RTV-3001 Lecture Notes - Lecture 4: Houndstooth, Electromagnetic Spectrum, Subtractive Color
Document Summary
Opaque objects reflect whatever color they appear to be and absorb all other colors. Prism or rain divides white light or sunlight into rainbow colors or spectral colors. The color of the rainbow are spectral colors, falling into the visible electromagnetic spectrum. Translucent materials and liquids that appear colored do not reflect light but transmit certain wavelengths. When light is applied the material only allows a certain color to spill through. To create colored light, color filters called gels are used. The gel subtracts from the white light of the bulb all colors except the color of the gel. Filters can also be used on the camera to tint that overall color of your movie or show. Eye receives light of a certain wavelength or mixture of wavelengths which it transmitted and interpreted by the brain as a color sensation. Lens of the eye focuses light on the light sensitive cells of the retina (cones and rods.
