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My first blu-ray

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Couple pics of my brand new MXDL 405nm blu-ray baby. LD is from the 803t sled from geeks.





I so happy with it! :) :) :)
 

daguin

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Nicely done! I like this host for builds. I have several blu-rays. One of them is a very small build, but this host "feels" more powerful. It is nice and "solid" in your hand and, when matched with the Jayrob heat sink, it is unmatched for heat sinking ability. If I was a "red burner" kind of guy, I would build a big 22X into one of these with a Merideth glass module. For the 803T diode it is a bit of overkill, but it is also very well protected from overheating ;) You get to shine it for a long time :cool:

Peace,
dave
 
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I figured it was overkill too... I thought I just looked really good. Gives it a nice clean finish. :cool:
 

diachi

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Was that supposed to be a joke, PHR-803T is the serial number on the sled, nothing to do with wavelength, and Im also pretty sure Blu-Ray is 405nm
 
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lamborgini8 said:
Nice.

I am pretty sure blue rays are 403nm, not 803. I think 803 is IR.

Hmm... either a fail joke or a fail knowledge of current lasers... either way, fail.
 
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I fixed it to make it more clear. It was neither a joke nor misinformation. It was a case of bad sentence structure.
 

rubberband

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Diachi said:
Was that supposed to be a joke, PHR-803T is the serial number on the sled, nothing to do with wavelength, and Im also pretty sure Blu-Ray is 405nm

well i see how he could get that
the 2 is from the 2 diodes in the sled.

8/2=4

0=0

2*8=16

8+3=11

16-11= 5

see 405

ha duh!!!!!
 
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nvmextc said:
Nice, what drivers and batteries are you using?
The driver is just a simple resistor and capacitor. No current regulation. The batteries are three 3.6v 10440 rechargables from DX. sku.974

It's pretty simple. The batteries have a full-charge voltage of 4.2 volts. 3x4.2=12.6. Toss in a 68 ohm resistor and the current is capped at 110mA. Stick a cap on the side for surge protection and you're good to go.

Also, what I thought was a bit clever, is that since the metal housing of the flashlight serves as a common negative terminal, I put the resistor on the positive lead of the laser. That way, if somehow the resistor is bypassed in touching the exterior of the case, the whole device shorts out and the laser isn't exposed to a current overload. Not that it might happen, just gives you a bit of peace of mind if nothing else.
 
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Diachi said:
Was that supposed to be a joke, PHR-803T is the serial number on the sled, nothing to do with wavelength, and Im also pretty sure Blu-Ray is 405nm
Thought the same. :p




@VI: it could work :)
 

jayrob

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Event Horizon said:
The driver is just a simple resistor and capacitor. No current regulation. The batteries are three 3.6v 10440 rechargables from DX. sku.974

It's pretty simple. The batteries have a full-charge voltage of 4.2 volts. 3x4.2=12.6. Toss in a 68 ohm resistor and the current is capped at 110mA. Stick a cap on the side for surge protection and you're good to go.
Good job on that build there! Can't help but fancy the looks of that heatsink. :)

About your driver set up... This is interesting. What's the math there? 12.6/68(ohm) is 185mA's...right?
Then, as the voltage drops to say 3.6 X 3 = 10.8 volts/68(ohm) will be about 158mA's...
Jay
 




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