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:
May. 03, 2022
Filed:
Aug. 28, 2019
Applicant:
Viettel Group, Ha Noi, VN;
Inventors:
Assignee:
VIETTEL GROUP, Ha Noi, VN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/08 (2006.01); G02B 13/14 (2006.01);
U.S. Cl.
CPC ...
G02B 17/0896 (2013.01); G02B 13/146 (2013.01); G02B 17/0856 (2013.01); G02B 17/0884 (2013.01);
Abstract
The invention proposed the catadioptric system, which consists of two main components: the first component comprising the two reflective mirrors, in which surface distortion of mirroris parabolic, surface distortion of mirroris aspheric; the second component is a relay consisting of three lenses: lens, lens, and lensarranged after the medial image plane correspondingly; the second component helps reduce aberration to ensure receiving good quality image at a plane of the sensor.