1 / 14

Understanding Color Vision: The Human Eye and Communication Process

Learn how light enters the eyes, pigment influences color perception, and common vision problems such as color deficiency. Explore the impact of color in web design for effective communication.

moorman
Download Presentation

Understanding Color Vision: The Human Eye and Communication Process

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Vision Part 2 LESSON Ext 3 Module 3: Designing for Communication

  2. Lesson Overview • How does the human body process communication? • In this lesson, you will learn: • What happens to light as it enters the eyes • What problems can arise with color vision

  3. Guiding Questions What makes a certain wavelength bounce off an object? What makes grass green? What makes blood red?

  4. Pigment Pigment is the material that changes the light through selective absorption to give an object its color. Photopigments in the eye help the cones to process the light.

  5. Focus • Light traveling through the eye is • Bent • Refracted • Focused • Define Refraction

  6. Refraction Water glass demo

  7. Focused? Fluid in the eye is like the water in the glass Bending, refracting, and focusing flip the image upside down Optic nerve creates electrical impulses that are transmitted to the brain

  8. Optional Activity Activity with concave and convex lenses Magnifying glass activity Simulated Optics Experiment

  9. Vision Problems Short-sightedness (myopia) Long-sightedness (hypermetropia) Astigmatism Presbyopia Color sensitivity

  10. Color Deficiency Also known as color-blindness Unable to detect a certain color or a set of colors Inherited Caused by a gene with the wrong code Light is shifted causing another color to be seen More common in males

  11. Classifications of Color-blindness • Trichromacy • Dichromacy • Protanopia • Deutanopia • Tritanopia • Monochromacy

  12. What is it like to be color-blind? • Take a color-blindness test: • http://colorvisiontesting.com/ishihara.htm • http://colorvisiontesting.com/online%20test.htm • What color deficient people see: • http://colorvisiontesting.com/what%20colorblind%20people%20see.htm • Web design and color deficiency: • http://www.iamcal.com/toys/colors

  13. Assignment • Use this Web site to choose colors that you think would be best suited for the background of a Web site and a text color. • Write a short justification of your choices. • Web design and color deficiency: • http://www.iamcal.com/toys/colors

  14. Lesson Review • How does the human body process communication? • What happens to light as it enters the eyes? • What problems can arise with color vision?

More Related