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. 18, 1983
Filed:
Apr. 16, 1982
George H Schaefer, Wauwatosa, WI (US);
Stephen P Hirsch, North Prairie, WI (US);
Realist, Inc., Menomonee Falls, WI (US);
Abstract
The microfiche reader has two lenses carried by a segment mounted on an eccentric pivot which can be adjusted to move the pivot and, therefore, the lenses are in an eliptical orbit which permits the lens in the operative position to be centered on the optical path. When the segment is shifted to move the other lens into position that lens will be centered. Each lens is focused by moving the associated focusing slide in and out to move the parallel cams under the bosses carried by the lens barrel flange to raise and lower the lens to focus the image. The image is centered on the screen by adjusting the first mirror which is mounted on a bracket which pivots on a housing partition and has a wedge between the bracket and the partition. The bracket has teeth which engage serrations on the wedge so when the retaining screw is tightened the wedge is locked in place.