I am experimenting with low brightness settings and dark mode-- chronological, Dec 17 2024 1. My phone does not have a backlight function
2. A device that beams light is already widely available, under the name "torch", "flashlight" or "lamp". Most of these such devices are capable of being placed on the ground.-- pocmloc, Dec 17 2024 I was thinking more of a rotating device that lasers light into a hole on the back of the phone that can be reflected by prisms behind the screen-- chronological, Dec 17 2024 OK
Do you think there is a risk of being dazzled, or permanently blinded?-- pocmloc, Dec 17 2024 Upvote because phone frustrations, downvote for category choice, balances out to no vote.-- normzone, Dec 19 2024 I updated the category
How do you illluiminate what is there by lasers-- chronological, Dec 29 2024 random, halfbakery