Old 06-29-2011, 02:57 AM #17
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Default Re: Is this laser any good?

I am inclined to agree with you there Wanna. I do like boost drives for lesser current builds like 405nm ones and prefer linear with 445nm.


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Old 06-29-2011, 07:15 AM #18
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Default Re: Is this laser any good?

i think 900mw for that laser is a GREAT deal!
maybe you just got lucky for that laser
i was looking into that laser a while ago too
looking forward to your detailed review! ^^
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Old 06-29-2011, 03:22 PM #19
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Default Re: Is this laser any good?

Quote:
Originally Posted by blue bumblebee View Post
i think 900mw for that laser is a GREAT deal!
maybe you just got lucky for that laser
i was looking into that laser a while ago too
looking forward to your detailed review! ^^
900mW?? Perhaps you misread. This laser is operating as a laser at 689mW
You can round that up to 700mW not 900mW. Still at $123 it is a pretty good deal for a 700mW waterproof blue laser. Focussable too correct?
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Old 06-30-2011, 04:55 AM #20
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Default Re: Is this laser any good?

Quote:
Originally Posted by The_LED_Museum View Post

Power output with the collimating lens removed: 891mW.
i see 891 here?
or is the collimating lens the "focus" lens and the laser is useless without it...
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Old 06-30-2011, 05:20 AM #21
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Exclamation Re: Is this laser any good?

Quote:
Originally Posted by blue bumblebee View Post
i see 891 here?
or is the collimating lens the "focus" lens and the laser is useless without it...
The collimating lens is what allows a diode laser to produce that characteristic narrow thin beam we all know that lasers produce.

With the lens in place, you get this:


(12" -- beam terminus image bloomed ***SIGNIFICANTLY***)


(Approx. 10 feet; beam terminus image also bloomed, but not as much as in the previous photograph)


And without the lens, you get this:


(12" with collimating lens ass'y {lens in a threaded metal collar} removed)

Last edited by The_LED_Museum; 06-30-2011 at 05:23 AM. Reason: Corrected a silly typo -- oops!!! :-O
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Old 06-30-2011, 05:40 AM #22
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Default Re: Is this laser any good?

Quote:
Originally Posted by blue bumblebee View Post
i see 891 here?
or is the collimating lens the "focus" lens and the laser is useless without it...
Bingo.
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