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:
Apr. 27, 2021
Filed:
Oct. 21, 2019
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Weonkyu Koh, Suwon-si, KR;
Junghyun Park, Seoul, KR;
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); G01J 3/02 (2006.01); G02B 5/28 (2006.01); H01L 21/8258 (2006.01); H01L 21/02 (2006.01); G01J 3/42 (2006.01); G01J 3/12 (2006.01);
U.S. Cl.
CPC ...
G01J 3/2803 (2013.01); G01J 3/0229 (2013.01); G01J 3/42 (2013.01); G02B 5/285 (2013.01); H01L 21/02521 (2013.01); H01L 21/8258 (2013.01); G01J 2003/1213 (2013.01); G01J 2003/1217 (2013.01); G01J 2003/2806 (2013.01); G01J 2003/2816 (2013.01);
Abstract
An optical spectrometer may include an optical filter including a plurality of filter layers formed on a base substrate. The filter layers may include a perovskite material and at least two filter layers among the plurality of filter layers may include perovskite materials having different composition ratios from each other. The filter layers may show respective band-gap characteristics in different optical wavelength ranges from each other, in an optical absorption spectrum and/or an optical transmission spectrum.