210181110A1

    公开(公告)日:2021-06-17

    申请号:US17177583

    申请日:2021-02-17

    申请人: LI-COR, Inc.

    发明人: Han-Wei Wang

    摘要: Methods for determining surgical margins using an imaging device are described that use multiple cameras to image a biological sample on a turntable bathed in white light or fluorescing due to a systemically administered dye. Fluorescence farther away from an excitation light source can be compensated upon determining a 3-D position of portions of the sample. The turntable is turned and tilted in order to take enough images to prepare an animation of the sample. In a graphical user interface, the animation can be stopped, zoomed, and tilted per a user's gesture, touch, tablet-tilting, or other commands. The image manipulation can be with touch gestures entered using a sterilizable or disposable touch pen.

    Optical system
    10.
    发明授权

    公开(公告)号:US10989920B2

    公开(公告)日:2021-04-27

    申请号:US15773753

    申请日:2016-10-04

    摘要: The invention relates to an optical system for generating a two- or three-dimensional image, the system comprising: a projection apparatus for optically transmitting image information to at least one user; an eye detection apparatus; and an imaging apparatus for imaging the image information of the projection device, so that the user can perceive said image information. The imaging apparatus comprises at least one optical hologram set, at least one of which sets is designed to be angle-amplifying. Using the projection apparatus, at least one virtual optical point is generated, or a plurality of optical points are generated such that they form at least one optical wave front, each virtual optical point being generated by the superposition of at least two coherent light waves in the region of the at least one angle-amplifying optical hologram set, and the at least one optical hologram set is used to image the at least one virtual point or the at least one optical wavefront onto the eyes of the at least one user. The respective movements of the eyes of the at least one user can be detected by the eye detection apparatus and the latter cooperates with the projection apparatus in such a way that the amount of image information is adapted according to the respective alignment of the eye and/or position of the eye in different perception regions of each eye.