Introduction to Illumination Engineering

Introduction to Illumination Engineering

Points raised
Need for good illumination
radiation and colour
eye and visions
laws of illumination
different entities of illumination system,
lights sources
luminaries
environment and glare
If you can not measure it, you can not improve it
When you can measure what you are speaking about, and express it in numbers
Illumination design
interior lighting
Exterior lighting
functionality - security purposes.
Different type of loads and individual protection
take precautions for fire
emergency supplies
uses of illumination engineering in other areas of science and life
Physiology and psychology play a part in illumination engineering
people depend on light
activities was restrictiveness to sunset and sunrise
Artificial light increases this
visions acquires 80% of info
Artificial light
Sunlight - moon light
Artificial light should be functional, pleasant
different light needed for different purposes
Physiology is the science of the functioning of living systems.
characteristic of or promoting normal, or healthy, functioning
sources may need to be multiple they need to be economic, energy efficient,
how is electricity supplied.
Is it ac or dc
any current flow requires closed circuit,
losses exist in power lines,
reduce losses
i2r
i is line current
r is line resistance
longer line higher resistance
power stations are far from load centres
losses minimized by supplying higher voltages
electric current dc or ac
isle of man mansions