 THE VISABLE SPECTRUM | NOTES FOR ADDITIVE COLOR MIXING
NOTES FOR SUBTRACTIVE COLOR FILTERING(not to be confused with subtractive color mixing with paint or ink)Color filters may be used in combination to achieve special colors that are not available as a catalog item. The illustration shows what would happen if you were to use a primary red and blue filter in front of a 'white light'. (Fig 1). The red filter blocks the blue and green. The blue filter blocks the blue resulting in a blackout. Some filters will give you more or less light when combined. (fig 2). Using an orange filter which allows red and green to pass in combination with a violet filter which allows red to pass will give you a red color filter. Combining color filters can be useful to create colors not available in your swatchbook. |
|
