3M inşaat gözlüğü değildir, zaten tek bir modeli de yoktur. Doğru, cam değil malzeme ve ana işlevi gözü yabancı madde, UV ve kaynak kıvılcımı vs. gibi şeylerden korumaktır. Çoğunlukla polikarbonat malzeme kullanılır ve bu malzeme -sarı renkte bile- UVA ve UVB ışınlarını %99'a yakın keser. Görüş kalitesi iyi düzeydedir, tabii daha kaliteli marka gözlüklerle karşılaştırınca kalite farkı mutlaka vardır. Fakat göze zararlı olduğunu söyleyemeyiz. Fiyat/fayda oranı üst düzeyde bir donanımdır.
3M™ Protective Eyewear FAQ
What lens material is used in protective eyewear?
Polycarbonate is the most common lens material used in plano (non-prescription) types of eyewear. Polycarbonate is considered stronger and lighter than glass and has good optical properties. CR-39®* is an allyl/resin plastic used for certain prescriptions where polycarbonate is not suitable. CR-39 monomer is used for casting plastic lenses for prescription eyewear, sunglasses and other plastic products requiring high abrasion resistance and high quality optical properties. Lenses made from this plastic, however, are not as strong as those made with polycarbonate. Polycarbonate is less expensive than both glass and CR-39.
Why is UV protection important?
Exposure to ultraviolet (UV) radiation is associated with a variety of health effects including arc-eye or welders flash, cataracts, sunburn and skin cancer. The eyes are particularly vulnerable to the effects of UV radiation. The sun is the main source for UV exposure. Use of polycarbonate in the lens material is >99% effective in blocking UVA and UVB rom natural sunlight. Arc welding is a common man-made source of UV.