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Laser Host Question

R

Ryo

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I was wondering what's going to be the difference between using a 3 AAA versus using 2 CR123 batterys for a 240-300 mW laser build?
I wouldn't think power would be effected since the circuit is regulated by a FlexDrive. Usage time probably would be less with the AAA, though don't know how much. AAA is cheaper to get than CR123.

I have have to buy a flashlight since my Dorcy is designed differently.. where I would have to wedge a custom heatsink from the outside in since that was the original design of the LED's plastic lense. (unlike the the Dorcy Jr where the cap has to be screwed off to remove the reflector & lense). If there's no difference in output power and usage time on the AAA is reasonable, then I'm going for a 3 AAA host.. I'm looking at the MXDL flashlights :)
 





sk8er4514

sk8er4514

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Ryo said:
I was wondering what's going to be the difference between using a 3 AAA versus using 2 CR123 batterys for a 240-300 mW laser build?
I wouldn't think power would be effected since the circuit is regulated by a FlexDrive.  Usage time probably would be less with the AAA, though don't know how much.  AAA is cheaper to get than CR123.

I have have to buy a flashlight since my Dorcy is designed differently.. where I would have to wedge a custom heatsink from the outside in since that was the original design of the LED's plastic lense.  (unlike the the Dorcy Jr where the cap has to be screwed off to remove the reflector & lense).  If there's no difference in output power and usage time on the AAA is reasonable, then I'm going for a 3 AAA host..  I'm looking at the MXDL flashlights :)
Click to expand...
3 AAA's would give you 4.5V while 2 CR123 would give you 6V. If using the flexdrive for a red diode (I assume) then probably the 3 AAA's would be better. The flexdrive is meant to handle up to 5.5V for a red diode, so you would need to use a silicon diode in series with the driver w/ the 2 CR123s (see flexdrive instruction sheet).

good luck,
Kendall
 
R

Ryo

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Thanks again Kendall..  You're always answering my questions.. and I always appreciate it.

I'm going with the AAA just because it's easier and cheaper than buying CR123 batteries.  :)  Plus it's a bit shorter.

[Edit] Duh.. I rushed my message.. I bought the CR123 MXDL 4171 Flashlight since I heard it's high power. Was going to do the AAA but since I read the 4171 being used for high power (up to 300mW) setups.. just wanted to follow. I'll get the AAA version for my Blu Ray build. :)
 
jayrob

jayrob

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Just to chime in on the 'high power' piont....

With the use of a boost circuit, such as the excellent FlexDrive driver by DrLava, the 3405 AAA host is excellent for a red burner too! With such a driver, you can use either host for building a red burner, or a blu-ray as well! :)

Check out this side button host:
http://www.laserpointerforums.com/forums/YaBB.pl?num=1217045236
Jay
 
R

Ryo

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I bought 2 of those drivers for that reason.. good for red, and good for blu ray. :)
 
sk8er4514

sk8er4514

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Ryo said:
Thanks again Kendall..  You're always answering my questions.. and I always appreciate it.

I'm going with the AAA just because it's easier and cheaper than buying CR123 batteries.  :)  Plus it's a bit shorter.

[Edit] Duh.. I rushed my message.. I bought the CR123 MXDL 4171 Flashlight since I heard it's high power.  Was going to do the AAA but since I read the 4171 being used for high power (up to 300mW) setups.. just wanted to follow.  I'll get the AAA version for my Blu Ray build.  :)
Click to expand...
if you want that high of power. make SURE you have a [link=http://www.laserpointerforums.com/forums/YaBB.pl?num=1202452073/0]heat sink[/link]. the diode will be very upset if it is not cooled properly.

also it's a bit tricky to find a way to hold the [link=http://www.hightechdealz.com/index.php?main_page=product_info&products_id=9]Aixiz (or Sure) module[/link] in the flashlight without a heat sink.

Jayrob makes an [link=http://www.laserpointerforums.com/forums/YaBB.pl?num=1202452073/0]excellent heat sink for the MXDL :)[/link]

good luck,
Kendall
 
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