What device used in the Hubble telescope was later adapted for commercial use?

The answer is CCD. The CCD, or the charge-coupled device was used in the Hubble Space telescope and was later adapted for commercial use. CCD is a light-sensitive circuit used for storing and displaying data such as images. This is also used in digital cameras today.

7.03-1.70=5.33 and 6.80+5.09=11.89 and 5.5-3.01=2.49