Anybody bought a X10DR beam expander from LG?

[Wanjiru]

Hi everybody,

Has anybody bought a X10DR beam expander from LG and how good is it?
Is a aries 225 really like a 2,25 W green laser with the beam expander?
What can it burn through?

 

[rhildinger]

I haven't purchased one yet, but would certainly like to. I can tell you that it does NOT make a 225mw laser into a 2250mw laser, it merely widens the beam so that divergence can be reduced. Combined with the ability to focus the enlarged beam to a point, this makes the effective range of the laser from a burning and dot size perspective much longer.

 

[Amnizu]

The 2.25W figure probably has more to do with energy density than output power.

 

[Justin]

Correct! This figure is for the energy density, since you can focus the beam down (at close range) to actually be smaller than at the aperture. This means that for close range burning, the laser will perform like a much more powerful device. Over long range, the X10DR will keep the beam smaller and more focused resulting in much longer range.

 

[Switch]

That figure is actually 2546W/cm[sup]2[/sup] :
You can take it like this: A laser dot with an area of 1cm[sup]2[/sup] AND the same density as the 0.1mm dot achievable with the extender will have 2546W

 

[Techstuf]

Upon researching 'laser guide stars', it was interesting to note that merely a 10-14 watt laser is used to excite sodium atoms at an altitude of 62 miles to the point of releasing enough photons to resemble a star.  This can only be accomplished by expanding the beam to nearly 20 inches in diameter to reach a focal point at so high an altitude.

Youtube: Laser guide star

That being said, I have found that a lowly $10.00 Daisy rifle scope works VERY well as a personal beam expander.  It's all glass optics are great for lasers with a robust beam density.  The main tube takes CR123A Lithiums perfectly. I prefer the silver model.  The internals are well suited for the purpose and the focal length is easily and reliably adjusted.


5/8 inch beam diameters anyone?


Peace,


TS

 

[Razako]

I wonder what a Herc 400 could burn through with its beam focused down to a pin point?

 

[Switch]

I wonder what a Herc 400 could burn through with its beam focused down to a pin point?

like 6kW/cm[sup]2[/sup]

 

[tatman]

See the video in the optics section posted by Steve. Wonder no more! thats Windstrings and 400+mw of Herc.(is 147 ft. far away?)

 

[Switch]

It pretty damn far.It's almost 50 meters.And the balloon pops pretty QUICKLY.