PROXIMITY SENSOR

摘要

A device including a photon emitter, a photon receiver, and a screen opaque to photons following a direct path from the outside of the device to the photon receiver.

主权项

1. A device comprising:
a body having a cavity; an opaque structure; an aperture in the body that places the cavity in fluid communication with an environment external to the body; a photon emitter located in the cavity below the aperture and configured to emit photons through the aperture to the environment external to the body; and a photon receiver located in the cavity below the opaque structure of the body and configured to receive photons that are each reflected from both an object in the environment external to the body and from a surface of the opaque structure.