| Luxar | Cooling | Optics | Gallery |
|---|
From the equations on the FAQ I was able to create the following table, assume the luxor has a beam width of 3.8mm.
| Focal length | Spot size | DOF | Power density |
|---|---|---|---|
| 0.50 | 43.4 | 0.3 | 13471.1 |
| 0.75 | 65.2 | 0.7 | 5987.2 |
| 1.00 | 86.9 | 1.2 | 3367.8 |
| 1.50 | 130.3 | 2.7 | 1496.8 |
| 2.00 | 173.8 | 4.8 | 841.9 |
| 3.00 | 260.7 | 10.9 | 374.2 |
| 4.00 | 347.6 | 19.3 | 210.5 |
| 5.00 | 434.5 | 30.2 | 134.7 |
| 6.00 | 521.4 | 43.4 | 93.5 |
This is a diagram that is only a sketch but should be enough to use the laser. The luxar has a little circuit board. The only inputs are 28volts, and +/- for TTL logic. One of the nice things about the device is you can control the power output of the beam by varying a pulse-width-modulated wave from 0-25khz. Or you you can just tie the +5v to high and it will run on continuous power.
If the above does not makes find a friend to help. If the above does not make sense and you still want to run the laser, disconnect the white plug to the circuit board, and apply 28volts to that. As the pinout diagram shows the white wire is negative, the blue wire is positive.
Wavelength: 10.6 µm Fixed Rated Power: 20W Power Stability: <+/- 2% Mode: >95%TEMoo Beam Size: ~3.8mm Beam Divergence: <5.0 mRad full angle Beam Quality: M2<1.3> Polarization: >100 to 1 Fixed Linear Modulation: TTL up to 25Khz Supply: 24-28Vdc @ 6A Heat load (W, max) 150 Flow Rate >2 gpm Temperature 5-30°C Coolant Water + 25% Dow Frost CoolantThe reason I think this is incorrect because of a pdf file I found described below. The original ebay listing had some product information that included the phrase "Ruggedized for the most severe industrial environments". If you search google using this phrase you'll find a pdf which you can download here (1.6Meg). This is for a different laser, obviously, but I think ultimately the luxar is pretty much the same device, and we're just looking at the same laser except the one in the pdf is a larger wattage. Its a guess, but I think just a couple bits of information were dropped when the html for the ebay laser went up. There were probably some translation problems which the seller didnt notice.
One thing that would be really useful is to know the remark "5-30°C" is actual 15-30 operating temperature. I really dont want to have to bring the coolant below room temperature to make this thing work at optimum. I would also like to know if that heat load of 150 watts is correct. I would hazard a guess that its actually 1500. True for other lasers of this size.
You can get all this because they put stuff in their press release archives, like:
http://www.lumenis.com/site/content/investor/releases/archive/2001/index.asp
if you go to the Coherent site, you can see some lasers that are veeRRRRrrry much like ours.
http://www.cohr.com/Products/index.cfm?fuseaction=Interfaces.ProductLine&PCID=23&PLID=38
So anyway I called a guy at Luminus, he told me there's no information remaining at all for Luxar products. He said that based on the number that's on the ebay listing it is -not- medical equipment, but was actually from the Luxar industrial part. I think he also did not know a lot about what he was talking about.
I think if there's any more information on the Luxar the only thing would be to start hitting the laser news.groups and find someone that either owned a luxar or used to work there. I also heard from the Synrad salesman that Luxar is the result of a (Laakman) divorcing, where he took Synrad, and his wife took the medical division, Luxar.