Ian Ashdown is Senior Scientist for SunTracker Technologies Ltd., where he is developing horticultural lighting design software for greenhouses and vertical farms. Having formerly been Senior Scientist for Philips Ledalite, TIR Systems, Cooledge Lighting, and Lighting Analysts, he has some four decades of experience in lighting design, research and development. He currently holds 140 US patents and patent applications, and has written 42 academic papers, 100 technical articles, and the book “Radiosity: A Programmer’s Perspective.” He is an IES fellow, recipient of the 2017 IES Medal, chair of the IES Horticultural Lighting committee, a CIE/CNC Advisory Member, and an active member of the American Society of Agricultural and Biological Engineers (ASABE). He holds a Bachelor’s degree in Electrical Engineering and a Master’s Degree in Computer Science from the University of British Columbia.
Contributions
- The Use of Near-Field Data for Accurate Modeling of Horticultural and Germicidal Applications
- Lighting Uniformity in Horticulture
- Visible Light Disinfection
- Quantifying Light Pollution Sources: The Quintic Root of Hipparchus
- Ultraviolet Radiation Terminology
- Designing a UV-C Germicidal System
- Circadian Lighting: An Engineer’s Perspective
- Melanopic Green The Other Side of Blue
- The Science of Near-Infrared Lighting: Fact or Fiction