Summary: Lighting Technology

Read the summary and the most important questions on Lighting Technology

• 1 Light and Radiation

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• The propagation speed in a medium is dependent on ...

  the refractive index n

• Optical radiation ranges from ...nm to ...nm

  1nm - 1000 nm

• 2 Lighting Quantities and Definitions

• 2.1 Transition from radiometric to photometric quantities

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• Xe; where does the e stand for?

  energy -> indicates that this is a radiometric quantity

• What is the maximal eye sensitivity for photopic and scotopic vision?

  p: 555nm s: 507nm

• What follows an additivity theorem so that the transition from a spectral power distribution of a radiometric quantity follows a function?

  Brightness perception

• 2.2 Photometric quantities

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• A planar angle is formed..

  by two rays originating in the same point called vertex

• A solid angle is formed by ...

  a bundle of rays originating in the same point forming an area

• Luminous intensity (symbol)

  I in candela [cd] = lm/sr -- used to characterize the distribution of a lamp

• 2.4 Additional important terms from Lighting and Physics

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• CIE standard illuminant A

  spectrum is one of a black body radiator with a distribution temperature of 2856 K

• CIE standard illuminant D65

  Spectrum is used for comparison with daylight