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Latest News
Thoughts on Color Rendering
Lamp with a CRI of 90 or above, good. Lamp with a CRI of less than 80, bad. Is there anything else that lighting designers need to know about the Color Rendering Index (CRI) metric? To be brutally honest … no. Despite all that has been written on the topic over the...
Ian Ashdown’s podcast with ‘Get a Grip On Lighting’ – It’s Just a Hobby
Ian Ashdown is a SunTrackers's Senior Scientist and a consultant with over forty years’ experience in lighting design, research and development, and software engineering (He built the original version of AGI32). He holds more than 160 patents and patents pending....
An Interview with Optics & Photonics News: Ian Ashdown on Fostering Creativity
In this installment of Senior Member Insights, OPN talks with Ian Ashdown, senior scientist and president of SunTracker Technologies in Victoria, BC, Canada. He and his team develop lighting-design software for architectural, horticultural, entertainment and health...
SunTracker Technologies Free to use DLI Calculator IS NOW LIVE!
https://www.youtube.com/watch?v=qewhmzRJITU SunTracker Technologies Ltd. is excited to release the newest version of our free DLI Calculator with a new Global feature on June 1, 2021. Users will be able to visualize the DLI values on the interactive map with...
DIFFUSED FIBRE-OPTIC HORTICULTURAL LIGHTING
https://patents.google.com/patent/US10966376B2/en Published #: US10966376B2 Issue Date: 06-Apr-21 Abstract: Laser light emanates from optical components that are mounted on a substrate, each optical component being coupled to an...
Cerise 365 and DAYSIM
Cerise365™ and DAYSIM are daylighting analysis software programs that perform climate-based annual daylight simulations, including the calculation of annual daylight metrics. This white paper compares their performance in terms of accuracy and calculation times....
Specifying LED Colors for Horticultural Lighting
When the first high-pressure sodium (HPS) lamps were introduced in the late 1960s, they were quickly adopted by commercial greenhouse operators as a means of providing supplemental electric lighting. This made it economically possible to grow vegetables and flowers...
Filtered LEDs and Light Pollution
The problem is astronomical — the blue light emitted by LED roadway luminaires has been shown to contribute to light pollution, especially when cool white LEDs are used.
Cerise365+GreenHouseDesigner™ Wins 2023 AE50 Award
St. Joseph, Michigan. – The American Society of Agricultural and Biological Engineers (ASABE) has named Cerise365+GreenHouseDesigner™ winner of a 2023 AE50 award. AE50 awards honor the year’s most innovative designs in engineering products or systems for the food and...
In Memory of Ian Ashdown
With intense sorrow, we announce the passing of our beloved friend, Ian Ashdown, PEng (Ret), FIES, Senior Scientist and co-founder of SunTracker Technologies Ltd.
Ian’s profound passion and dedication to lighting, unwavering commitment to scientific integrity, and remarkable expertise have left an indelible mark throughout his extraordinary career spanning over four decades. His contributions encompassed a wide range of academic articles, lighting standards, and software developments.
Beyond his renowned reputation as an engineer and scientist in the lighting field and beyond, Ian possessed a remarkable spirit of compassion. He selflessly assisted numerous individuals personally and professionally throughout their journeys.
Ian’s departure has left an immeasurable void; we deeply feel his absence. However, SunTracker Technologies remains unwavering in its dedication to preserving and advancing Ian’s exceptional legacy within the lighting community and beyond.