The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Apr. 29, 1993
Kallis H Mannik, Webster, NY (US);
Other;
Abstract
This invention is an eyeglass attachable alarm signal device for automobile and truck drivers, preventing them to fall asleep, while driving. It is designed both for daytime and for nighttime driving. A beam of a narrow-band light of any color is used for optical sensing, whether the driver's eyelids are closed or are in an open position. The use of infrared light is preferred, because infrared light generates least distraction to the driver. A tiny slide-adjustable light emitter carrier, sliding along the eyeglass temple, is used for positioning the light emitter on the eyeglass properly for each driver. A narrow-band light beam from this emitter is aimed across the surface of the driver's eye, just above the eyeball, between the eyelids, and it is sensed in the opposite corner of the eye by means of a light sensor, which has a narrow band light filter mounted in front of it. For infrared light preferably the Kodak's Wratten filter #87 or #87 C is used. For waking up the driver, whose eyes have been closed for a longer time period than about one second or less, an electronic circuitry is activated by means of the closed-eye signal from the light sensor, turning on an alarm signal, a buzzer or similar, after a one second or shorter time delay.