Mohammad Mehdi Mehran - Assistant Professor of Department of Architecture, Rafsanjan Branch, Islamic AzadUniversity, Rafsanjan, Iran
Fatemeh Karimi Zand - Master student of Department of Architecture, Rafsanjan Branch, Islamic Azad University, Rafsanjan, Iran

New Iranian architecture, especially in the residential, educational, office, etc. sectors, there is an urgent need for they provide lighting but are completely dependent on artificial lighting and practically use Natural light, which is the most rational, economical and healthiest type of lighting during daylight hours has been forgotten. The correct understanding of the role of natural light in past architecture, It is a step to link the role of natural light to today's architecture. The purpose of this article this is to show the use of natural light and its control tools in design the interior of Iranian architecture had a great impact on the quality of life of the people of that time. This research is done by case analysis method and through the study of previous researches in the background of light is done in architecture. Elements defined in this research in Kashan Tabatabai houses have been studied and their role in quality People's lives have been examined. According to the results, in addition to light, other factors including the interior details of the rooms, sash, good view, etc. affect the quality of life of people.

House, Light, Traditional Iranian Architecture, Aesthetics, Tabatabai House