IKEA Led Torch - Pinhole Projector

cults3d

This converts the IKEA Knäred LED torch into a pinhole projector, making it an excellent kids' night light. The concept hinges on converting a point light source into a perfect image without using any optics for focusing. This approach isn't very efficient because most of the light is blocked behind the pinhole, resulting in a relatively dark image. However, it still works reasonably well in a completely dark room. The hole size and alignment with the LED directly impact the projection quality. Unfortunately, it's not an ideal point light source, so the projection becomes slightly blurry at farther distances. The Knäred torch is a fantastic little hackable light. I originally came up with this idea back in 2016 when I first got one, but it took me until now to finally make it happen. Sadly, it appears that Ikea no longer sells this particular item.