Valk headlight

[RonW]

What's the chrome cone in the Valk's headlight for? I use the same Valk bulb in my other bike because it's cheaper, but the Valk headlight is way brighter with the same bulb.
The headlight in my other bike doesn't have the chrome cone. Haven't seen it in any other bike either.

[Jims99]

I believe it's to help divert the light to the reflectors and keep any strays from shooting out the front.

[Bagger John - #3785]

I believe it's to help divert the light to the reflectors and keep any strays from shooting out the front.

Look at the feed horn of your typical microwave/radar antenna and where it's positioned in the parabolic curve.

The layout here is similar. For those who are bored and wishing to play with a little math, I can point you to some formulae for calculating the position of the illuminating source, primary and secondary reflectors for frequency X and horizontal/vertical beam widths of Y and Z degrees, respectively. This assumes a beam of 0 degrees H/V skew - divergence calculations are a little more involved.

[98valk]

https://www.candlepowerforums.com/threads/purpose-of-cups-inside-headlight-reflector.270504/

[RonW]

Good link! and thanks for enlightening me. If you don't mind, summarizing, the cone is known as a bulb shield or an anti-glare shield for oncoming traffic. A poster in the link stated that the inside of the shield (cone) isn't chromed, so the purpose of the shield isn't so much to redirect the bulb's light back to the parabolic reflector. Also, although H4 bulbs have a blackout tit, it's not enough to shield all the glare.

[98valk]

Good link! and thanks for enlightening me. If you don't mind, summarizing, the cone is known as a bulb shield or an anti-glare shield for oncoming traffic. A poster in the link stated that the inside of the shield (cone) isn't chromed, so the purpose of the shield isn't so much to redirect the bulb's light back to the parabolic reflector. Also, although H4 bulbs have a blackout tit, it's not enough to shield all the glare.

I took mine out and shortened the end about 3/16". I posted about this, but I didn't save it and haven't been able to find it. it changed the light cutoff and now puts more light on the road.