Marketing question

Working on that invention I was talking to you about.
At first I was thinking of marketing it to stars, making it impossible for paparazzi to take their photos.
Now, I'm thinking, I could do that at first, with a higher price until the market saturated.
Then, what if I went to a broader market. Longer battery life and a longer lasting and lower emittance ... well that's enough.
The back of people's cars so cops could not record their license plate.
Walking through downtown London, no face recognition, at an ATM, etc?
Hmmmmm?