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Old 09-01-2011, 06:38 PM #1
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Default 445nm from DinoDirect

Hello, i know I dont make many posts here, i love the forum, but my job and college stuffz do not allow me to spend much time here! lol. I have just ordered a 445nm (supposedly 500mW handheld), and I've read quite a few articles regarding them.. However, I would like to know if these diodes are unusually susceptible to output power fluctuations from higher operating temperatures? I'm almost positive that the size of the laser i ordered will not have adequete heatsinking. I have experienced this with some even low power 650nm modules. When the case heats up, i've seen them drop from 5mW, to less than 1mW... Just wanted to know what i can expect. Never owned one before, trying something diffrent. I was seriously disspointed with Blu-ray... lol Thanks!


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Got a few goodies...
645nm - Radioshack TRUE 5mW, spare module 645nm - Radioshack TRUE 5mW, beam visible at night.
650nm - 200mW - dinodirect.. nuff said
660nm - 1mW, pretty boring, adjustable focus though.
532nm - 50mW - but way overspec. great beam!
532nm - 50mW - same model, crystals cooked. dead.
445nm - 500mW - waterproof, adjustable focus.
405nm - ~60mW - dead, blindly turned pots.
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Old 09-03-2011, 07:50 PM #2
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Default Re: 445nm from DinoDirect

pictures?
links?
usually dinodirect sells very underspec lasers
unless you go with "power certified" line or the ones in GB's
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Old 09-03-2011, 08:33 PM #3
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Default Re: 445nm from DinoDirect

Quote:
Originally Posted by blue bumblebee View Post
pictures?
links?
usually dinodirect sells very underspec lasers
unless you go with "power certified" line or the ones in GB's
It's pretty hard to mess up a 445nm.
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Old 09-04-2011, 03:19 PM #4
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Default Re: 445nm from DinoDirect

I heard DD indeed usually sells underspec lasers. However, the "Certified Power Guaranteed" line is pretty good. I ordered a 532nm 300mW from this line and it actually came 400mW with peaks around 500mW (after IR filter!!!).
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405nm 20mW DealExtreme pointer
445nm 1W Hotlights with CUSTOM BOOST driver
532nm 50mW DealExtreme SDLaser 301 with key, up to spec when IR-filtered!
532nm 400mW DinoDirect Firedragon III "Certified Power Guaranteed" 500mW peak!

632nm 8mW Tesla 30 year old HeNe made in Czechoslovakia
637nm 400mW WF-501b yellow anodized and CUSTOM BUCK driver
685nm 35mW diode in Jayrob pen host

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Old 09-04-2011, 08:22 PM #5
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Default Re: 445nm from DinoDirect

Quote:
Originally Posted by Johnyz View Post
I heard DD indeed usually sells underspec lasers. However, the "Certified Power Guaranteed" line is pretty good. I ordered a 532nm 300mW from this line and it actually came 400mW with peaks around 500mW (after IR filter!!!).
1. was this from the GB that rhd was hosting?
2. did you get the 400mw and 500mw mixed up?
because the output usually lowers after you install the ir filter..
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Old 09-05-2011, 07:30 AM #6
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Default Re: 445nm from DinoDirect

It was not from his GB, but it was the same product. I bought the 300mW model, and it is doing 400mW stable. I'm pretty sure it already had the IR filter, since after adding it the power dropped only like 20mW or so.
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Fenzir: So why is it that we want these kind of diodes? I don't understand.
anselm: Because they emit coherent light, that's why....
405nm 20mW DealExtreme pointer
445nm 1W Hotlights with CUSTOM BOOST driver
532nm 50mW DealExtreme SDLaser 301 with key, up to spec when IR-filtered!
532nm 400mW DinoDirect Firedragon III "Certified Power Guaranteed" 500mW peak!

632nm 8mW Tesla 30 year old HeNe made in Czechoslovakia
637nm 400mW WF-501b yellow anodized and CUSTOM BUCK driver
685nm 35mW diode in Jayrob pen host

LaserBee 2.5W USB LPM
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