Eye&Vision [Compatibility Mode]

Eye&Vision [Compatibility Mode] - Light, eyes, and...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Light eyes and vision Light, eyes, and vision Plato’s Explanation of Vision Light What is Light? The (humanly) visible portion of the electromagnetic wave (360-780 nanometers in wavelength)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Light behaviors both like waves and particles (photons) ± Light as waves is important for understanding color perception ± Light as particles is important for understanding sensitivity and perceived brightnes and perceived brightness The “fates” of light Medium 1 Refraction Absorption Reflection Medium 2 Light carries information about objects Objects that emit light – The sun, lights, and florescent (self-illuminant) surfaces O b jtt h tf lt l ih
Background image of page 2
3 An illusion caused by refraction Human Eye Important structures: Cornea, iris , pupil, lens, retina (including fovea and peripheral retina), blind spot, optic nerve Retinal image Pupil • The dilation and constriction of the pupil is both externally (light intensity) and internally (emotion and interest) controlled
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Cornea and lens Accommodation: Focusing on an object at a distance by changing the shape of the lens Cornea and lens serve to focus an object image on the retina Cornea provides 80% of the focusing power Structures of rods and cones Receptors for human vision Schematic Electromicroscopic Distributions of rods and cones in the retina Receptors for human vision cone rods cones Peripheral retina Fovea
Background image of page 4
5 Receptors for Human Vision Distribution of rods and cones on the retina Blind spots and the perceptual filling-in of the blind spots Demos Receptors for Human Vision
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

Eye&Vision [Compatibility Mode] - Light, eyes, and...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online