445and447

[rikgrimsby]

What's the difference between 445 and 447. They are both blue but is one stronger then the other ?

 

[Prototype]

The range for most diode lasers is +/-10nm. The Nichia diodes are 455nm at a case temp of 26*C I believe, and diodes usually shift wavelength by .3nm/*C, I assume places like Dragon Lasers and CNI just took a mean wavelength.

 

[TTerbo]

or its a sales pitch

 

[Prototype]

That would make no sense, you can't tell the difference without very expensive equipment and there's no benefit to labeling it as something 'brighter' when it's only 2nm brighter.

 

[HIMNL9]

Uhm ..... if Casio diodes are really the Nichia chips in 5,6mm cans, i remember that their first datasheets was specificating "medium wavelenght 445nm" with "minimum 440" and "maximum 455" ..... so, no differences at all ..... is probably just a commercial trick for make the buyers think they are buying something different

 

[TTerbo]

thats what i was trying to say

 

[ShaOwned]

The difference is CNI actually measured it, and it that was the average, and DragonLasers posted whatever it said on the diode specs.