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:
Feb. 10, 1981
Filed:
Jul. 10, 1979
William H Byler, Winter Park, FL (US);
Other;
Abstract
An improved optical device in combination with means for holding the device in position before the eye including an optical device formed of an opaque mask for mounting before the eye, a horizontal transparent area extending substantially across the mask centrally thereof, an array of discrete circular transparent areas on the mask, the array being disposed below the horizontal transparent area and each circular area having equal diameters of between 0.5 and 1.2 mm. is characterized by an increase in the total aperture of the transparent areas on those portions of the opaque mask where the eye-to-mask distance increases thereby permitting a greater field of vision while limiting the influx of light.