[Johnny]

Столкнулся со спорным вопросом. Должна ли кювета пропускать UV?

primummobile

This test determines whether a transparent material transmits UV-A radiation. This is useful as Dr. Kilner felt that UV was an important factor for the aura screen to work.
However, this is denied by researcher Mark T., who has determined that it is better to block the UV radiation to lessen eye strain.

Пропускает ли ультрафиолет оптическое стекло?

А по поводу стабильности бромида пинацианола...

primummobile - J.J.Williamson

Goggle active element: pinacyanol bromide in gelatin, as documented in operating instructions.
Time of manufacture: mid 1930s - late 1980s?
Still work? Yes
Performance: good to poor

До сих пор работают) Правда, это в желатине...