Transitions and UV coating

[Websta]

Hi,

Just wanted to know whether transition lenses only use UV light to activate?
If this is the case, how would a UV coating affect the transition, or could a AR coating affect the way the transition works?

Thanks.

[For-Life]

Transitions block 100 percent UVA and UVB, so a UV coat is not needed. AR does not negatively affect transitions, and does help preserve the life of the process (turn yellow quicker without AR).

I am pretty sure transitions are affected by UV only

[MarcE]

If you put a UV coat on a transitions lens, it won't activate, trust me. A 'friend' tried it once;) .

Transitions is activated w/ UV only. Some others, like Rodenstock Colormatic Xtra, and at least one of the glass lenses (maybe thin and dark?) are activated with both visible and UV light. So these will activate about 1/2 in the vehicle.

I believe all the others (Sunsensors, PGX, Instashades, Indochromic, cast-in-house) are all UV only like Transitions. I don't know about Hoya's Sunlens brand.