Does this exist? Normal TIR optics from companies like Carclo are made out of UV blocking materials so they wouldn’t work in a uv flashlight.
Closest I’ve found is LEDiL’s VIOLET line but those aren’t TIR as far as I can tell.
Awesome! Interesting how they use borosilicate glass but it looks like their transmittance is only 60-70% from what I saw. Not sure how I feel about losing 30-40% output right off the bat.
Read the data sheets in the page linked by Agro.
They specify 90% transmittance at 365 nm for their borosilicate glass UV optics.
I did. That’s how I got the 60-70. Their “Oslo”, “Bern-UV”, and “TIR LENS FOR LED CAVITY 7 MM, 42°” line - the products that intrigued me the most only specified that in their datasheets. However, I now see that “Madrid” offers 90% transmittance. Odd discrepancy since they’re all supposedly “SUPRAX 8488” - Borosilicate Glass