公开(公告)号：US20210263300A1

公开(公告)日：2021-08-26

申请号：US17101302

申请日：2020-11-23

Applicant: Google LLC

Inventor： Thomas L. Haslett ,  Robert M. Krause ,  Jill Berger ,  Kevin Yasumura

IPC: G02B26/08 ,  G02B27/10

Abstract: A programmable beam blocker includes a liquid crystal based grid of pixels, one or more groups of pixels, or plurality of pixels, corresponding to individual beams of light. The application of a voltage through one pixel can change the phase of the liquid crystal material to prevent the transmission of light through it.

公开(公告)号：US11880030B2

公开(公告)日：2024-01-23

申请号：US17101302

申请日：2020-11-23

Applicant: Google LLC

Inventor： Thomas L. Haslett ,  Robert M. Krause ,  Jill Berger ,  Kevin Yasumura

IPC: G02B26/08 ,  G02B27/10 ,  G02B6/35

CPC classification number: G02B26/0833 ,  G02B27/1006 ,  G02B6/3518

Abstract: A programmable beam blocker includes a liquid crystal based grid of pixels, one or more groups of pixels, or plurality of pixels, corresponding to individual beams of light. The application of a voltage through one pixel can change the phase of the liquid crystal material to prevent the transmission of light through it.