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Old 09-09-2010, 09:54 AM #1
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Default think geek now stock 447nm CNI's for $199

ThinkGeek :: Blue Laser Pointer II

Good deal?


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Old 09-09-2010, 10:09 AM #2
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Default Re: think geek now stock 447nm CNI's for $199

$200 for 5mW? Compared to CNI GB $270 for 500mW or more? $220 for DragonLasers 400mw? No I don't think so.
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638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
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589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
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Old 09-09-2010, 10:27 AM #3
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Default Re: think geek now stock 447nm CNI's for $199

It won't burn your eyes out !
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Old 09-09-2010, 11:03 AM #4
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Default Re: think geek now stock 447nm CNI's for $199

^^^^^It is true, but it will be very dim, you won't see the beam, maybe in a dark dusty room.
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Old 09-09-2010, 12:15 PM #5
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Default Re: think geek now stock 447nm CNI's for $199

I would think that this is actually a 405nm Laser...
They talk about DVD players and I know for a fact
that a Casio 445nm Laser at Threshold Current puts
out ~7mW.
They are stating <5mW and that host is quite small...

Or they could be using a low power 445-7nm LD that
will never output >20mW...


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Last edited by lasersbee; 09-09-2010 at 12:17 PM.
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Old 09-09-2010, 03:26 PM #6
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Default Re: think geek now stock 447nm CNI's for $199

I'm pretty sure its actually a 5mW 447nm (or 445nm whatevs). Have any laser enthusiasts taken apart an HD-DVD player? I think the article was saying that the reading diode in most HD-DVD players is a 447nm laser. It would explain the higher price tag. I personally can't remember seeing anyone on LPF ever take apart an HD-DVD player. Seeing as HD-DVD is now discontinued, it would be hard to find a player (and even harder for a burner) probably.

Edit: Here's some cheaper players but they are used and they're for the Xbox 360.

http://www.cowboom.com/store/product...ntentID=141193

Last edited by ZRTMWA; 09-09-2010 at 03:29 PM.
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Old 09-09-2010, 03:34 PM #7
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Default Re: think geek now stock 447nm CNI's for $199

I the lasers in the HD DVD players were violet 405nm ones.
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Old 09-09-2010, 04:23 PM #8
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Default Re: think geek now stock 447nm CNI's for $199

wondering how big part of the description ti true...
Quote:
It all started when a lone Japanese researcher, Shuji Nakamura, began working on developing a bright blue LED. After eight years of research the commercial blue LED was created. Two years later he had developed the diode for producing a blue laser. Using gallium nitride crystals (instead of zinc selenide) he was able to solve a problem that larger companies had been working on for years.
Blue Laser Pointer II

The much shorter wavelength of the blue laser is what enabled the next generation of high definition DVD players to come to market. It also completes the trilogy of basic colors (red, green, blue) that are now available for handheld laser pointers. The 447 nanometer blue laser light is sure to make all other laser pointers green with envy.

Why the high price point? Since blue lasers are still very new to the market (and until recently could only be purchased for thousands of dollars), they are unfortunately just as costly just as red and green lasers were when they first appeared for sale. Such is the price for being super cool and bleeding edge.
ONLY 2 years from first blue LED to 445nm LD ? [have I missed something?]
afaik BluRay (aka HD-DVD) is 405nm ?
I think first green pointer didn't cost <$50
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Old 09-09-2010, 06:11 PM #9
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Default Re: think geek now stock 447nm CNI's for $199

Sounds like usual marketing BS to me. Though CNI claims these have a near TEM00 beam, so that rules out casio diodes right there.
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Old 09-09-2010, 06:42 PM #10
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Default Re: think geek now stock 447nm CNI's for $199

Quote:
Originally Posted by ZRTMWA View Post
I'm pretty sure its actually a 5mW 447nm (or 445nm whatevs). Have any laser enthusiasts taken apart an HD-DVD player? I think the article was saying that the reading diode in most HD-DVD players is a 447nm laser. It would explain the higher price tag. I personally can't remember seeing anyone on LPF ever take apart an HD-DVD player. Seeing as HD-DVD is now discontinued, it would be hard to find a player (and even harder for a burner) probably.

