Patent ID: 9207647
Filing Date: 2015-12-08
Classification: G04G

Abstract:
1. A personal alarm system configured to wake up a subject by emitting radiation onto an eyelid of the subject, the personal alarm system comprising: an appliance configured to be worn near an eye of the subject, wherein the eye includes an eyelid; a radiation source carried by the appliance, wherein the radiation source is configured to emit radiation in a first wavelength band onto the eye of the subject wearing the appliance, wherein the first wavelength band includes visible wavelengths greater than about 590 nm, wherein the first wavelength band is selected such that upon transmission through the eyelid of the subject the radiation will be perceived by the subject as light of a particular color; a controller configured to control emission of radiation by the radiation source; and an eyelid detector operatively connected with said controller and configured to determine whether the eye of the subject is closed, wherein the controller controls the radiation source based upon signals from the eyelid detector to emit radiation onto the closed eyelid of the eye of the subject and cease emitting radiation responsive to the eyelid being open.