Sponsored By: Keystone
With Jennifer Veitch
10/15/18 – Lighting Episode 47(Full Version) – Jennifer Veitch 104:42
Today, we draw a fine line between the facts and myths of lighting’s effect on our behavior and health. It’s time to tell the consumers what’s true and what’s not.
Joining Michael and Greg in this episode of the Get A Grip On Lighting Podcast is Dr. Jennifer Veitch, the Principal Research Officer at National Research Council of Canada. Dr. Veitch has long been doing research studies about lighting’s impact on health – what are it’s effects and how can it be improved.
One of the best takeaways from the discussion is that the best and healthy lighting for you depends on so many factors including the light’s spectrum, duration, intensity, color temperature, and your pattern of exposure. Incorporating each in your decision-making could get you the most sustainable lighting design for your place.
Discover also how important it is for lighting companies to choose the right technologies and why they should always communicate the technical side of lighting to customers. There are also some lighting misconceptions out there that Dr. Veitch clears up from the difference between electric lighting and delighting to the difference of color fidelity and color rendering so make sure to tune in.
Connect with Jennifer Veitch:
• [02:00] The biological and health effects of light/lighting for people.
• [05:25] Good lighting depends on the spectrum, duration, intensity, and the pattern of light exposure.
• [06:44] Electric light vs. Daylight. There is no such thing as “Artificial Light.”
• [07:46] Lighting affects our hormonal patterns indirectly because of changing daily rhythms.
• [08:50] Are Shift work schedules good for your health?
• [10:20] Dr. Jennifer Veitch: “I don’t think the evidence is very strong to suggest that you need a particular correlated color temperature at a particular time of day.”
• [12:20] Dr. Veitch’s – Color temperature is not the only factor you should consider.
• [15:18] Dr. Veitch shares some initial studies in the 80s about lighting and its health effects including John Ott’s.
• [16:50] Big companies and marketers need to communicate with the technical lighting experts.
• [18:18] Full Spectrum electric lighting: Is it real or not?
• [19:25] Introducing the new concept of Integrative Lighting.
• [20:14] Color Fidelity vs. Color Rendering.
• [21:40] TM-30’s Gamut Index as Color Rendition Metrics.
• [23:19] Michael – (referring to emerging lighting research) “this is like fish becoming aware of the water.”
• [25:13] Association of low color temperatures of light with the warm and lively ambience of a social event.
• [27:35] Consider who’s the lighting for. For example, if it’s a street light, is it for a highway interchange or a residential street?
• [30:12] considering issues like glare in when designing luminaires.
• [33:12] Alertness from color temperature or light output.
• [34:50] Is lighting a science?
• [37:20] For a lighting sales marketer, what solutions do you offer to a customer that requests ‘healthy lighting’ for his office?
• [41:44] The need for good research and communication to draw the line between the lighting myths and lighting facts.
• [46:30] “Good design using good technologies”: Dr. Veitch gives an overview of their research program that could help lighting companies choose the right technologies.
• [50:40] Flicker is a huge problem in the lighting industry right now.
• [54:37] Individual control over your lighting features.