Lighting Designer

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Lighting Designer Interview Questions and Answers for Freshers

Updated 26 Apr 2023

Q1. What is maintenance factor?

Ans.

Maintenance factor is the ratio of the illuminance of a lighting system after a certain period of time to its initial illuminance.

  • It is a measure of how well a lighting system maintains its initial illuminance over time.

  • It takes into account factors such as lamp lumen depreciation, dirt accumulation, and maintenance practices.

  • A higher maintenance factor means that the lighting system will maintain its illuminance level for a longer period of time.

  • For example, a lighting syste...read more

Q2. What is IES file

Ans.

IES file is a standardized file format used to describe the distribution of light from a light source.

  • It contains photometric data that describes how light is distributed in space.

  • It is used by lighting designers to simulate and analyze lighting designs.

  • It is also used by manufacturers to provide lighting specifications for their products.

  • It can be opened and viewed using specialized software such as AGi32 or Dialux.

  • It is often provided by lighting manufacturers as a download...read more

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