Patent ID: 6147612
Filing Date: 2000-11-14
Classification: G08B

Abstract:
An optic dual function sleep preventing system, working on an electric energy source and carried by a mounting device to set on a user's head when in use, comprising:a dual monitoring system, including:an optic eyelid monitor properly set in the vicinity of an eye of said user by said mounting device to monitor the movement of the eyelid of said eye when in use, comprising: an emitter for transmitting appropriate, modulated electromagnetic waves towards said eye; and a predetermined number of optic sensors for sensing the influence on the intensities of received portion of said waves by said movement of said eyelid, such that when said movement occurs to change said intensities, it is detected by said monitor and a corresponding output is created by said monitor;a head tilting monitor set on the side of the head of said user carried by said mounting device when in use for detecting a head's tilting, comprising an optic tilt switch using a micro optic monitor to detect a small ball's rolling in a closed tube system inside said switch due to said tilting; when said tilting causes said ball's rolling to different positions inside said tube system, the intensity of said waves in the regions of said positions, also changes so as to be detected and a corresponding output is created by said tilt switch.