Cheap burning Blu-Rays soon.

Tek465

Newly Enlightened
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Apr 26, 2007
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Thought this might be of interest.

STRENGTHENING BLUE-VIOLET DIODE PRODUCTION CAPACITY AND BUSINESS

Highlight:

New 240mw blue-violet diode with a sample price of 4500 yen = $38 US
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April 23, 2007, Tokyo - Sony Shiroishi Semiconductor Inc. (hereafter Sony Shiroishi), a wholly-owned subsidiary of Sony Corporation (hereafter Sony), today announced that as of March 2007, cumulative shipments of laser diodes have reached 2 billion units since it started production in 1986. As of April 2007, Sony Shiroishi has also established industry-leading monthly production capacity of 1.7 million blue-violet laser diodes, offering a comprehensive product lineup of blue-violet laser diodes for the wide-ranging needs of external customers as well as for use in Sony products. Furthermore, with Sony Shiroishi scheduled to start mass production of high-power output 240mw diodes from November this year, Sony and Sony Shiroishi will continue to stand at the forefront of the technological development and market for laser diodes going forward.

Comprehensive Blue-violet Laser Diode Lineup
In addition to the stable production and supply of high-quality, competitive blue-violet laser diodes, Sony will also offer a comprehensive lineup of blue-violet laser diodes targeting the wide-ranging needs of customers.

Model name | Shipment Date | Sample Price

Blue-violet laser diode for BD recorder
"SLD3234VF" (output 170mW, φ5.6mm) |Apr, 2007 | 4,500 Yen
"SLD3234VFI" (output 170mW, φ3.8mm)| 5,000 Yen

Blue-violet laser diode for BD player
"SLD3131VF" (output 20mW, φ5.6mm) |Jun, 2007 | 900 Yen
"SLD3131VFI" (output 20mW, φ3.8mm)|1,000 Yen

Blue-violet laser diode for BD recorder
"SLD3235VF" (output 240mW, φ5.6mm) |Nov, 2007 | 4,500 Yen
"SLD3235VFI" (output 240mW, φ3.8mm)| 5,000 Yen
 
Blue-violet laser diode for BD recorder
"SLD3234VF" (output 170mW, φ5.6mm) |Apr, 2007 | 4,500 Yen
"SLD3234VFI" (output 170mW, φ3.8mm)| 5,000 Yen

Ok, who do I talk to? I'm in for testing this...

Thanks;
DDL
 
I wouldn't mind one of the lower powered ones...900 yen is only US$7.60, roughly.

Let's see...that would give me red, green and blue LASERs. Guess what I'm thinking... :)

How visible is the beam/spot? Green is extremely visible and red, not so much -- I need to assemble a collection of equally "bright" LASERs.

-- Chuck Knight
 
If those are CW ratings I'd be up for getting a couple. I wonder if there is a minimum quantity.

Chuck, 405nm light is not blue at all, it is true violet, a blacklight-type violet, and is not "visually efficient", being as it's near the limits of human vision. Might be great for scanning on a fluorescent surface though - you could get all kinds of colors that way.
 
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maybe I'm wrong, but I'd guess it would be about as visible as a red laser, since red is on one end of the visible spectrum and violet ont he other (scary thing is it's so close to UV, which makes IR look fun and almost harmless in comparison)

I'd say I'd like one of the 170mw, but they're the same price as the 240mw (???) so I'd rather just go for the gold instead! I'm certainly interested if anyone does a GB! (even if it is for the low-end 20mw diodes!)
 
Definitely in for a few for me ! I contacted one of the vendos on Ebay regarding the "sleds" and was able to haggle the price down to $69.00 just for the optics portion - I want them to go lower before I buy though - as I really have no need for the cubes, etc....even though they ARE cool ! :)
 
Color me interested in these little violet-blue diodes. I would be good for one or two at any mw level.


Gary
 
I don't think us mere mortals will be able to get our hands on one of these bare diodes directly. (At least not without signing a NDA or being part of the Blu-Ray Alliance group) Then again you never know, they might be willing to sell the sub-prime units to the open market.

But what is good news is that with those prices (and if production holds) we'll soon see a big push by mfgs to put cheaper BD drives out to consumers. We should start seeing drives and writers by the end of the year. And with the part #'s you'll know which device has the better diodes. Perhaps even find a vendor willing to sell the assemblies.
 
chuck said:
...How visible is the beam/spot? Green is extremely visible and red, not so much -- I need to assemble a collection of equally "bright" LASERs...
The visibility of the spot is significantly less than red of equal power.
Figure that human vision ranges from ~390nm to ~730nm.

A 650nm red laser diode is 80nm into the visual range.
A 405nm violet laser diode is 15nm into the visual range.

See the difference in visibility between red laser diodes and violet ones?
 
the thing that's good about the 405nm is that they have much more energy.. which means they'll probaly burn way better than anything else too... as long as much of the energy isn't reflected or reacted into fluorescence.

I've got a 400mw 457nm blue that's really awesome. burns black stuff way better than a similar powered greenie.
 
Also, all those people who said they were in for that $38 240mW 405nm diode.... add me into that pile haha. That's unbelievable!!!!!!
 
Hmm... At that price, you can count me in for at least 20. I could also finance this as a group buy if somebody else wants to do the actual receiveing and shipping part.

My GF would freak though! I've allready blown +10g's in the last 2 weeks on a new captive reef project for the new house, and I actaully had to sell stock for regular end of month bills! Thank God for payday in 3 days :) That means play money will be refilled :D
 

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