Near-field optical sensing system
    1.
    发明授权
    Near-field optical sensing system 有权
    近场光学传感系统

    公开(公告)号:US09109949B2

    公开(公告)日:2015-08-18

    申请号:US13829009

    申请日:2013-03-14

    摘要: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for sensing touch and/or gestures in the near-field area overlying a light-guiding layer within a device or other optical sensing system. In one aspect, modulated infrared light is emitted into the overlying area, and the light reflected by objects within the overlying area is redirected through the light-guiding layer to infrared sensors. In one aspect, a masking structure can be located between the light-guiding layer and the infrared sensors. In some aspects, probability mapping or backtracing can be used to estimate the locations of objects within the overlying area.

    摘要翻译: 本公开提供了系统,方法和装置,包括在计算机存储介质上编码的计算机程序,用于感测覆盖设备或其它光学感测系统内的光导层的近场区域中的触摸和/或手势。 在一个方面,调制的红外光被发射到上覆区域中,并且由覆盖区域内的物体反射的光被重定向穿过导光层到红外传感器。 在一个方面,掩模结构可以位于导光层和红外传感器之间。 在某些方面,可以使用概率映射或回溯来估计上覆区域内的对象的位置。