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:
Dec. 10, 2024
Filed:
May. 12, 2022
Applicant:
Leica Instruments (Singapore) Pte. Ltd., Singapore, SG;
Inventor:
Miguel Diez-Ochoa Diez, Heerbrugg, CH;
Assignee:
Leica Instruments (Singapore) Pte Ltd., Singapore, SG;
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/34 (2021.01); G02B 21/00 (2006.01); G02B 21/24 (2006.01);
U.S. Cl.
CPC ...
G02B 7/34 (2013.01); G02B 21/0012 (2013.01); G02B 21/245 (2013.01);
Abstract
An autofocus device is disclosed, including a focusing lens which is movable. A laser beam passes through the focusing lens toward a focal plane; and a detector collects laser scatter from a nonfocal position outside of the focal plane. The device determines, from the collected laser scatter, the nonfocal position of the scattering source, and moves the focusing lens, based on the determined nonfocal position, such that the scattering source is at an origin of the focal plane.