US 12,032,059 B2
Radar-optical fusion article and system
Kui Chen-Ho, Woodbury, MN (US); Jonathan D. Gandrud, Woodbury, MN (US); Mohsen Salehi, Woodbury, MN (US); Douglas S. Dunn, Woodbury, MN (US); and Jaewon Kim, Woodbury, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Appl. No. 17/612,329
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed May 22, 2020, PCT No. PCT/IB2020/054894
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/240382, PCT Pub. Date Dec. 3, 2020.
Claims priority of provisional application 62/852,524, filed on May 24, 2019.
Prior Publication US 2022/0299630 A1, Sep. 22, 2022
Int. Cl. G01S 13/931 (2020.01); B62J 45/20 (2020.01); B62J 45/41 (2020.01); B62K 3/00 (2006.01); G02B 5/124 (2006.01); G06K 19/077 (2006.01)
CPC G01S 13/931 (2013.01) [G02B 5/124 (2013.01); G06K 19/07758 (2013.01); B62J 45/20 (2020.02); B62J 45/41 (2020.02); B62K 3/002 (2013.01); B62K 2202/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A radar-optical fusion article for attachment to a substrate, the radar-optical fusion article comprising:
a first retroreflective layer configured to retroreflect at least a portion of light having a wavelength in a range from about 400 nm to about 2500 nm; and
a second retroreflective layer disposed adjacent to the first retroreflective layer, the second retroreflective layer configured to retroreflect at least a portion of an electromagnetic wave having a frequency in a range from about 0.5 GHz to about 100 GHz.