Edit: Here's some cheaper players but they are used and they're for the Xbox 360.

Microsoft HD DVD Player for Xbox 360 (9Z5-00013) - Cowboom Store
HD-DVD drives for Xbox 360 were originally where people got their PHR diodes from when 405nm diodes were just starting to get big

I am unsure of whether Xbox HD-DVD drives still use the phr or a weaker 405nm diode.
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Old 09-09-2010, 06:52 PM #11
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Default Re: think geek now stock 447nm CNI's for $199

They used this same description on their 473nm laser which was selling for $299, which didn't use any sort of InGaN diode at all; so I wouldn't pay any mind to the description. I'm sure its a turned-down 447.
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808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk)
780nm:OLIKE 120mW
685nm:18650 47mW
671nm:PGL3M 281mW DPSS ∙ PGL3C 278mW
655nm:LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mW
638nm:Sanyo 40mW ∙ HL63133 200mW ∙ PGL3C 463mWpk ∙ ML520 700mW
633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW
612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW
609nm:REO LHOR 1mW
604nm:REO LSTP 2mW
594nm:Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk
589nm:CNI PGL3C 106mW ∙ CNI PGL3C 85mW
561nm:CNI PGL3C 30mW(41pk)
556nm:CNI PGL3C 20mW(22pk)
544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW
532nm:PGL3C 150mW(180pk) ∙ PGL3C 578mWpk ∙ PLC 440mWpk
515nm:JDS 221420GL ArI 30mW
510nm:52mW DG#2 ∙ 50mW 26650 DG
488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS FCD488 DPSS 25mW
ML:MG 65A106025 ArI ML 115mW
476/480nm:Nichia Diode 28mW
473nm:PGL3A 45mW(80pk) ∙ PGL3C 110mWpk ∙ PGL3C 95mWpk ∙ RPLB-25 60mWpk
465nm:DTR NDB7676 2.03w
458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W
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Old 09-09-2010, 10:02 PM #12
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Default Re: think geek now stock 447nm CNI's for $199

I'm curious about that. I get catalogs from think geek all the time. I though WL weren't FDA certified? But think geek sells them....
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Old 09-09-2010, 10:08 PM #13
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Default Re: think geek now stock 447nm CNI's for $199

Quote:
Originally Posted by lasersbee View Post
I would think that this is actually a 405nm Laser...
They talk about DVD players and I know for a fact
that a Casio 445nm Laser at Threshold Current puts
out ~7mW.
They are stating <5mW and that host is quite small...

Or they could be using a low power 445-7nm LD that
will never output >20mW...


Jerry
Quote:
Originally Posted by aryntha View Post
They used this same description on their 473nm laser which was selling for $299, which didn't use any sort of InGaN diode at all; so I wouldn't pay any mind to the description. I'm sure its a turned-down 447.
Nichia does make a 50mW 447, as does Osram, in a 3.8mm can, so it's entirely possible it's one of them, for the power being so low.
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Old 09-10-2010, 01:33 PM #14
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Default Re: think geek now stock 447nm CNI's for $199

Indeed, could be the smaller 3.8mm laser. The beam shot looks almost too good to be true.
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Old 09-10-2010, 02:17 PM #15
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Default Re: think geek now stock 447nm CNI's for $199

Dunno.. look at this picture: ThinkGeek :: Blue Laser Pointer II

It looks like bluray - non fluorescent things seem purple, while some of the book covers clearly fluoresce in a bluish white... I'm can tell for certain, but it sure is the exact thing i see using 405 nm myself.
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Old 09-11-2010, 07:27 AM #16
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Default Re: think geek now stock 447nm CNI's for $199

They have sell a 405nm violet pointer as well as this one.
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