Photo-thermo-refractive (PTR) glasses are the class of polyfunctional materials that combine the properties of several monofunctional materials such as photo-refractive, laser, luminescent, and ...

PROVIDENCE, R.I., June 10, 2025 /PRNewswire/ -- Meller Optics, Inc. has introduced custom fabricated sapphire prisms that bend, split, or reflect light but are resistant to scratching, and ...

Lay each prism over one lens of the goggles. Use scissors or a craft knife to cut away any excess so the prism fits precisely over the lens. Make sure the lenses of the goggles are clean and dry. Peel ...