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:
Jan. 04, 1977
Filed:
Nov. 14, 1975
Applicant:
Inventor:
Arthur H Shoemaker, East Aurora, NY (US);
Assignee:
American Optical Corporation, Southbridge, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350 41 ; 350186 ;
Abstract
A drawing attachment having a focusing system, a power changer system and a telescope, when used in conjunction with an infinity-corrected microscope, permits superimposition of the object viewed through the microscope and a drawing surface for making a drawing of the object being observed. The size of the board is varied by the power changer to permit adjustment of the relative size of the object to the board. The device is designed to be used with an infinity-corrected microscope and is attached to the microscope in the parallel-light zone between the objective and the telescope lens of the microscope.