IR Infrared sensor anlternative ?

im searching for an alternative to buying 100 infrared sensors i just need a surface which sees if my hand is near it and the leds make a picture of my hand with leds it shouldnt cost too much up to 20€

here is an explaination

No smart forum user will click on that link.

Post an intelligent explanation of what you are trying to do, as text.

enter into your favorite search engine the following "Adafruit AMG8833 IR Thermal Camera Breakout" and you may find what you are looking for or not.