公开(公告)号：US20220137420A1

公开(公告)日：2022-05-05

申请号：US17579051

申请日：2022-01-19

Applicant: GOOGLE LLC

Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas R. Dykaar ,  Martin Joseph Kiik ,  Syed Moez Haque

IPC: G02B27/01 ,  H01S5/02224 ,  H01S5/40 ,  G02B27/42 ,  H01S5/0237 ,  H01S5/02253 ,  H01S5/02255 ,  H01S5/02257

Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

公开(公告)号：US11315483B2

公开(公告)日：2022-04-26

申请号：US16850550

申请日：2020-04-16

Applicant: GOOGLE LLC

Inventor： Martin Joseph Kiik

IPC: G09G3/32 ,  H04N5/33 ,  G06F3/01

Abstract: Systems, devices, and methods for tracking eye movement and gaze direction using infrared light are described. The method includes projecting infrared light from at least one pixel in the display screen to the eye of the user, detecting a plurality of reflections of the infrared light from the eye, determining the relative intensity of each of the plurality of the reflections, identifying, from the plurality of reflections, a region of the eye that corresponds to a relatively low intensity reflection, and determining a position of the eye based on the region of the eye that corresponds to the relatively low intensity reflection.