Henemeaning

This experiment explores the polarization, spatial and temporal coherence of the output of a He-Ne laser, as well as the basic conditions for laser action. Charles Townes (Nobel Prize 1964) and Arthur L. Schawlow (UofT BSc 1941, UofT PhD 1949, Nobel Prize 1980) invented the laser in 1958.

Neon

While regular plastic lenses reflect about 8 percent of the light hitting the lenses, high-index plastic lenses can reflect up to 50 percent more as compared to plastic lenses. This causes more strain on the eye, especially in low-light conditions. With the latest revolutions in technology, AR coatings reduce reflections to about 0.5 percent, allowing 99.5 percent light to pass through.

You can choose from a variety of AR coatings that we offer:Standard Anti-reflective CoatingPremium Anti-reflective CoatingCrizal Alizé UV Anti-reflective CoatingCrizal Avancé UV Anti-reflective CoatingWorried about the harmful blue-light? Learn more about the revolutionary blue-blocking technology with Premium Blue-Blocker lenses and Crizal Prevencia lenses.

All lenses, regardless of the material, have a tendency to reflect light. Anti-reflective coatings, also called "AR coating" or "anti-glare coating" reduces these reflections allowing more light to pass through. This minimizes distractions, prevents strain on the eyes and improves vision.

he-ne laser

3rd year Arts and Sciences undergraduate and Varsity Blues volleyball player, Anastasia Danilova, working on an earlier version of the Helium-Neon Laser.

It also reduces glare for tinted polarized lenses. Anti-reflective coatings improve clarity and light-sensitivity of transition lenses.