What is the name of the sensor in the image?

Other Hardware Sensors
1

Hello everyone, I watched a video today:

I have a question about the sensor installed in the heading. It seems that it is a IR infrared sensor, but it consists of 8 head (4 IR receivers + 4 IR transmitters), does anyone know where can i buy it ?

2

You may be able to find something similar with a search for "IR line tracking sensor array".