US 12,241,998 B2
Remote sensing device with duplex optical element and related methods
William Clifton, New Smyrna Beach, FL (US); and Neha Mohan Kadam, Edgewater, FL (US)
Assigned to AGERPOINT, INC, Durham, NC (US)
Filed by AGERPOINT, INC., New Smyrna Beach, FL (US)
Filed on May 4, 2021, as Appl. No. 17/307,094.
Claims priority of provisional application 63/019,500, filed on May 4, 2020.
Prior Publication US 2021/0341582 A1, Nov. 4, 2021
Int. Cl. G01S 7/481 (2006.01); G01S 17/89 (2020.01)
CPC G01S 7/4811 (2013.01) [G01S 7/4817 (2013.01); G01S 17/89 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A remote sensing device comprising:
a mobile platform; and
a Light Detection and Ranging (LIDAR) transceiver carried by said mobile platform and comprising
an optical source,
a detector,
a duplex optical element coupled downstream from said optical source and upstream from said detector, said duplex optical element comprising an optical flat, and a reflective layer on said optical flat defining an opening therein, said duplex optical element configured to direct an output of said optical source through the optical flat at the opening and directly to a target, and direct a return optical signal reflected from the target to said detector via the reflective layer, and
a range gate configured to exclude returns outside a tree canopy.