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Old 12-31-2009, 01:18 AM #1
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Unhappy Help with laser collimating

Hi, i recently bought this 50mW Green Laser Diode Module Industrial DIY for Kit - eBay (item 320461204424 end time Jan-10-10 03:12:44 PST)
and the seller says that the beam is "spread out" and at 10 feet, it is 18 mm dot. How do i collimate coherent light? what lens can i use? LInks plz o_0 thx


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Old 12-31-2009, 01:40 AM #2
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Default Re: Help with laser collimating

Reply info deleted because this Hotshot posted this question elsewhere as a duplicate post.
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Last edited by Hemlock_Mike; 12-31-2009 at 03:21 AM. Reason: Duplicate poster
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