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 ...

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

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 ...

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.