Cerise365 and DAYSIM

Cerise365 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

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

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. Blue light is preferentially scattered by air molecules, and so the higher the correlated color...

Ultraviolet Radiation Terminology

Ultraviolet Radiation Terminology

In Ultraviolet Radiation Terminology, SunTracker Technologies' Senior Scientist, Ian Ashdown dares to get pedantic about how we describe ultraviolet radiation. Do the terms we use really mean what we think they mean? Could we be describing them more accurately?...

UBC Computer Science Presentation.

UBC Computer Science Presentation.

We are proud of Ian Ashdown, our Senior Scientist, for sharing the wealth of knowledge he has with the University of British Columbia Computer Science students. SunTracker believes it is important to share knowledge and mentor young minds contributing to a brighter...

ANOTHER NEW PATENT (US10,952,302,B2) ISSUED TO SUNTRACKER

ANOTHER NEW PATENT (US10,952,302,B2) ISSUED TO SUNTRACKER

https://patents.google.com/patent/US10952302B2/en SunTracker is proud to announce that on 16 March 2021, the USPTO issued patent US10,952,302,B2 "SYSTEM AND METHOD FOR THE OPTIMIZATION OF RADIANCE MODELLING AND CONTROLS IN PREDICTIVE DAYLIGHT HARVESTING" to SunTracker...

University of Victoria Scholarship announcement

University of Victoria Scholarship announcement

In celebration of International Woman’s Day, SunTracker congratulates Rebecca Thomson for receiving our 2020 Scholarship! Congratulations Rebecca!! We wish you the greatest success with your studies and your future! We are very happy we were able to assist you!...

Greenhouses and Light Pollution

Greenhouses and Light Pollution

Supplemental electric lighting for greenhouses may be essential for extending the growing season in northern climates, but it comes with a not-so-hidden cost: environmental light pollution. The consequences of this pollution may range from irate neighbours in rural...

Going Green – Lighting Designing for Horticulture

SunTracker Technologies Senior Scientist, Ian Ashdown, will be presenting at the upcoming IES Toronto Section on Feb 17, 2021 “Going Green – Lighting Designing for Horticulture” Synopsis Ian Ashdown, P. Eng. (Ret.), FIES The future of food security in Canada is in...

Ian Ashdown Guest Lectures at Carnegie Mellon University

Ian Ashdown, SunTracker’s Senior Scientist is honoured to be a guest lecturer on February 24, 2021 at Carnegie Mellon University. This course is funded by Illuminating Engineering Society. ies.org/lda/the-nuckolls-fund-distributes-230000/ Nuckolls Fund Grants: 20,000...

Viral Misinformation

SunTracker Technologies Senior Scientist Ian Ashdown's article “Viral Misinformation”, has been featured on Inside Lighting Let’s Address Some Viral Misinformation False claims about UV-C seep into mainstream media....

Spherical Irradiance and Aerosols

Spherical Irradiance and Aerosols

Lighting designers will be familiar with the illuminance of a planar surface, which is measured in lumens per square meter (or foot). The irradiance of a planar surface by a germicidal radiation source is conceptually the same, except that it is measured in watts per...

Designing an Ultraviolet-C Disinfection System

Designing an Ultraviolet-C Disinfection System

There is a newcomer on the block that has gained considerable media attention: far-ultraviolet excimer lamps. Recent medical studies have indicated that, unlike 254 nm radiation, the 207 nm and 222-nm “far-UV” radiation emitted by excimer lamps is likely harmless...

COVID-19 – A Message from SunTracker

The novel Coronavirus COVID-19, the associated health of friends and family is at the forefront of everyone’s thoughts at this time. We are taking efforts to protect our clients, research partners, and our team. Our goal is to ensure a healthy environment for all. As such, our team will continue to work remotely to serve our clients and research partners virtually, and we will continue to operate online and through other media. Technical support will be unchanged as we adopt to the realities of increased self isolation and potential quarantine. You may continue to contact us through email and telephone, and we will respond accordingly.

If you have questions please contact our VP Communications and Marketing:

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SunTracker’s Senior Scientist, Ian Ashdown’s

Blog Website: AllThingsLighting.org