Colored Objects Date _________ Color exists only in our minds. What we call color in pigments and dyes are what frequencies are reflected. These are the waves that DON'T fit in the dye or pigment molecule. The waves that fit are _____________ and converted into ____________ energy. Pigments are tiny solid molecules that produce color by selectively absorbing or transmitting light depending on their ____________________. A blue pigment is a chemical that absorbs ________ and ________ light (__________ ) and reflects blue light. 1 An object can only reflect colors that are present in the illuminating light!!!1 A red object looks red because us absorbs it complementary colored light ________________ which is made up of ________ and _______ light. A red object only reflects __________ light. In red light a red object looks red because there is red light to reflect. In green light a red object looks __________ because _________________________________. Incoming light Pigments Reflected color 2 The subtractive primary colors are ____________, ____________, and __________. By combining these colors in different intensities any color in the spectrum can be produced. The mixture of these pigments results in the subtraction of colored light. What we see is the light left over after some light has been absorbed. http://mysite.verizon.net/vzeoacw1/colorsub.html 3 Cyan pigment is made of particles that absorb red light (its complementary light color) and reflects what is left over, blue and green light. This looks like cyan to our eyes In the same way, yellow pigment absorbs _________ and reflects ___________ and _________ which looks ___________. Magenta pigment absorbs __________ and reflects _________ and __________ which looks ____________. 4 The object below has a mixture of magenta and cyan pigments. Explain why blue light is reflected. Incoming light Pigments Reflected color 5 Color Subtraction Practice Incoming light Pigments White Magenta Magenta Yellow Reflected color 6 How would this object look in blue light? Explain Incoming light Pigments Reflected color Red Green 7 Using only yellow, magenta, and cyan pigments, how would you print the red part of the apple in a newspaper? In order to have reflected ______ light you must subtract out ____________ and ___________ light. Incoming light Pigments Reflected light White Red 8
© Copyright 2025 Paperzz