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Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS HORTICULTURAL Lighting Uniformity in Horticulture A New IES Standard Blooms Lighting Design as a Cross-Disciplinary Science HEALTH Modeling Spherical Irradiance for UV-C Air Disinfection Visible Light Disinfection...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS GENERAL Defining Far-Ultraviolet ARCHITECTURAL Visual Glare and CIE 117-1995 – NEMA White Paper HORTICULTURAL Horticultural Lighting Design and Déjà Vu The Effect of Near-Infrared Radiation on Plants Specifying LED...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS HORTICULTURAL Defining Photosynthetic Photon Efficacy HEALTH Ultraviolet Radiation Terminology Spherical Irradiance and Aerosols Designing an Ultraviolet-C Disinfection System Ultraviolet Disinfection for Consumers...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS GENERAL Rethinking the Photometric Data File Format HORTICULTURAL Far-Red Lighting and Phytochromes Light Transmittance through Greenhouse Glazing HEALTH The Science of Near-Infrared Lighting: Fact or Fiction?...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS ARCHITECTURAL Blue Light Hazards and Television HORTICULTURAL Horticultural Lighting Metrics GENERAL Rethinking the Photometric Data File Format DAYLIGHTING Cerise365 and DAYSIM Read the full annual report...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS ARCHITECTURAL Sports Lighting Regulations HORTICULTURAL Phytochrome and PSS ENTERTAINMENT Controlling Multicolor LED Luminaires DAYLIGHTING Climate-Based Daylight Modelling LIGHT POLLUTION Mobile Light Pollution...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS ARCHITECTURAL The Kruithof Curve Kruithof Revisited HEALTH Entraining Circadian Rhythms Seeing Ultraviolet DAYLIGHTING Solar Illumination LIGHT POLLUTION Light Pollution and Uplight Ratings Color Temperature and...
Ian Ashdown, P. Eng., FIES, Senior Scientist CONTENTS GENERAL INFORMATION Mesopic Photometry and Statistics - April 21 2014 Solid Angles - July 26 2014 In Search of Luminance - Nov 18 2014 ARCHITECTURAL Thoughts on Color Rendering - Jan 5 2014 Giving Light - May 12...
Ian Ashdown, P. Eng., FIES, Senior Scientist, SunTracker Technologies Ltd. Published: 2013/10/08 Topic: Understanding Mesopic Photometry If you are involved with outdoor area or roadway lighting design, you will undoubtedly encounter such terms as mesopic multipliers,...