Oval / Oblong LED sub lenses and optics?

[Gunnar]

Do anyone use them on bike lights?
Are sub lenses any god on 3 LED optics?
Is there any shots on an oval beam on the web?

/Gunnar

[n4zou]

Do anyone use them on bike lights?
Are sub lenses any god on 3 LED optics?
Is there any shots on an oval beam on the web?

/Gunnar

50 lumen 1-watt Luxeon star in matching Fraen elliptical optics screen shot.

Off road screen shot.



On road screen shot.

Keep in mind I power it with a dynamo and need to recharge the batteries as I pedal along as well. An LED with a higher lumen rating will produce a lot more light. Here is a photo of my light.

[rideatnight]

I used elliptical lenses on my first attempt - aligned vertically. I was blinding cyclists coming the other way. Using it for wide instead, I wasn't pleased with the throw, it seemed too much light was going off to the side. Two spot lenses give me enough spill to the side for road riding.

[Szemhazai]

rideatnight what lens did you use ? The best for bike are elliptical 10*x20* (so called 15*).

[n4zou]

rideatnight what lens did you use ? The best for bike are elliptical 10*x20* (so called 15*).

That’s what I used; Luxeon Fraen 10 X 20 and I found it perfect for use on my bicycle.

I found a stepper motor capable of providing 12-volts @ 1000mA with less drag than my cheap bottle dynamo. Now all I need to do is figure out how to mount and drive it from a wheel. More info here…
http://www.c-realevents.demon.co.uk/.../stepmotor.htm