Lost thread on the efficiencies of TIR lenses and reflectors

[QReciprocity42 (efficacy ≠ efficiency)]

Also try these threads:

Attempt to reduce OTF light loss with Carclo optics

Inspired by Djozz experiment, I decided to find a way to reduce the output loss in the super popular Carclo optics. In this case I’m using the triple 10507 LED used were the well known Cree XPG to represent small die LED. Next I will repeat the test with Nichia 319A to represent bigger die LEDs. I carefully enlarge the three positioning hole in Noctigon MCPCB to 2,7mm. This way the optic can sit directly on the LED while still maintain the correct position. All three optic legs are snugly fit i…

Light loss in a S2+ triple mod, added similar data for a reflector light in post#8, added data in post#20

I made a mellow S2+ triple shorty with gen.2 92CRI 3000K Oslon Square leds a while ago with a 2x7135 driver (700mA) as a reading light for my girlfriend, and it occurred to me today that with its very flat output it is a good light to measure what the actual light loss is from this common BLF-mod. The typical Carclo 10507 TIR triple optic claims 10% loss, but that is measured with an XP-E size die, and there's the rim at the front that blocks some light too. And I like to use the glass lens to p…