Seeking Online Additive Color Calculator

• Feb 28, 2017

• #1

Alaskan

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Has anyone seen an online additive color calculator? I need one for light. I found Osram offers a free LED color calculator, but it won't run on my Apple OS version. Can anyone do me a favor and run this program for me:

https://www.osram-americas.com/en-us/tools-and-resources/Pages/led-color-calculator.aspx

What I need to know is what shade of color 1.5 watts of 660nm, 1 watt 561nm and 5 watts of 532nm produce when combined.

 

• Feb 28, 2017

• #2

CurtisOliver

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I downloaded the program for you, but it doesn't allow an addition of two green bands, 532 and 561. Green is between 513 and 570nm. I am also getting to grips of the program, but it does seem to be lessening the extent of the green.

 

• Feb 28, 2017

• #3

Alaskan

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OK, thank you for trying my friend. I just wanted to get an idea of the shade of color the eye laser I have would produce if all three lasers were on at the same time.

A higher resolution photo of the Novus Varia Tri-Color ND:YAG Laser

 

Last edited: Mar 1, 2017

• Feb 28, 2017

• #4

diachi

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You want a copy of "Chroma", although I'm not sure if it runs on Mac? Anyone? I have a copy of it somewhere, but in a .exe format I think.

 

• Feb 28, 2017

• #5

CurtisOliver

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You're welcome Alaskan. I was looking for Chroma not so long ago. If anyone has a copy, please share.

 

Last edited: Feb 28, 2017

• Feb 28, 2017

• #6

diachi

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CurtisOliver said:

You're welcome Alaskan. I was looking for Chroma not so long ago. If anyone has a copy, please share.

Click to expand...

I should still have a copy of it somewhere, I'll need to check later tonight. I had it installed on one of my VMs, which was on a host that had a drive failure, hopefully I copied it onto the file server before that happened...

 

• Mar 1, 2017

• #7

CurtisOliver

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If you do that will be brilliant. :beer:

 

• Mar 1, 2017

• #8

Alaskan

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I'd like to see the result of three colors added together, don't know if these programs allow that many to be calculated together.

 

• Mar 1, 2017

• #9

CurtisOliver

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I did try making my own using Excel, but it is very difficult getting the accuracy right with three whilst capping out at 255. I'll have to give it another go sometime.

 

• May 22, 2017

• #10

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cccc

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If you want more than 1 green in the Osram color calculator do the following:

1) set the wavelength and intensity of the green.
2) press the "Calculate" button.
3) use the "User Spectra->save as a user spectrum..." menu item so save this spectrum. It will appear under the standard LEDs included.

Now you can include this is any other LED/spectra.

There is also a command to create several spectra at a time. see the "User Spectra->Generate user spectrum from pure color LEDs or gaussians..." menu item.

 

• May 22, 2017

• #11

CurtisOliver

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Welcome to the forum 4c's.
Thanks for the advice. I'll check this out when I can.

Edit:
Well I followed cccc's advice and as you probably was aware Alaskan. I got a lovely green from 5W 532, 1W 561 and 1.5W 660nm.

 

Last edited: May 22, 2017

• May 22, 2017

• #12

Radim

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Very nice calculator. I have something like this in excel, what I wrote, but this is definitely much more advanced. I would rep you, if I could.

 

Last edited: May 22, 2017

• May 22, 2017

• #13

CurtisOliver

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Check out Alaskans OP and you can download the calculator. It is pretty sophisticated.

 

• May 22, 2017

• #14

Radim

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I'll do when I'm on my laptop. What about Android app? I would use it for laserpainting. I often solve this problem...

 

• May 22, 2017

• #15

CurtisOliver

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It doesn't have an android version unfortunately. But on your laptop it will work well.

 

• May 22, 2017

• #16

Radim

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Yes, I checked it already... If I have more time I would write an app for myself, still I wanted to write Android app for my Evo laser as this from WL is not working, I just need to change sample rate in protocol communicating with the laser to make it work with my phone. Unfortunately I did not discovered uncompiled version of their app, so I need to write it from scratch what takes time as I need to go through needed syntax of Android Studio and SDK tools.

 

Last edited: May 22, 2017