Allentown Optical Corp.

anti-reflective coatings

All about anti–reflective coatings

Anti-reflection coatings are made from extremely thin layers of different dielectric materials that are applied in a high vacuum onto both surfaces of the lens. The quality of the AR depends upon the number of layers applied to the lens. The early coatings had only a single layer of magnesium

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Brain Test

Another interesting test Joseph, you are Balanced-brained, which means that you rely equally on both the left and right hemispheres of your brain. You have a balanced brain — able to draw on the strengths of both the right and left hemispheres depending on context. Typically, people with balanced right and left hemispheres are very

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Eating Habits

This is a test that I took at http://web.tickle.com, it lasted about 10 minutes.

Your Eating Style Report Your Eating Style Emotional Triggers Dissecting the Diet History Behind the Test Reading List

Joseph, you’re a Relaxed Eater

You understand that food is more than just about sustenance. Overall, you treat yourself well. Even

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Traditional vs Freeform Surfacing

Traditional lens making tools can work only on the backside of the lens. They cannot create aspheric shapes or the complex curves required for PALs (progressive addition lens). This is why the progressive channel of designs has traditionally been pre-molded by the manufacture on the front surface of the lens.

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Shamir Lens Designs

SHAMIR LENS DESIGNS

Creation – 19mm fitting height

Freeform Optics – design resolution up to six times more accurate than standard cast PAL’s

Previous technologies created semi-finished PAL’s which used ceramic molds (mechanical molds)

Freeform Optics – patented software which bypasses the ceramic molds and creates digital molds (Glass Molds) which

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Shamir

The following are facts about SHAMIR

Shamir was established in 1970 as an engineering firm and is now the largest lens designer in the world.

In 2004 Shamir had cooperatively designed 7 of the 12 top selling progressive lenes

Shamir designed the first free form lens the Definity six years ago.

Shamir has trademark rights

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DriveWear Lens

Today our lives are strongly influenced by the automobile. Traditional eye wear and sun wear does not serve this lifestyle very well. Transitions lenses do not get dark in the car because the windshield blocks the UV light which activates the photo chromic response. Polarized sun wear blocks dangerous glare, but does not change in

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Tinting

Things to consider:

New or old lens and lens material.

CR-39 is the most versatile material to tint. Not much to worry about. Check old lens for defects and any coatings (ex. AR) applied. AR may need to be stripped first, this could damage the lens.

Polycarbonate can be tinted if a tintable scratch resistant

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Remote Order Entry

Remote Order Entry (ROE) can be very useful when placing orders after hours, on weekends and holidays. We receive the orders every 15 minutes. The orders are in our system immediately after they are received. This saves time, especially when the lens style needs to be ordered.

ROE is compatible with almost all tracer.

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Drill Style Frames and lens material selection

Although polycarbonate is a good choice for drilled lenses, trivex would be the BEST choice.

Poly can crack under stress, tiny cracks form by drilling and using cleaning agents not recommended by Eye Care Professionals. None of these should occur if TRIVEX is used.