In which of the following lighting schemes is 90% to 100% of total light flux thrown upward to the ceiling for diffused reflection?

In which of the following lighting schemes is 90% to 100% of total light flux thrown upward to the ceiling for diffused reflection?

Right Answer is:

Indirect lighting

SOLUTION

Indirect lighting Scheme:

  • In this light scheme, more than 90 percent of total light flux is thrown upwards to the ceiling for diffuse re­flection by using inverted or bowl reflectors.
  • In this scheme, the ceiling acts as the lighting source, and glare is reduced to a minimum.
  • It produces shadowless illumination, which is very useful for drawing offices and in workshops where large machines and other difficulties would cause troublesome shadows if direct lighting schemes were used.
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