Chromaticity Cruve for 450/532/405 help

[keeperx]

ok does anyone have any software that can create a chromaticity curve using 405/650/532 as the RGB sources?

[tocket]

I'm not sure what curve you are looking for, but I have written my own Matlab scripts to do color calculations, so I can probably help you. What exactly do you want the curve to illustrate?

Also, what wavelengths? There's some difference between the title and post.

[keeperx]

oh ..sry.. 650/532/405.. i want a real illustration of possible colors

[James Lehman]

405 is well outside of the RGB elements that illuminate your computer display.

All you can get as an incorrect approximation.

James.

[keeperx]

right.. thats what i wanna see..
the incorrect approximation of the chramaticity curve of 405/532/650..

[keeperx]

I think its everything in side this black triangle.. but im not sure exactly how it works.. (james may be able to answer this better)

[James Lehman]

If you have a good balance of energy from your three primary emitters, that's about right.

The only real issue with 405 is that it takes a lot of power to keep up with 532.

James.

[tocket]

Yes, doing the calculations you will see that it's possible to reach any point inside of that triange using the wavelengths available. Keep in mind the colors you see on your display are not accurate outside of a small triangle in the middle. How many big this triangle this is depends on your display and the format of the image, but it is typically this one for web graphics:
http://upload.wikimedia.org/wikipedi...y1931_sRGB.svg

Here are the chromaticity diagrams you're looking for anyway:



I prefer to use the latter u' v' space, as I feel it better depicts the number of colors available in the different areas.

[keeperx]

WOW.. i realy need bluray.. im missing out on SOOOOO many colors...

[tocket]

I might have left out one crucial detail; the little circle close to the white point in that last diagram is a 8:3:9 (R:G:V) mixture. While that in itself doesn't constitute a problem the difference in brightness between the components does. Even though the violet beam is 3 times as powerful as the green, the green laser is over 60 times as luminous (bright). That's going to look weird.