公开(公告)号：US20180106900A1

公开(公告)日：2018-04-19

申请号：US15292251

申请日：2016-10-13

Applicant: Google Inc.

Inventor： Pierre-Yves Droz ,  Blaise Gassend ,  Caner Onal ,  David Hutchison

IPC: G01S17/08 ,  G01J1/44 ,  G01J1/04 ,  G01J1/42 ,  G01S7/481

CPC classification number: G01S17/08 ,  G01J1/0411 ,  G01J1/0414 ,  G01J1/0422 ,  G01J1/0437 ,  G01J1/0448 ,  G01J1/0474 ,  G01J1/0488 ,  G01J1/4228 ,  G01J1/44 ,  G01J3/0208 ,  G01J3/0229 ,  G01J2001/442 ,  G01J2001/4466 ,  G01S7/481 ,  G01S7/4816 ,  G01S7/4863 ,  G01S7/4868 ,  G01S17/10

Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example embodiment includes a system. The system includes a lens disposed relative to a scene and configured to focus light from the scene onto a focal plane. The system also includes an aperture defined within an opaque material disposed at the focal plane of the lens. The aperture has a cross-sectional area. In addition, the system includes an array of light detectors disposed on a side of the focal plane opposite the lens and configured to intercept and detect diverging light focused by the lens and transmitted through the aperture. A cross-sectional area of the array of light detectors that intercepts the diverging light is greater than the cross-sectional area of the aperture.