The turtle shell is undoubtedly one of the most well-known and used materials in the manufacture of glasses frames. Today, glasses of different materials are manufactured, but they have the colors and shades typical of the turtle shell. The shell of the turtles is...
You can find eyeglass frames in various materials, ranging from natural ones such as horn and turtle to plastic and metal. However, they should have some main characteristics: – lightweight (regarding both the specific weight of the material and the thickness of...
The vintage or antique frames have often imprinted, in addition to the name of the manufacturer or designer, also other acronyms more difficult to understand. These are often important because they can give us a range of information about the history or value of the...
Cellulose acetate is a polymer of natural origin that is obtained from the fibre of the wood or its waste, or from the residual fibers of cotton. Through a chemical process with the addition of plasticizers, stabilisers and dyes, it is used for the production of...
On social media there are often advertisements for beautiful designer glasses at discounted prices. These are not advantageous offers, but real scams as fake glasses cause damage to vision, severe disturbances to the cornea, crystalline, eyelids and skin, due to the...
Celluloid, as well as cellulose acetate, is a plastic material of natural origin, made from the cellulose of cotton fibre and the canopy. The invention of Celluloid It is curious how it was invented in 1869 by John Wesley Hyatt, an American printer. At the time,...
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