ColorMerge Question

Hi Derek,

You can check ou this link for more info:

www.highend.com/support/dichroic_theatre/colormerge.asp

But basically the thing mixes color the same way a moving light w/ CMY does.

There are three sets of glass that can be introduced into the optical path in a gradual manner.

One set removes Red (leaving Cyan), another removes Green (leaving Magenta), and the last removes Blue (leaving Yellow)....Hence CMY color mixing.

I believe the glass is referred to as "dichroic" because it removes one frequency and lets the other two pass through.

Any good lighting book will give you more info on how subtractive color mixing works.

Also since it's glass, the unwanted frequency is reflected. So the glass does not absorb it as heat....whereas a gel does, and that's why gels burn up much more easily (also they are on polyesther instead of glass which doesn't hold up to heat nearly as well.)

Hope this helps you.

Hi Derek,

You can check ou this link for more info:

www.highend.com/support/dichroic_theatre/colormerge.asp

But basically the thing mixes color the same way a moving light w/ CMY does.

There are three sets of glass that can be introduced into the optical path in a gradual manner.

One set removes Red (leaving Cyan), another removes Green (leaving Magenta), and the last removes Blue (leaving Yellow)....Hence CMY color mixing.

I believe the glass is referred to as "dichroic" because it removes one frequency and lets the other two pass through.

Any good lighting book will give you more info on how subtractive color mixing works.

Also since it's glass, the unwanted frequency is reflected. So the glass does not absorb it as heat....whereas a gel does, and that's why gels burn up much more easily (also they are on polyesther instead of glass which doesn't hold up to heat nearly as well.)

Hope this helps you.