Please excuse if this is off topic, i was puzzled by the calculation. But after a little study it makes more senseāthe lightmeter is calibrated to provide a Lux value for a 1 square meter area at the sensor and not just for the tiny sensor area.
Lux is a measure of the light energy hitting a target area. The units of Lux are lumens/mĀ², where lumens is a measure of the light energy known as luminous flux, with units of cd-sr, candela-steradians. And of course area is measured in square meters.
First class build djozz
I had no conception what a Fresnel lens can do until your build. Iām still new here and very impressed how well this works.
Every part of this build is very clean and neat. Great build work djozz
I had to finish it today, so hereās the final stretch.
Because the star and the batman projections were not what I wanted for this build, I tried a little spider. The shape was too difficult for the fretsaw, so I went for etching a thin copper sheet, for so long that the copper was eaten through by the FeCl3. I took a long time, and the cutout was not perfect, but the result was rather nice.
Still, this was not the final version. But here are some pictures. Both are at about 40 meters.
Meet the Vir-O-blast C19. My pinstripe is certainly nowhere good enough to apply for a job at RR (link), but I still like my paint job.
The vir-o-blast c19 will not infect you, or cure you from anything (although this post may be the start of a new conspiracy theory ), but it may hopefully brighten up this dark winter a bit
Without the virus stencil in place and with the led die focused, the throw number of this build is over 4Mcd, but with the led die defocused and the stencil focused, the virus projection does 800kcd, still a significant number.
And some pictures of the finished light:
Tonight I will do a small video showing the zooming action, and still some loooooong distance shots showing the 4Mcd need to be made.
You know, somehow I missed this entire entry - lord knows how. It is amazing. Personally I am not going to be happy until I see a BLF logo in that thrower lol! (kidding of course)
fantastic work, well beyond anything i could muster! Good luck!