US 12,360,038 B2
Transmission apparatus, measurement system, and camera system
Takeaki Itsuji, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 20, 2022, as Appl. No. 17/933,708.
Claims priority of application No. 2021-157910 (JP), filed on Sep. 28, 2021.
Prior Publication US 2023/0101420 A1, Mar. 30, 2023
Int. Cl. G01N 21/3581 (2014.01); G01N 21/84 (2006.01); G01N 21/88 (2006.01); H10F 39/00 (2025.01)
CPC G01N 21/3581 (2013.01) [G01N 21/8422 (2013.01); G01N 21/8806 (2013.01); H10F 39/8023 (2025.01); G01N 2021/8427 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A transmission apparatus comprising:
a plurality of transmission units each including a plurality of oscillation elements configured to oscillate terahertz waves, and connection lines configured to connect the plurality of oscillation elements; and
an optical unit disposed on the plurality of transmission units and including a plurality of optical elements,
wherein each of the plurality of transmission units has a surface provided close to the optical unit and includes an oscillation region where the plurality of oscillation elements is arranged, and
wherein a distance between the surface and the optical unit is 2D2/λ or larger, where λ denotes a wavelength of the terahertz waves and D denotes a length of the oscillation region.