What are the advantages of having a darker tint at the top of the lens and a lighter tint at the bottom?

Apr 3, 2024 ... Category 3 (S3). This VLT ranges from 10-18%. Lenses with this ... Most sunglass lenses have Cat 3 lenses. The lower end of this range ... Fashion Sunglasses for Women Polarised UV Protection Ladies Eyewear for Photography Wandern Travelling Driving,Category 3 Luxury Gold Aviator Sunglasses With Mirrored Lenses, Luxury Gold Mirrored Aviator Sunglasses, Luxury Gold ... Handcrafted in Italy Lens Category: 3 100% UVA/UVB ... Nike Vision sets the standard for sports sunglasses. Learn more about our athletic sunglasses for men & women who live an active lifestyle ... Nike Radeon 3 Lb. 3 ... Feb 3, 2023 ... Category 3 glasses offer great protection against glare. They're perfect for a wide variety of weather conditions and cater to even the most ... Category 3 sunglasses are ideal for medium to bright sunlight. They are perfect for the beach, driving on sunny days, or any daytime outdoor activity. With a ... Oct 9, 2020 ... Yes, the two are tied together. Category 3 sun lenses will provide UV protection up to 400nm, which essentially is full UV blockage. Category 3 glasses allow between 8 and 18% of visible light through or stops 82 to 92% of visible light. So the Black Iridium's offer more protection from ... May 30, 2024 ... Filter category 4 lenses only transmit between 3% and 8% of light and are not suitable for driving at any time. Sunglasses with these lenses ... Oct 30, 2024 ... Category 2 lenses are somewhat tinted and may be intended for partly overcast days, category 3 lenses refer to dark lenses and offer standard ...