 |
Horizontal illuminance
The calculation basis for the degree of illumination of horizontal and almost horizontal surfaces. Such surfaces are for instance, desk surfaces, sheets of paper, keyboards.
|
Cylindrical illuminance
The calculation basis for the degree
of illumination of vertical and almost
vertical surfaces of three-dimensional
objects. This is taken as the yardstick
for the impression of light in the room,
particularly for the illumination of faces.
|
Vertical illuminance
The calculation basis for the degree of
illumination of vertical cupboards and
shelf surfaces.The typical task of vision
in the office area is reading and making
notes on files or books, amongst others
on cupboard and shelf surfaces.
|
2 of 4 
|
