Authors:
Bista D.1,2, Bista A.1,2, Bhusal P.3,4, Chhetri B.B.1
1 Department of Electrical and Electronic Engineering, Kathmandu University, 45200 Dhulikhel, Nepal.
2 Center for Electric Power Engineering (CEPE), Kathmandu University, 45200 Dhulikhel, Nepal.
3 Department of Electrical Engineering and Automation, Aalto University, FI-00076 Aalto, Finland.
4 Department of Optometry, Radiography and Lighting Design, University of South-Eastern Norway, 3616 Kongsberg, Norway.
Abstract
Various architecturally and culturally rich heritage sites are in the Himalayan country Nepal. Nepalese heritage sites have various special building and these special buildings require a special light source. Tuning the RGB spectrum of LED light to optimum spectrum for the heritage sites of Nepal not only saves significant power but also makes the art of historic places aesthetically pleasing. The research commenced with the design of light sources of different SPD and CCT. This was achieved by balancing the Red, Green and Blue component of light source. Materials used in the construction of Nepalese heritage site were collected from Bhaktapur Durbar Square (a 15th century old palace listed in UNESCO World Heritage Site). These materials were illuminated with different types of light sources (CCT of 1500K to 7000K). A recommendation of light sources based on findings is also presented in this study.
Keywords: Spectral Reflectance, Correlated Colour Temperature, Heritage lighting
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Conference CIE 2021, September 27-29, 2021 |
| Publisher | CIE International Commission on Illumination |
| Number of pages | 11 |
| ISBN (Electronic) | 9783902842299 |
| Publication status | Published – 2021 |
| MoE publication type | A4 Article in a conference publication |
| Event | CIE Midterm Meeting – Kuala Lumpur, Malaysia Duration: 27 Sep 2021 → 29 Sep 2021 https://malaysia2021.cie.co.at/welcome-cie-2021 |
Conference
| Conference | CIE Midterm Meeting |
|---|---|
| Abbreviated title | CIE |
| Country/Territory | Malaysia |
| City | Kuala Lumpur |
| Period | 27/09/2021 → 29/09/2021 |
| Internet address |
Cite this:
Bista, D., Bista, A., Bhusal, P., & Chhetri, B. B. (2021). Optimum Spectrum of LED lighting for cultural and heritage site: a case study of 15th century world heritage site in Nepal. In Proceedings of the Conference CIE 2021, September 27-29, 2021 CIE International Commission on Illumination. https://doi.org/10.25039/x48.2021.PO05
