Colour Optics

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Colour Optics

  1. 1. C o l o u r
  2. 2. <ul><li>Additive Colour Theory </li></ul><ul><li>(for LIGHT) </li></ul><ul><li>Subtractive Colour Theory </li></ul><ul><li>(for PIGMENT) </li></ul>C o l o u r
  3. 3. Additive Colour Theory <ul><li>White light is composed of different colours (wavelengths) of light </li></ul>
  4. 4. Additive Colour Theory <ul><li>It is possible to produce white light by combining the three primary colours </li></ul><ul><li>Primary Colours : </li></ul><ul><ul><li>Red </li></ul></ul><ul><ul><li>Green </li></ul></ul><ul><ul><li>Blue </li></ul></ul>
  5. 5. Additive Colour Theory <ul><li>If you mix two primary colours together, you will make a secondary colour </li></ul><ul><li>Secondary Colours : </li></ul><ul><ul><li>Magenta </li></ul></ul><ul><ul><li>Yellow </li></ul></ul><ul><ul><li>Cyan </li></ul></ul>
  6. 9. Subtractive Colour Theory <ul><li>Coloured objects absorb some wavelengths (colours) of light and reflect the rest </li></ul>
  7. 10. Primary & Secondary Colours Additive Subtractive
  8. 11. Subtractive Colour Theory <ul><ul><li>Cyan </li></ul></ul><ul><ul><li>Magenta </li></ul></ul><ul><ul><li>Yellow </li></ul></ul><ul><ul><li>Red </li></ul></ul><ul><ul><li>Green </li></ul></ul><ul><ul><li>Blue </li></ul></ul>Primary Colours: Secondary Colours:
  9. 12. Printer Ink
  10. 22. subtractive Colour Theory P P P S S S

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