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:
Jun. 14, 1977
Filed:
Dec. 31, 1975
Hugh V Cottingham, Upper Montclair, NJ (US);
Joseph Scrocco, West Orange, NJ (US);
Black Hole Nebula Incorporated, Upper Montclair, NJ (US);
Abstract
An optical comparator for facilitating identification of plant parasites is provided. The comparator includes a lens system for defining at least one object plane and a viewing region. The lens system produces a magnified image at the viewing region of a specimen, such as a plant leaf, when the specimen is disposed at the object plane. A support member is provided for supporting the lens system, the support member further defining an opening for positioning the specimen at the object plane. The support member is further adapted to position a light source to direct light on the object plane. The support member is constructed and arranged to position a photographic reference at the object plane and thereby provide a juxtaposed magnified image of a specimen and photographic reference at the viewing region.