hi. I’m making a new headlamp.
It has a separate battery pack for about 8000 lumens.
(8000 lumens/100,000 candela)
It is for those who collect seafood from the sea or those who need high-brightness light.
Which one of the integrated reflectors vs stand-alone reflectors is on the headlamp?
I’m debating whether it’s a better fit.
The integrated reflector does not have a uniform shape of light as shown in the 1st photo.
But the engineer said. It is said that the integrated reflector is better for heat dissipation under conditions of similar head size, brightness and candela.
Therefore, it was said that an integrated reflector would be better for a headlamp for work that requires high brightness for a long time.
Is the engineer right? Which reflector do you think is more suitable?
Not sure I’ve personally heard reflectors discussed as a consideration for heat dissipation… To me it would come down to how you intend the light to be used. Headlamps are usually used for lighting up nearby tasks, and so you usually want less throw/more flood to distribute light evenly. I think the “integrated reflector” is too throwy for a headlamp personally, but it depends on how you expect to use it.
If the engineer says one reflector has better thermals than another I assume he’s basing that on some kind of data. I don’t have any to compare. I’m not going to argue with the engineer. I can’t imagine it’s that much of a difference. Fractions of a degree maybe? That thing is gonna get hot no matter what.
I’d be more concerned with the flower petal beam on a headlamp. Hurts my eyes just looking at it.
Maybe you can clean up the beam by using the integrated reflector with “orange peel” texture. It’ll reduce the throw distance a bit but will remove the petals.
Thanks this answers something I have thought of, looks like the petal effect is caused by the radius of the outside cups being to small. Because of this more of the outside reflector has to be cut away leaving gaps in the edge of the beam. The solution to that is to space the reflectors so that the minimum has to be cut away.
Looks like the ideal would be to only cut enough of to fill the gaps. In other words the reflectors are to big for the head or head needs to be bigger to move the LEDs out.
