Differenze trattamenti lenti

[dorgabri]

Ragazzi, qualcuno sa spiegarmi la differenza dei trattamenti fatto sulle lenti?
Ad ES. Differenza tra lenti UCL-Boroflat-AR.

E quanti tipi di trattamento esistono?

[Budda]

AR = antiriflesso

Boroflat
This glass is similar to Pyrex® in that it is a borosilicate type of material and able to withstand extreme thermal shock. That's where the similarities end. Unlike Pyrex®, this glass is manufactured using Schott's Microfloat process. This produces a piece of glass that's virtually flawless and has mirror-like surface quality. Since 2002, when Flashlightlens.com introduced this type of glass to the flashlight world, many manufacturers have seen the benefits of Borofloat and now make this glass standard on their lights. It's outstanding mechanical, thermal, and optical properties make it a great choice for those not concerned with achieving that extra 5% of light transmittance that UCL® provides. This lens is also the preferred choice for those building "extreme" lights that produce high amounts of heat.
Light transmittance: 94%
Substrate: Microfloat borosilicate
Coatings: None
Thermal durability: Outstanding

UCL
Light transmittance: 98% to 99%
Substrate: Low iron, water-white float glass
Coatings: Multi-layer broadband AR - 2-sides
Thermal durability: Good - typical of most glass
Technically, it's not a "UCL" because the substrate isn't water-white glass - BUT... The AR coating on these is so incredible, it performs just as well, with transmittance levels at a steady 99% Once you get one in your hands and look at the beautiful deep purple reflection of the AR, you'll be glad you ordered.
Light transmittance: 99%
Substrate: Float glass
Coatings: Multi-layer broadband AR - 2-sides
Thermal durability: Good - typical of most glass