公开(公告)号：US20180131853A1

公开(公告)日：2018-05-10

申请号：US15803351

申请日：2017-11-03

Applicant: Magic Leap, Inc.

Inventor： Asaf PELLMAN ,  Erez TADMOR ,  David COHEN ,  Giora YAHAV

IPC: H04N5/238 ,  G01S17/89 ,  G01S17/42 ,  G01S7/486 ,  G06T7/521 ,  H04N5/225 ,  H04N5/232 ,  H04N5/347 ,  H04N5/343 ,  H04N5/235 ,  G02B5/20 ,  G02B27/10 ,  G02B13/14 ,  G02B27/14

CPC classification number: H04N5/238 ,  G01S7/4816 ,  G01S7/4865 ,  G01S17/42 ,  G01S17/89 ,  G02B1/11 ,  G02B5/208 ,  G02B13/14 ,  G02B27/0093 ,  G02B27/1006 ,  G02B27/141 ,  G02B27/30 ,  G06T7/521 ,  H04N5/2254 ,  H04N5/2256 ,  H04N5/23212 ,  H04N5/23245 ,  H04N5/2351 ,  H04N5/343 ,  H04N5/347 ,  H04N5/378 ,  H04N13/254

Abstract: An imaging lens includes one or more lens elements configured to receive and focus light in a first wavelength range reflected off of one or more first objects onto an image plane, and to receive and focus light in a second wavelength range reflected off of one or more second objects onto the image plane. The imaging lens further includes an aperture stop and a filter positioned at the aperture stop. The filter includes a central region and an outer region surrounding the central region. The central region of the filter is characterized by a first transmission band in the first wavelength range and a second transmission band in the second wavelength range. The outer region of the filter is characterized by a third transmission band in the first wavelength range and substantially low transmittance values in the second wavelength range.

公开(公告)号：US20240329737A1

公开(公告)日：2024-10-03

申请号：US18742758

申请日：2024-06-13

Applicant: Magic Leap, Inc.

Inventor： Daniel FARMER ,  David COHEN ,  Bradley Vincent STUART

IPC: G06F3/01 ,  G06T7/77

CPC classification number: G06F3/013 ,  G06T7/77 ,  G06T2207/10152 ,  G06T2207/30201

Abstract: An eye tracking system can include eye-tracking camera(s) configured to obtain images of the eye at different exposure times or different frame rates. For example, longer exposure images of the eye taken at a longer exposure time can show iris or pupil features, and shorter exposure, glint images can show peaks of glints reflected from the eye. The shorter exposure glint images may be taken at a higher frame rate than the longer exposure images for more accurate gaze prediction. The shorter exposure glint images can be analyzed to provide glint locations to subpixel accuracy. The longer exposure images can be analyzed for pupil center and/or center of rotation. The eye tracking system can predict gaze direction, which can be used for foveated rendering by a wearable display system. In some instances, the eye-tracking system may estimate the location of a partially or totally occluded glint.

公开(公告)号：US20230305627A1

公开(公告)日：2023-09-28

申请号：US18302587

申请日：2023-04-18

Applicant: Magic Leap, Inc.

Inventor： Daniel FARMER ,  David COHEN ,  Bradley Vincent STUART

IPC: G06F3/01 ,  G06T7/77

CPC classification number: G06F3/013 ,  G06T7/77 ,  G06T2207/10152 ,  G06T2207/30201

Abstract: An eye tracking system can include an eye-tracking camera configured to obtain images of the eye at different exposure times or different frame rates. For example, longer exposure images of the eye taken at a longer exposure time can show iris or pupil features, and shorter exposure, glint images can show peaks of glints reflected from the cornea. The shorter exposure glint images may be taken at a higher frame rate (than the longer exposure images) for accurate gaze prediction. The shorter exposure glint images can be analyzed to provide glint locations to subpixel accuracy. The longer exposure images can be analyzed for pupil center or center of rotation. The eye tracking system can predict future gaze direction, which can be used for foveated rendering by a wearable display system. In some instances, the eye-tracking system may estimate the location of a partially or totally occluded glint.

公开(公告)号：US20240073401A1

公开(公告)日：2024-02-29

申请号：US18259044

申请日：2021-12-22

Applicant: Magic Leap, Inc.

Inventor： Zhiheng JIA ,  David COHEN ,  Lionel Ernest EDWIN ,  Charles Robert SCHABACKER

IPC: H04N13/344 ,  G02B5/28 ,  G02B25/00 ,  G02B27/00 ,  G02B27/01

CPC classification number: H04N13/344 ,  G02B5/281 ,  G02B25/001 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0178

Abstract: A head mounted display can include a frame, an eyepiece, an image injection device, a sensor array, a reflector, and an off-axis optical element. The frame can be configured to be supported on the head of the user. The eyepiece can be coupled to the frame and configured to be disposed in front of an eye of the user. The eyepiece can include a plurality of layers. The image injection device can be configured to provide image content to the eyepiece for viewing by the user. The sensor array can be integrated in or one the eyepiece. The reflector can be disposed in or on the eyepiece and configured to reflect light received from an object for imaging by the sensor array. The off-axis optical element can be disposed in or one the eyepiece. The off-axis optical element can be configured to receive light reflected from the reflector and direct at least a portion of the light toward the sensor array.