Articles & information

The straightening.

This field is quite large and to cover in depth should refer to all kinds of frames (metal, pastinoi, griff, nylor, special occasions such pinfeel, wood, metal nylor etc.) together forever with their shapes, types of lenses (glass, organic, polycarbonate, trivex), the refractive index and the diopters. We will briefly try to refer to general rules and procedural controls needed during the straightening process of a skeleton.

In this issue we will refer to the greatest enemy of the workshop, the damage.

The damage as we all know, apart from financial burden can cause multiple problems, and to cancel the order.

We will try to map out the causes of errors and damage, in particular to draw attention to specific work-lab procedures which often occur losses and mistakes. You also appropriate to mention special cases that minimize the possibility of error or damage.

A well organized workshop needs a wide range of tools, from the most common and everyday, to those who may need rare.

In this article we will refer to some small but very useful tools that many times will facilitate the visual in everyday life. In the next issue we will focus on the overall organization of a laboratory bench.

When mounting the lens in pastinous and metal frames, the most important parameter to achieve a well-manufacturing, quality and aesthetics, is the shoulder that will make the lens.

requires a combination of technical knowledge, proper equipment and proper frame-lens choice before executing the recipe.

One common problem with pastinous backbones Acetate is to "gather" and pushing the lens out of the flange at the top and bottom of the frame.

This problem occurs especially in elongated shapes with thin paste up and down, particularly the negative lenses.

The initial construction may be good, but after time this problem occurs. It is mainly due to the skeleton because the material in the same time shrink and result in pushing the lens.