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  #1  
Old 21-04-2008, 11:33 AM
Dennis G
Dennis G

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Help needed to reduce laser out put

REDUCE THE OUT PUT OF A LASER POINTER FROM 10mwTO 5mw.
Can this be done? Your assistance would be greatly appreciated.
Dennis G
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  #2  
Old 21-04-2008, 11:54 AM
Cerberus
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do a pot mod in reverse?
but seriously, most want to increase output, why do you want to reduce it?
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  #3  
Old 21-04-2008, 12:02 PM
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dannat (Daniel)
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use really cold batteries??
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  #4  
Old 21-04-2008, 12:28 PM
Cerberus
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you could reduce the voltage to the lowest it will work with, providing it doesn't have a constant current driver
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  #5  
Old 21-04-2008, 01:35 PM
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MrB (Simon)
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Use a ND filter?

Or halve the amount of current going to it with a series resistor, though this might drop it below the point of lasing(?) and make it an expensive LED, and won't work if it's got a constant current source as Cerberus has said.
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  #6  
Old 24-04-2008, 07:04 PM
Dennis G
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Reduce laser output to 5mw

The reason I ask this question arises from the new West Australian regulations preventing the use of lasers over 5mw. If this can be done successfully without destroying the laser, I'll pass the word on to users of laser finder. This then brings up the question : are 5 mw laser finders of any use?
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  #7  
Old 25-04-2008, 01:07 AM
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Harb
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I'd wait and see what happens.....common sense may yet prevail.....
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  #8  
Old 26-04-2008, 10:22 AM
Popeye (Bert)
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5mW Lasers

G'day Dennis. I have a 5mW laser pointer and find it very useful. Another member of our local group has the same pointer as well as a 10mW pointer and finds that the smaller value pointer is the better of the two.
Cheers!
Popeye
(ex Sandgroper!)
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