PUPIL-AWARE EYE TRACKING FOR EYE SAFETY
    2.
    发明公开

    公开(公告)号:US20240261147A1

    公开(公告)日:2024-08-08

    申请号:US18107344

    申请日:2023-02-08

    IPC分类号: A61F9/008

    摘要: Eye safety and eye tracking accuracy is enhanced through pupil-aware eye tracking, where a fringe pattern projection or illumination onto the eye is locally dimmed in an area corresponding to the pupil. Fringe projection local dimming is accomplished by modifying (locally dimming) the fringe pattern at the projector. Illumination local dimming is accomplished at the light source (e.g., a laser source) before the light is provided by a micro-electromechanical system (MEMS) to the eye. An amount of light provided to non-pupil areas such as sclera may be increased to enhance a signal-to-noise ratio (SNR), which may lead to more accurate eye tracking.

    LASER SYSTEM DELIVERING ULTRA-SHORT PULSES ALONG MULTIPLE BEAM DELIVERY PATHS

    公开(公告)号:US20240036337A1

    公开(公告)日:2024-02-01

    申请号:US18377969

    申请日:2023-10-09

    摘要: A laser system includes a laser source generating a laser beam having ultra-short pulses; a laser delivery assembly optically receiving the laser beam and comprising: a beam splitter configured to split the laser beam between a first beam delivery path and a second beam delivery path; and at least one focusing lens optically coupled to the beam splitter and configured to focus the laser beam from each of the first beam delivery path and the second beam delivery path to a focal point on a predefined plane; wherein the first beam delivery path intersects the predefined plane at a first angle, the second beam delivery path intersects the predefined plane at a second angle, and a first pulse from the first beam delivery path and a second pulse from the second beam delivery path are coincident at the focal point.

    METHOD FOR CENTERING A CONTACT GLASS AND REFRACTIVE SURGICAL LASER SYSTEM

    公开(公告)号:US20230372149A1

    公开(公告)日:2023-11-23

    申请号:US18248540

    申请日:2021-10-12

    IPC分类号: A61F9/00 A61F9/008

    CPC分类号: A61F9/0061 A61F9/00804

    摘要: A method for centring a contact glass relative to a patient's eye includes a) providing a fixation light through a contact glass to align the patient's eye glass fixing on the fixation light; b) detecting an image of a light pattern that is imaged on the eye's surface; c) presenting the image over the eye with the contact glass with overlaying of virtual markings, wherein a first marking identifies the central axis of the contact glass and a second marking identifies a reference marking, which is derived from the image of the light pattern as lying on the central axis of the contact glass; d) laterally positioning the contact glass such that a distance between the markings is minimized; and e) establishing the position of the eye at which the second marking is located when the markings adopt the minimized distance and registering the position of the vertex.

    SCLERAL CONTACT LENS
    5.
    发明公开

    公开(公告)号:US20230204976A1

    公开(公告)日:2023-06-29

    申请号:US17913078

    申请日:2021-07-21

    IPC分类号: A61F9/013 A61B3/107

    摘要: In general, one aspect disclosed features a scleral contact lens for an eye of a patient, the scleral contact lens comprising: an anterior surface; and a posterior surface, the posterior surface comprising: a central optic zone defined by a base curve according to an apical radius of the cornea of the eye; a peripheral corneal zone peripheral to the central optic zone, a clearance control zone peripheral to the optic zone, and a scleral landing zone peripheral to the clearance control zone, the scleral landing zone having a single surface shape.