How sunglasses are made

How sunglasses are made?

When the sun is shining, there’s nothing better than grabbing your favourite pair of designer sunnies and heading outside to catch some rays. As well as being a trendy and fashionable accessory since the 1940s, sunglasses also have a very practical use in that they help to protect your eyes from the harmful UVA and UVB rays of the sun. But when it comes to their design, you might be wondering how designer sunglasses are made and what materials they’re made of too.

In our latest blog post, we take you behind the scenes to reveal the process of how your favourite shades are brought to life through the use of different materials – read on to find out more.

What are frames made of?

Sunglasses frames are typically made of plastics such as Zyl, nylon and metal. In terms of their different uses, zyl frames offer manufacturers with a cost-effective option that can be laminated with various colours. In addition, nylon frames are commonly used for sports due to their lightweight and flexible nature, and metal frames are often more rigid and sometimes have spring loaded hinges to make it easier for them to grip to the wearer’s face.

You might also be surprised to learn that in more recent years, various types of woods including bamboo, ebony and rosewood have been used by sunglasses manufacturers as they can help to make sunglasses non-toxic and allergy free too.

What are lenses made of?

Glass or plastics such as acrylic and polycarbonate are the most commonly used materials for sunglasses lenses.

In terms of the difference between these materials, it is thought that glass lenses provide the best optical clarity and scratch resistance, however they are often heavier than plastic lenses and can also shatter more easily. In comparison, plastic lenses are much lighter but are also at risk of scratching too.

Why are lenses different colours?

Sunglasses lenses are usually grey, green, or brown shades in order to avoid or minimize colour distortion, something which could affect safety when driving for example.

Here is a closer look at the benefits of different lens colours:

  • Grey and green lenses maintain true colours and are considered to be neutral.
  • Brown lenses cause a small amount of colour distortion, and also increase contrast too.
  • Turquoise lenses are best for conditions where light is medium or high, and not only are they good at enhancing contrast, they do not cause significant colour distortion either.
  • Yellow gives optimum object definition but unfortunately can create a harsh amount of visible light. In addition, amber coloured lenses are thought to make objects in the distance appear more distinct, especially in conditions with snow or water, making them popular with winter sports fans and those who enjoy fishing too.
  • Blue or purple lenses are mainly used for cosmetic reasons.

Why are some lenses polarised?

You will see in designer sunnies shops that some styles of sunglasses have lenses that are made of plastic sheeting that has been polarised. The main reason for this is that it helps to reduce the glare of the sun, which is caused by light reflecting from non-metallic surfaces including water and snow.

As part of this, sometimes a mirrored coating is applied to the lens to help deflect some of the sun’s rays. Although this is especially useful in bright conditions and it does not get hot in sunlight, unfortunately UV radiation is not always reflected as well.

Now that you know how sunglasses are made and the materials they’re made of, you might be thinking about your next designer sunnies purchase. Luckily, you’ve come to the right place because at Designer Sunnies we stock a wide range of designer sunglasses from big-name designer sunnies brands such as Ray-Ban and Dolce & Gabbana, all at fantastic prices. Why not treat yourself and visit our online sunglasses shop to buy a new pair for yourself today?

What materials and colours are your favourite when buying designer sunglasses? We’d love to know, so make sure you join in the conversation by leaving your comments below.