Here We Go Again

[steve-o]

.. I still think sombody needs to seperate the lower wavelength ones .. e.g. - 460-465nM .. pm me .. I'm still looking for a 488 diode ..

[hivelaser]

So these diodes are 460 - 465nm, or the same 445nm that we get in the other projectors? If that is true that would be a great improvement towards 473nm...

[DTR]

I have never seen this 9mm 445nm laser diode. I am very curious about it.

They are not 9.6mm they are 5.6mm. We just had pictures of the array until I cracked one open. With the larger lenses, wider diode spacing and the original Nichia data sheet said 9.6mm(so we know they existed) we assumed they were 9.6mm diodes. This is not to rule out the possibility that they have a large stock of 5.6mm they contracted for and will be switching up to the 9.6mm at some point.

So these diodes are 460 - 465nm, or the same 445nm that we get in the other projectors? If that is true that would be a great improvement towards 473nm...

Not that we have seen. One of the individuals that I sent some out to tested them to be about the same as the A140 around 448nm.

http://laserpointerforums.com/f65/a1...tml#post926172

[300EVIL]

The optimal wavelength for blue would be the 455-460nm range. 470nm+ leads more into cyan.

[White-Light]

I have to wonder if 9mm diodes aren't being introduced to stop laser display use.

A larger diode could have a wider emitter and a certain company will know this and know that a wide stripe could make them unsuitable. Therefore I have to wonder if having failed in every other method of stopping harvesting, that company has decided to go with a wider emitter thus rendering the diodes useless for anything other than cinema projectors. Just a thought.

[danielbriggs]

I have to wonder if 9mm diodes aren't being introduced to stop laser display use.

A larger diode could have a wider emitter and a certain company will know this and know that a wide stripe could make them unsuitable. Therefore I have to wonder if having failed in every other method of stopping harvesting, that company has decided to go with a wider emitter thus rendering the diodes useless for anything other than cinema projectors. Just a thought.

No .

[LaNeK779]

i don't think that a corporate giant would introduce such a big and costly change in the manufacturing process just to stop some low-budget guys harvesting some projectors. besides, all the major 445 laser module manufacturers do not harvest projectors. they just buy factory direct

so, hopefully, this does not seem to be the case

[White-Light]

I just wondered because that certain projector company must be a huge client buying hundreds of thousands a year and if they're worried about harvesting resulting in an accident and that damaging their corporate image, I can well imagine them requesting a new diode package that was unattractive to harvesters where all other methods have failed.

Also, the diode company themselves would appear to have an interest in this as people are getting diodes by harvesting for a few $ when they sell them for laser purposes at over a thousand $ each (last time I saw a purported single diode price posted anywhere on the internet). With so many prof companies as well as amateurs using 445nm it would seem they are potentially losing hundreds of thousands of $ each year to harvesting as opposed to selling diodes for what is in my opinion a ridiculously high amount as a specific laser diode. That alone would surely justify the cost of a re-design and repackage. It would be a shame if they did though as I can't see people sticking with 445nm anyway if they revert back to the high price as people will just look for the next cheapest blue solution and not the diodes, which would probably see a return to 473 as the blue of choice and that in turn would see both the diode company and the projector company lose out in sales anyway.

[taggalucci]

I don't believe there's any factual basis for suggesting C@5!0 are changing their diodes to combat harvesters.

[danielbriggs]

besides, all the major 445 laser module manufacturers do not harvest projectors. they just buy factory direct

Oh, I wouldn't be too certain about that...

I just wondered because that certain projector company must be a huge client buying hundreds of thousands a year and if they're worried about harvesting resulting in an accident and that damaging their corporate image, I can well imagine them requesting a new diode package that was unattractive to harvesters where all other methods have failed.

The new diode package will most likely be because of thermal considerations. 5.6mm or 9.0mm, people will still use them... What's the issue?

Also, the diode company themselves would appear to have an interest in this as people are getting diodes by harvesting for a few $ when they sell them for laser purposes at over a thousand $ each (last time I saw a purported single diode price posted anywhere on the internet).

Look at the quantities involved: Economies of scale.

With so many prof companies as well as amateurs using 445nm it would seem they are potentially losing hundreds of thousands of $ each year to harvesting as opposed to selling diodes for what is in my opinion a ridiculously high amount as a specific laser diode. That alone would surely justify the cost of a re-design and repackage.

Casio make great watches and calculators... making a few hundred laser projectors/modules? Not-on-your-nelly.

It would be a shame if they did though as I can't see people sticking with 445nm anyway if they revert back to the high price as people will just look for the next cheapest blue solution and not the diodes, which would probably see a return to 473 as the blue of choice and that in turn would see both the diode company and the projector company lose out in sales anyway.

Pom pom pom pom...