In the world of lighting and energy efficiency, a groundbreaking study led by Hamed Karimi-Pour, from the Faculty of Polymer and Paint Engineering at Amir Kabir University of Technology, has shed new light on the complex relationship between brightness and luminance. The research, published in Studies in the World of Color, delves into the phenomenon of “tertishundi,” a term that describes how our perception of brightness changes when the background lighting is altered.
Imagine walking into a dimly lit room and then turning on a bright light. The transition is stark, and our eyes take time to adjust. Now, consider the implications of this for the energy sector. As Karimi-Pour explains, “The relationship between brightness and luminance is not linear; it’s a complex interplay that can significantly impact energy consumption in both residential and commercial settings.”
The study explores two primary models that describe this relationship: the logarithmic model and the power model. Both models have been tested against empirical data and have shown promising results. However, the logarithmic model, which assumes equal steps in visual perception across different levels of brightness, seems to hold more mathematical validity. This is where the concept of tertishundi comes into play. When the brightness of an object closely matches the brightness of the background, our visual system becomes more sensitive to changes in brightness. This phenomenon can have profound implications for lighting design and energy efficiency.
Karimi-Pour’s research highlights the importance of considering background lighting in the design of energy-efficient systems. By understanding how tertishundi affects our perception, engineers and designers can create more effective lighting solutions that consume less energy. For instance, in commercial settings like offices or retail spaces, optimizing background lighting can reduce the need for excessive artificial light, leading to significant energy savings.
The study also introduces the Whitlaw relationship, a logarithmic function that accounts for tertishundi and other factors influencing brightness and luminance. This model has shown superiority over other logarithmic relationships, but its comparison with power models, including the L model, remains inconclusive. The ongoing debate between these models underscores the need for further research in this area.
As we move towards a more energy-conscious future, understanding the nuances of brightness and luminance can lead to innovative solutions. Karimi-Pour’s work is a step in the right direction, offering insights that could shape the development of next-generation lighting technologies. By integrating these findings, the energy sector can develop more sustainable and efficient lighting systems, reducing costs and environmental impact.
The implications of this research extend beyond the immediate applications in lighting design. As we strive for net-zero emissions and sustainable energy practices, every small improvement in efficiency counts. The study published in Studies in the World of Color (translated from ‘مطالعات در دنیای رنگ’) provides a solid foundation for future developments in this field, encouraging further exploration and innovation.
