When HN users recommended it
1 HN user recommended this in 2023, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2023, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
Speaking of Fresnel lenses, one of the coolest applications is a plastic "wide-angle lens" sticker that you could affix to your car's rear window (https://www.amazon.de/-/en/WIDE-ANGLE-WINDOW-FRESNEL-OPTICAL...) to increase the field of view. Their popularity has dropped since the advent of "back-up cameras" however.