Seiko Lenses

4-minute video presentation on Seiko branded back surface lens technology

Shamir Progressive Optical Lens

Shamir manufacturers the following lenses: Genesis, Piccolo, Attitude, Office, Shamir Creation, Shamir Freeform, Shamir Autograph. An eyecare professional locations can also be found on their website An easy guide to understanding the highly technical nature of Shamir progressive lenses.

How To Test For A Polarized Lens

Wise Geek- Sunlight itself is not polarized – light from the sun will either be absorbed or reflected horizontally, diagonally or vertically. The problem this causes for fishermen and drivers lies in the horizontal reflectivity. Sunlight bouncing off a horizontal surface will strike the viewer’s eyes at a similar angle. This means the glare from […]

Adjustable Liquid Filled Eyeglasses


Transitions Optical Photochromic Visor for PowerSports

TRANSITIONS OPTICAL AND SHIELD TECH DEBUT PHOTOCHROMIC VISOR FOR THE POWERSPORTS INDUSTRY Expansion of Transitions Sunwear Line Brings Photochromic Technology to Motorcycle Driving for Comfort and Performance PINELLAS PARK, Fla., August 25, 2009 – Transitions Optical, Inc. is partnering with SHIELD Tech LLC, a manufacturer of technologically superior motorcycle face shields and visors, to launch […]

Galileo and How He Made Telescopes

He was professor of mathematics at the University of Padua in Italy and a skilled maker of scientific instruments. In June or July 1609 he made at least one telescope that magnified objects by the power of three. By August he had succeeded in making one that could magnify objects by the power of eight. […]

How Eyeglasses Are Made