PS_light_optics - The geometry associated with viewing a...

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1 The geometry associated with viewing a surface: angle of incidence (i), angle of emittance (e), phase angle (g), with respect to surface normal (N). (The “normal” refers to the direction that is perpendicular to the surface.)
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2 The wave nature of light. Light (like sound) can differ in its wavelength, phase and amplitude.
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3 The range of visible wavelengths of light out of the entire electromagnetic spectrum.
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4 Examples of daylight radiant power spectra normalized at 550 nm. The curves are labeled by the color temperature (the temperature of a black body radiator that would produce approximately the same power spectrum).
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5 Reflectance spectra of some natural materials. From Krinov (1947).
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6 Typical sequence of photons emitted from a low intensity light source.
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7 Photons and the Randomness of Light Energy of a photon: Jc h λ = Photon inter-arrival time: [] 1 t PW t e γ ≤=− Number of photons in a fixed time interval: () 0,1,2, !
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This note was uploaded on 08/12/2008 for the course PSY 323P taught by Professor Geisler during the Spring '08 term at University of Texas at Austin.

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PS_light_optics - The geometry associated with viewing a...

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