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:
Oct. 20, 1998
Filed:
Jun. 05, 1997
Bruce Rubin, Cherry Hill, NJ (US);
Other;
Abstract
An optician's ruler having a generally elongated body having at least first and second principal surfaces, a first end, a second, opposing end, a first longitudinal edge and a second longitudinal edge is provided. An interpupillary distance scale is located on one of the at least first and second principal surfaces of the body. The interpupillary distance scale has indicia at regularly spaced intervals coinciding with standard units of measure to permit measurement of the distance between the pupils of a subject. A segment height scale is also located on one of the at least first and second principal surfaces of the body. The segment height scale has indicia at regularly spaced intervals coinciding with standard units of measure oriented generally perpendicular to the first longitudinal edge of the body. The optician's ruler may also be provided with a cross member for alignment of the segment height scale with the relevant reference point. Alternatively, a sliding indicator which includes a cross member can be moved along the segment height scale to accurately measure from the bottom of the lens to the desired reference point on the wearer's eye.