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. 08, 2021
Filed:
Dec. 17, 2019
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare SA, Glattpark, CH;
James F. Munro, Ontario, NY (US);
BAXTER INTERNATIONAL INC., Deerfield, IL (US);
BAXTER HEALTHCARE SA, Glattpark, CH;
Abstract
An optical imaging assembly configured to obtain an image of an object. The assembly includes a light-transmissive sleeve arranged on an optical axis and configured to enclose the object. Four refractive elements are arranged in series on the optical axis and each have an input surface and an output surface. An aperture stop is disposed on the optical axis between the third and fourth refractive elements. The input surface of the third refractive element, the output surface of the third refractive element, the input surface of the fourth refractive element, the output surface of the fourth refractive element, of a combination of the foregoing have radial symmetry.