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LIGHT AND COLOR SYLLABUS CYNTHIA MARTONE JAMES C. LOPRESTO.

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Presentation on theme: "LIGHT AND COLOR SYLLABUS CYNTHIA MARTONE JAMES C. LOPRESTO."— Presentation transcript:

1 LIGHT AND COLOR SYLLABUS CYNTHIA MARTONE JAMES C. LOPRESTO

2 INTRODUCTION Quiz every Thursday Labs (class exercises) Power Point Presentations (30 minutes) Final Exam (as Scheduled)

3 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)

4 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”

5 Inverse Square Law of Light Light Sources look dimmer the farther away they are Intensity = 1/ (distance) 2 Standard Candles

6 COLOR? Physical Physiological Psychological THE VIVID SOLAR SPECTRUM!!!!

7 LIST OF COLOR BANDS Electromagnetic Radiation GAMMA RAYS X-RAYS ULTRAVIOLET VISIBLE INFRARED MICROWAVE RADIO

8 VISIBLE BAND COLORS VIOLET (INDIGO) BLUE GREEN YELLOW ORANGE RED color blindness?

9 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?

10 COMBINATION OF COLORS (NOT COLORS IN SCIENTIFIC SENSE) pink!!!! brown black white many others!!!!!!

11 COLOR SCIENCE ADDING COLORS SUBTRACTING COLORS COLOR WHEELS COLOR ORGANIZATION AND SCHEMES

12 Wavelength and Frequency Wavelength Frequency Speed of Light c = λ ν = wavelength x frequency sometimes frequency denoted by f

13 WAVES Transverse Waves Water Waves Wave Properties, wavelength, frequency Longitudinal Waves Sound Waves

14 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)

15 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

16 SIMPLE OPTICS Refraction Snell’s Law Lenses Aperture Optical Axis Focal Length Inverted Image Aberrations Spherical Aberration Chromatic Aberration Coma

17 REFRACTING TELESCOPES Eyepieces Famous Examples Speed of Telescope Optics F-ratio

18 REFLECTION Mirrors Aberrations Reflecting Telescopes Famous Examples Various Designs and Foci Adaptive Optics

19 SPECTROSCOPY PRISM DISPERSION GRATINGS SPECTROSCOPES SPECTROGRAPHS Littrow Spectrograph Cyrney-Turner Spectrograph FOURIER SPECTROSCOPY

20 THE HUMAN EYE The Cornea The Pupil The Lens The Retina Near Sighted Far Sighted Astigmatism

21 THE CAMERA Photographic Emulsion Digital Imagery and Cameras Camera Designs Porro Prisms FOCAL LENGTHS F-RATIOS and F-STOPS

22 Other Optical Instruments Magnifying Glass Microscopes Binoculars Periscopes Telephoto Lens Fiber Optics Thin Films Polarizers

23 ELECTROMAGNETIC RADIATION Max Planck and the Photon Wein’s Displacement Law Black Body Radiation (perfect radiators) Radiation Curve for the Sun

24 THE SOLAR SPECTRUM CONTINUUM ABSORPTION LINES EMISSION LINES LINE PROFILES FLASH SPECTRUM WEBSITES for SOLAR SPECTRA

25 INTEFERENCE AND DIFFRACTION INTERFERENCE DIFFRACTION

26 QUANTUM OPTICS ATOMS AND LIGHT ENERGY LEVELS BOHR MODEL OF ATOM NARROW WAVELENGTH BANDS PRODUCED BY ATOMS STIMULATED EMISSION

27 COLORS IN NATURE aurora colors in nature (other than the atmosphere) eclipses planetary nebulae filtered images reflection and flourencent nebulae

28 LASERS Ruby Lasers Helium-Neon Lasers

29 HOLOGRAMS Three dimensional images

30 FOURIER OPTICS INTEROMETERS FOURIER OPTICS


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