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公开(公告)号：US20230404385A1
公开(公告)日：2023-12-21
申请号：US18265095
申请日：2021-12-02
申请人： HEADS STOCKHOLM AB
发明人： Hans-Peter Kurz
CPC分类号： A61B3/024 , A61B3/113 , A61B3/0041 , A61B3/112
摘要： The present disclosure relates to a device for visual field testing 11, which maps eye function of a test subject, the device comprising a display unit 17 displaying stimuli 23 to the test subject, and an eye tracking unit 19 detecting eye motions in response to the displayed stimuli. The display unit 17 displays at least a first 23 and a second 25 peripheral stimulus at different sectors in relation to a point of fixation 27 at the same time and the eye tracking unit determines which of the first and second stimulus is first gazed upon by the test subject. This allows different parts of the retina to compete with regards to retinal sensitivity and allows for a precise and efficient visual field testing.
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公开(公告)号：US20240335111A1
公开(公告)日：2024-10-10
申请号：US18294632
申请日：2022-07-25
申请人： HEADS STOCKHOLM AB
CPC分类号： A61B3/12 , A61B3/0008 , A61B3/0025 , A61B3/0033 , A61B3/0041 , A61B3/0091 , A61B3/113
摘要： The present disclosure relates to a method and a corresponding device (1) for providing an eye metric. The device comprises a display unit (3), producing a visual stimulus (7) to an eye, a feedback unit (9) measuring a response to the stimulus, and an analysing unit (11), outputting a metric result. The device is configured to produce a recurring bleaching impulse together with the stimulus wherein the bleaching impulse is repeated with a frequency greater than 0.3 Hz. This serves to keep the cones of the eye's retina in a saturated state, and the produced metric may be useful in apparatuses for eye evaluation.
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公开(公告)号：US20230255472A1
公开(公告)日：2023-08-17
申请号：US18016022
申请日：2021-07-12
申请人： HEADS STOCKHOLM AB
发明人： Hans-Peter Kurz
CPC分类号： A61B3/024 , A61B3/0091 , A61B3/113
摘要： The present disclosure relates to a device for providing an eye metric, comprising a display unit (7), producing a visual stimulus (13) to an eye. An eye-tracking unit (9), measures the eye's movements in response to the stimulus, and an analyzing unit, outputting a metric result. The display unit (7) produces a moving stimulus with at least one varying stimulus parameter such as a symbol size, and the eye-tracking unit (9) detects when the eye loses visual contact with the stimulus. The analyzing unit provides a metric result based on the value of the stimulus parameter at the time when loss of visual contact was detected.
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公开(公告)号：US11624907B2
公开(公告)日：2023-04-11
申请号：US16349682
申请日：2017-11-03
申请人： HEADS STOCKHOLM AB
发明人： Hans-Peter Kurz
摘要： The present disclosure relates to a method and a device for acquisition of a metric of an eye (1) located in an acquisition space (29). The device comprises at least one light source (11) configured to emit light towards the acquisition space, a camera (15) configured to receive light from the acquisition space to (29) generate image data, and an analyzing unit (14) configured to extract at least one metric from the image data. The camera (15) is configured to receive light from the acquisition space via at least two light paths (17, 19) which are differently angled with respect to the optical axis of the camera, the light of at least one path being received via a first mirror (21). The camera receives light from an overlapping portion of the acquisition space via the first and second paths, as to allow the camera to receive at least two representations of a single eye. This metric may be used for e.g. eye tracking or autorefraction/accomodation.
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