Aspheric question

[crizyal]

I have seen that some lights have a 1 lens system vs. other lights having a 3 lens system. I imagine that the 3 lens system is probably better though I don't understand the principal behind why.

I currently have a Romisen RC-C6 II from Shiningbeam and I really like it.

I was considering a Lens - Light after reading a review on it. The web page states that they have a 1 or a 3 lens system, which brings me back to my question.

Which is better? Why?

Thank you!

 

[sqchram]

I'll take a guess. A three lens system can better focus the light. For example most lenses for a camera (like an SLR system) have multiple lens elements to better focus the light.

Now I suppose one *possible* way to make a real badass aspheric lens for a flashlight is to get an SLR lens and mount it in front of the emitter. You would mount the lens backwards with the objective lens closest to the emitter.

 

[DuncanHynes]

Camera lenses gather light they don't project it...the more glass light passes through, the more dissipated. Do you want spot or flood...spot long ranges, flood for close up?

 

[crizyal]

I really like the spot aspect of the aspheric. So would the spot be tighter (or more light projected) with a 3 lens system?

 

[leukos]

I don't know which light you are referring to, but if you are looking at Lenslights, the 3 lens system will collect more light and give you a tighter beam: http://www.candlepowerforums.com/vb/showthread.php?t=105248

 

[crizyal]

Yes it is the LensLight I was looking at. Thanks for the link. I think that I will go for it (after my credit card cools a bit). :twothumbs