Please provide your email address to receive an email when new articles are posted on . The multifocal spiral lens preserved multifocal behavior at smaller apertures than a conventional trifocal lens.

With the solar maximum inching closer, astrophotographers are expecting to see more and more auroras in the night sky. However, that isn't the only light show that photographers are catching photos of ...

Researchers have developed a spiral-shaped lens that maintains clear focus at different distances in varying light conditions. The new lens works much like progressive lenses used for vision ...