Display Systems With Optical Sensing
    17.
    发明公开

    公开(公告)号:US20230418377A1

    公开(公告)日:2023-12-28

    申请号:US18466723

    申请日:2023-09-13

    Applicant: Apple Inc.

    CPC classification number: G06F3/013 G02B27/0172 G02B2027/0138

    Abstract: A head-mounted device may have catadioptric lenses that each include a partial mirror, a quarter wave plate, and a polarizer. An optical system in the head-mounted device may have an infrared light-emitting device and an infrared light-sensing device. The optical system may illuminate a user's eyes in eye boxes and may gather measurements from the illuminated eye boxes for eye tracking and other functions. The optical system may operate through the catadioptric lenses. To enhance optical system performance, the polarizers may be wire grid polarizers that are formed from conductive lines that exhibit enhanced infrared transmission and/or the quarter wave plates may be formed from cholesteric liquid crystal layers that serve as quarter wave plates at visible wavelengths and that do not serve as quarter wave plates at infrared wavelengths.

    Coatings for electronic devices
    19.
    发明授权

    公开(公告)号:US11098218B2

    公开(公告)日:2021-08-24

    申请号:US16362455

    申请日:2019-03-22

    Applicant: Apple Inc.

    Abstract: Patterned and plasma-treated coatings for surfaces of electronic devices are disclosed. The patterned and plasma-treated coatings may include a linear fluorinated oligomer or linear fluorinated polymer and may be transparent. Regions of a patterned coating may be micro-sized. The pattern defined by the coating may not be visually discernable, but may affect the frictional properties of the coating.

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