Here’s some pics of the BLF-348 with the Vishay led. Later I added a 10mm ZWB2 filter. I think that this led will be swapped again at some point.
The tiny pill with heavily trimmed and drilled ledboard, had to remove multiple shorts from led-pads to core by scraping the side of the dielectric layer.
The result. Later a ZWB2 filter was added.
A peek inside. You can already see why a OP reflector does not work: the OP texture is larger than the die!
The beam. The led was not perfectly centered but that would have hardly mattered here.
