3/16/11 Decision Rights • Knowledge key • Problems – knldge not w/ decision maker • Solution – assign decision rights; retrain • Optimizing – 1. decentralization 2. responsibility centers * profit/invest center (control rev cost) * st/rev center (control rev OR cost) • Complexity – initiation, ratification, implementation, monitoring Choose between technolgies: NBE=F1-F2/v2-v1 F1+v1N=F2+v2N L is the part of the EM spectrum ranging fm 380-780 nanom-Between this is which lies between UV radiation & InfrRd R-the only portion that is visible to the human eye.Other parts include microwaves, x-rays,etc. Characteristics: Visible spectrum: ROYGBIV, combined appear as white-Source types: Point, Ra, Line-Illuminance: expression of the quantity of L falling onto an object-Exitance: total quantity of L leaving a surface-Luminance: L leaving a surface at a specific density in a specific direction. a) CCT/correlated color temperature: color that a L source appears to the eye due to an imbalanced spectral output, warmness or coolness of L source, highest temp blue-lowest amber-measured in Kelvin, color temperature has no relationship to the operating temp. b) CRI/color rendering index: complexity or completeness of the spectral output of a L source, highest CRI gives the true color, 100 is the best 1 is worst2) Measurements: A)Illuminance is the amt of L hitting a surface. Measured in Foot c&lesB)C&lepower: intensity of L in a specific direction. Measured in C&elas C) Watts: measure the amt of electricity drawnD) Efficacy: Lumens of L produced per watt of electricityE) Lumens: Measurement of L.F)Lux-SI unit of illuminance=1lumen/sq.meter. Visual Pathway: vertical vision: humans tend to notice wt is in front of them. Phototropism: humans notice bright things over dark things2)Parts of the eye & functions: Cornea: fluid filled bulge at the front of the eye which gathers & focuses the L towards the back of the eyeball. Protects the other eye components & filters out harmful radiation. Iris: carries eye color & acts as a shutter device opening & closing the amt of L let into the eye. 1st system to adapt to different L levels. Pupil: aperture the iris creates. Changes in size based on the amt of L the iris lets in. Lens:
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This note was uploaded on 03/15/2011 for the course BLAW 3201 taught by Professor Fry during the Spring '08 term at LSU.