They’re used for HID lamps in projectors, so that 2 sides of the light are collimated by an aspherical lens.
Slide projectors have them too (but with a halogen incandescent lamp)
Don’t bother, no chance of getting even close to that cigarette lighter thing.
That same aliexpress store has this, but it is glass so a bit fragile to put in a flashlight. And for the price I do not expect it to be optical quality.
There’s not enough enthusiasm either so that we could have a thousand pieces made in China for a reasonable price.
Plus i have no idea how to deal with manufacturers, let alone Chinese.
Maybe rename the topic to “DIY über thrower”.
Awesome ‘host’
But they just stuck a E27 fitting in there making the whole thing pointless (hey, that’s a pun!)
Love the wooden tripod too.
Ridiculous price though.
I did some quick test on the fly with the cigarette lighter
just had the camera in one hand and the reflector in the other
its not perfectly focused but shows how it is, good hotspot and some lighter area around it, which is in my opinion not bad at all
XP-G2 R5 with dome at 0.5A
laser range meter says 11m
Oh, now it looks really bad in comparison…
I’m going to email optiforms tonight and see how much a 4-6” reflector will cost.
If it’s under $100 I’ll go for it.
Before random ordering a reflector size/focal length, we first must establish what ‘catch angle’ is optimal for a recoil reflector, and my suspicion is that 120 degrees is too much. My fear: the outer part of the reflector will produce a larger and fuzzier image of the die and therefore hardly contribute to the throw. As well as Lexel I will experiment with the cigarette lighter reflector to see if I find the same as with the Mirascope reflector.
