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, the Fresnel lens was an ...

Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel ...

Zeiss introduces the Secacam 3, an affordable yet feature-packed cellular trail camera designed for nature enthusiasts and conservationists ...

Imagine a world where augmented reality glasses are as lightweight and comfortable as everyday sunglasses, or where ...

The ADM-I12W1 is a wireless passive infrared detector with high precision Fresnel optics and a wide range of functionalities as pet immunity and flexible sensitivity adjustments.