Invention Grant
- Patent Title: Near-eye display having lenslet array with reduced off-axis optical aberrations
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Application No.: US15832012Application Date: 2017-12-05
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Publication No.: US10678049B2Publication Date: 2020-06-09
- Inventor: John D. Perreault , Patrick Llull
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE LLC
- Current Assignee: GOOGLE LLC
- Current Assignee Address: US CA Mountain View
- Main IPC: G03H1/00
- IPC: G03H1/00 ; G02B27/01 ; G02B27/00 ; G02B27/09

Abstract:
A near-eye display system includes a display panel to display a lightfield image comprising an array of elemental images and a lenslet array facing the display panel, the lenslet array comprising lenslets with spatially-varying prescriptions, such as different diameters, different focal lengths, and different asphere terms. The lenslet array further may be formed with a planar or non-planar substrate. The system further may include a distortion map comprising a set of transform matrices, each transform matrix configured to pre-distort a corresponding elemental image of a lightfield image so as to compensate for distortion expected to be introduced by a corresponding lenslet of the lenslet array, as well as a rendering component configured to modify the array of elemental images of a rendered lightfield using the distortion map to generate a modified lightfield image, and provide the modified lightfield image for display at the display panel for viewing via the lenslet array.
Public/Granted literature
- US20190129166A1 NEAR-EYE DISPLAY HAVING LENSLET ARRAY WITH REDUCED OFF-AXIS OPTICAL ABERRATIONS Public/Granted day:2019-05-02
Information query