Presentation on theme: "LIGHT AND COLOR SYLLABUS CYNTHIA MARTONE JAMES C. LOPRESTO."— Presentation transcript:
LIGHT AND COLOR SYLLABUS CYNTHIA MARTONE JAMES C. LOPRESTO
INTRODUCTION Quiz every Thursday Labs (class exercises) Power Point Presentations (30 minutes) Final Exam (as Scheduled)
POWER POINT TOPICS Telescopes Cameras Lasers Holograms Stimulated Emission The Interferometer Color Science Microscopes Black Body Radiation The Green Flash Rainbows, Halos and Sundogs Total Internal Reflection The Solar Spectrum The Pinhole Camera The Human Eye Corrective Procedures for Improving Eyesight (Glasses, contacts, sunglasses, surgical corrections)
Introduction to Subject Matter LIGHT (Packet of Energy, photon) FOUR FORCES IN NATURE (Strong Nuclear – gluon, Electromagnetic – photon, Weak Nuclear – Intermediate Vector Bosons, Gravity – Graviton (gravity waves) LIGHT (wave and “massless particle”
Inverse Square Law of Light Light Sources look dimmer the farther away they are Intensity = 1/ (distance) 2 Standard Candles
COLOR? Physical Physiological Psychological THE VIVID SOLAR SPECTRUM!!!!
LIST OF COLOR BANDS Electromagnetic Radiation GAMMA RAYS X-RAYS ULTRAVIOLET VISIBLE INFRARED MICROWAVE RADIO
VISIBLE BAND COLORS VIOLET (INDIGO) BLUE GREEN YELLOW ORANGE RED color blindness?
NATURAL WORLD EMITS ALL WAVELENGTHS Effects of Light on Humans (radiation) Gamma Rays (deadly) X-Rays(deadly) UV (suntan, sunburn) IR ( skin can detect IR) Microwaves and Radio Waves Long Term exposure, Cell phones and Power Lines?
COMBINATION OF COLORS (NOT COLORS IN SCIENTIFIC SENSE) pink!!!! brown black white many others!!!!!!
COLOR SCIENCE ADDING COLORS SUBTRACTING COLORS COLOR WHEELS COLOR ORGANIZATION AND SCHEMES
Wavelength and Frequency Wavelength Frequency Speed of Light c = λ ν = wavelength x frequency sometimes frequency denoted by f
WAVES Transverse Waves Water Waves Wave Properties, wavelength, frequency Longitudinal Waves Sound Waves
Maxwell Equations of Electromagnetic Theory Maxwell’s Equations Spatial variation of the electric field is equal to the temperal variation of the magnetic field. Spactial variation of the magnetic field is equal to the temperal variation of the electric field The divergence of the magnetic field is zero (no magnetic poles) The divergence of the electric field is 4πρ (there are electric charges)
Maxwell’s Equations Maxwell's Equations I. Gauss' law for electricity II. Gauss' law for magnetism III. Faraday's law of induction IV. Ampere's lawGauss' law for electricityGauss' law for magnetismFaraday's law of inductionAmpere's law