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. 19, 1993
Filed:
Sep. 17, 1991
Josef Reiner, Cologne, DE;
Rainer Kirchhubel, Asslar, DE;
Oculus Optikgeraete GmbH, Wetzlar, DE;
Abstract
A vision-testing apparatus includes a concave mirror and at least one test object (2) which can be changed in position and is arranged between the concave mirror (1) and its focal point (f) in a first optic path (W1). In order to be able to carry out different vision tests with an apparatus which is simple in design and compact in manufacture, it is provided that the eye (7) of a person being tested is arranged at a focal point (F) of the concave mirror (1) and that between the concave mirror (1) and the test object (2) there is arranged a first partially translucent dividing mirror (3) to form a second optic path (W2) from the concave mirror (1) to the eye (7) of the person being tested.