Title:
LIGHT RESTRICTION DESIGNS IN OPTICAL SENSING APPLICATIONS HAVING SHARED WINDOWS
Document Type and Number:
WIPO Patent Application WO/2018/148326
Kind Code:
A3
Abstract:
This relates to an electronic device configured for optical sensing having shared windows and including light restriction designs. The light restriction designs can include one or more of optical layers, optical films, lenses, and window systems configured to reduce or eliminate crosstalk between optical components. A plurality of accepting sections and a plurality of blocking sections can be employed to selectively allow light having an angle of incidence within one or more acceptance viewing angles and block light with angles of incidence outside of the acceptance viewing angles. In some examples, the light restriction designs can include variations in optical and structural properties so that the light restriction designs have spatially varying acceptance angles. Variations in structural properties can include, but are not limited to, differences in widths, heights, and/ or tilts of the accepting sections and/or blocking sections.
Inventors:
SHAO GUOCHENG (US)
CHARBONNEAU-LEFORT MATTHIEU (US)
BLOCK UEYN (US)
CHARBONNEAU-LEFORT MATTHIEU (US)
BLOCK UEYN (US)
Application Number:
PCT/US2018/017287
Publication Date:
October 04, 2018
Filing Date:
February 07, 2018
Export Citation:
Assignee:
APPLE INC (US)
International Classes:
G02B3/08; A61B5/024; A61B5/1455; G01J1/04; G02B5/22
Domestic Patent References:
| WO2014188411A1 | 2014-11-27 |
Foreign References:
| US20060291243A1 | 2006-12-28 | |||
| US20110080538A1 | 2011-04-07 | |||
| US20160058309A1 | 2016-03-03 |
Attorney, Agent or Firm:
NGUYEN, Jean et al. (US)
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