Collaborate Disseminate
If you are a Hackaday reader, you probably know what a Fresnel lens is. You find them in everything from overhead projectors to VR headsets. While it seems commonplace now, …read more Continue reading The Origin of the Fresnel Lens
The Game Boy Camera was the first digital camera that many of us ever interacted with. At the time it was fairly groundbreaking to take pictures without film, even though …read more Continue reading Astrophotography on the Game Boy Camera
No matter how many times 3D displays emerge and fade, the tech refuses to die. Researchers from Soochow University have now developed a glasses-free 3D display prototype, which uses a series of nanostructured lenses to produce more realistic images tha… Continue reading Glasses-free 3D display extends viewing distance for more realistic images
Researchers in China have developed a new type of adaptive liquid lens that changes its focal distance when a voltage is applied. Made using a new electrically responsive fluid, the lens is small, lightweight, and could be easily manufactured for use i… Continue reading Electrically active fluid helps new liquid lens change focus
If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, …read more Continue reading The Ins and Outs of Casting Lenses from Epoxy
While browsing through an antiques shop, [Nick Morganti] came across a Kodak slide projector with an absolutely massive lens hanging off the front. Nearly a foot long and with a …read more Continue reading Printed Adapter Puts Vintage Lens Back to Work
Lens caps are important for protecting expensive camera lenses from damage. Dust, grit, and other nasty things will all quickly spoil the quality of a shot, and can even permanently …read more Continue reading 3D Printing Your Own Sturdy Lens Caps
We think of radioactive material as something buried away in bunkers with bombs, power plants, and maybe some exotic medical equipment. But turns out, there are little bits of radiation …read more Continue reading Everything You Always Wanted to Know about Radioactive Lenses
When fate lands a very high quality lens in front of you, what do you do with it? If you are [Tim Hamilton], the solution is obvious. Use it in …read more Continue reading One Of The Largest Large Format Cameras You Will Ever Have Seen
The digital camera revolution swept through the world in the early 2000s, and aside from some unique situations and a handful of artists still using film, almost everyone has switched …read more Continue reading Analog Camera Goes Digital