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M E A S U R I N G   L I G H T (continued)

10. Key Word Index (M...R)
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In the text of the paragraphs, all keywords are enhanced by using KAPITAL LETTERS.

In the index, all items are sorted "naturally": don't search for "photometer, bunsen", but for "bunsen photometer".


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key word short description paragraph + hyperlink
M symbol for the quantity 'luminous exitance' 5.2.1 Luminous Exitance  M
M symbol for the quantity 'radiant exitance' 4.2.1 Radiant Exitance  M
measurement comparison with standardized value 2. Introduction
monochromatism to contain just one wavelength 7.1 Monochromatism (of Laser Radiation)
monochromator sifting a selectable narrow band out of broad-band radiation 4.4.2 Instruments (for spectral. resolv. meas.)
multiplexing scheme method for applying many radiometers to one task 4.4.2 Instruments (for spectral. resolv. meas.)
narrow-band here: flat detector response within narrow spectral limits 4.0 Radiometry/General
near field in distance very short compared to area size at area source 6.3 Area Source and Distance
near field in distance very short compared to lamp length at line source 6.2 Line Source and Distance
near field in distance very short compared to source size 6.4 Distance and Illuminance: Overview
Newtonmeter SI unit for (radiant) energy 4.1.2 Radiant Energy  Q
Nit seldom used unit name for Luminance  L ;
= 1 cd/m^2
table 8.1 in
8. Comparison Tables
normal direction line perpendicular to surface / ray perpendicular to aperture 4.1.1 Radiant Flux  (Phi)
nt Nit, seldom used unit for Luminance  L ;
= 1 cd/m^2
table 8.1 in
8. Comparison Tables
numerical integration deriving area under curve 4.4.3 Applying Spectral Resolution
numerical integration deriving area under curve 4.4.3-Example
obsolete units units that should not be used any more 1. Goals of this Essay
obsolete units no more in use but sometimes necessary to understand table 8.2.1 in
8. Comparison Tables
opaque sheet sheet with but one narrow aperture 4.2.4 Radiance  L
order sort discerning the diffraction orders that a grating produces 4.4.2 Instruments (for spectral. resolv. meas.)
overfilled aperture bundle cross-sectional figure bigger than detector aperture 4.2.3 Radiant Intensity  I
overfilled aperture bundle cross-sectional figure bigger than detector aperture 4.2.4 Radiance  L
overfilled aperture bundle cross-sectional figure bigger than detector aperture 4.3.1 Irradiance  E
overfilled aperture bundle cross-sectional figure bigger than detector aperture 4.3.2 Radiant Exposure  H
overfilled aperture bundle cross-sectional figure bigger than detector aperture 5.3.2 Exposure  H
ph Phot, obsolete unit for Illuminance  E ;
= 10^4 lx
table 8.2.2 in
8. Comparison Tables
phase relation e.g. constant phase difference between two rays 7.2 Coherence (of Laser Radiation)
Phot obsolete unit for Illuminance  E ;
= 10^4 lx
table 8.2.2 in
8. Comparison Tables
photograpy wet-chemical image recording 4.3.2 Radiant Exposure  H
photograpy wet-chemical image recording 5.3.2 Exposure  H
photometry measuring light intensity with receivers that emulate human eyes 5.0 Photometry, General
photometry measuring radiated energy as weighted by the eye 4.0 Radiometry/General
photon quantum of electromagnetic energy 3. What is Light
photopic vision eye performance at several cd/m^2 or more; cone vision 4.4.3-Example
pixelized camera image transducer using descrete image points 4.2.1 Radiant Exitance  M
pixelized camera image transducer using descrete image points 4.2.3 Radiant Intensity  I
plane angle rotational distance between two lines in their common plane 4.2.2 Solid Angle  (Omega)
point source source so far away that size is no more discernible 4.2.3 Radiant Intensity  I
point source source so far away that size is no more discernible 6.1 Point Source and Distance
polarization effects effect of light polarization on spectroradiometer reading 4.4.2 Instruments (for spectral. resolv. meas.)
polychromator dispersing white light into its component colors 4.4.2 Instruments (for spectral. resolv. meas.)
power work divided by time; especially electromagnetically radiated 4.0 Radiometry/General
power work divided by time; especially electromagnetically radiated 4.1.1 Radiant Flux  (Phi)
power per solid angle = radiant intensity  I 4.2.3 Radiant Intensity  I
prism optical device that disperses per wavelength-dependent refraction 4.4.2 Instruments (for spectral. resolv. meas.)
product curve result of weighting one curve with another one 4.4.3-Example
pseudo-unit mathematically indentical with  "1" 4.2.2 Solid Angle  (Omega)
Q symbol for the quantity 'Quantity of Light' 5.1.2 Quantity of Light  Q
Q symbol for the quantity '(radiant) energy' 4.1.2 Radiant Energy  Q
quantity definition equation that relates a quantity to base quantities; all listed in: 8. Comparison Tables
quantity name word that identifies a quantity; all names listed in: 8. Comparison Tables
quantity of light lumious flux times time 5.1.2 Quantity of Light Q
quantity symbol symbol that identifies a quantity; all symbols listed in: 8. Comparison Tables
quantum, quanta smallest possible amount of energy 3. What is Light
rad radian, pseudo-unit for plane angle  (alpha) 4.2.2 Solid Angle  (Omega)
radian pseudo-unit for plane angle  (alpha) 4.2.2 Solid Angle  (Omega)
radiance radiant intensity per unit emitting area 4.2.4 Radiance  L
radiant emittance other name for "radiant exitance  M" 4.2.1 Radiant Exitance  M
radiant energy Q radiant flux integrated over time 4.1.2 Radiant Energy  Q
radiant exitance  M radiant flux per unit emitting area 4.2.1 Radiant Exitance  M
Radiant Exposure  H radiant flux times time per unit receiving area 4.3.2 Radiant Exposure  H
radiant incidance = Irradiance  E 4.3.1 Irradiance  E
radiant intensity  I radiant flux per unit solid angle;
unit  W / sr
4.2.3 Radiant Intensity  I
radiant irradiance = Irradiance  E 4.3.1 Irradiance  E
radiometer instrument for radiometric measurements 4.1.1 Radiant Flux  (Phi)
radiometric-to-photometric factor, converting integral values (watt to lumen) 4.4.3-Example
radiometry measuring radiated electromagnetic energy 4.0 Radiometry/General
reasonably big distance equal solid angles from every point of source to detector aperture 4.2.4 Radiance  L
received flux (luminous) flux that hits the light sink 5.3.1 Illuminance  E
received flux (radiant) flux that hits the radiation sink 4.3.1 Irradiance  E
rotation angular movement 4.2.2 Solid Angle  (Omega)
row of point sources constituting a line source model 6.2 Line Source and Distance




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