Light corn syrup is used to rotate the plane of polarized light on the stage of an overhead projector. A polarizing filter allows only those photons with electric fields oscillating in a single plane ...

A UV protection lens filter is an accessory that attaches to the front of your camera lens and blocks ultraviolet light rays. Many photographers argue that UV filters are essential, while others ...

Blue light filter study reveals mixed results: Do glasses and screen protectors truly combat eye strain tech? Experts weigh in on the evidence. Pixabay, Innovalabs Concerns about blue light from ...