Category: Lighting Design

Beautiful Light by Whitehead and Lemon Released by Routledge Taylor & Francis Group

Beautiful Light: An Insider’s Guide to LED Lighting for Homes and Gardens, written by lighting designer Randall Whitehead and industry educator Clifton Stanley Lemon, has been published by Routledge Taylor & Francis. This book connects LED lighting technology with the tents of good residential lighting design.

Beautiful Light: An Insider’s Guide to LED Lighting for Homes and Gardens, written by lighting designer Randall Whitehead and industry educator Clifton Stanley Lemon, has been published by Routledge Taylor & Francis. This book connects LED lighting technology with the tents of good residential lighting design.

Beautiful Light is a combination of idea book, design resource, and introduction to residential lighting design. It explores the transition in residential lighting from incandescent light sources to LEDs, provides grounding in the fundamental qualities of light, and shows how LEDs can be applied in residential lighting by following enduring lighting design principles. It explains how LEDs differ from older light sources, with graphics that show how to design with light layers, illuminate people, and balance daylight and electric light. Every room of the house, as well as exterior and garden spaces, is addressed in 33 case studies of residential lighting with LEDs, showing a wide variety of lighting projects in different styles.

“Since LEDs are still relatively new to many homeowners and designers, we wanted to write a book showing how they have been used to make really beautiful lighting designs,” said Whitehead. “We also feel that rather than looking back nostalgically at the old incandescent lighting, we should embrace the newer high quality LEDs that are now widely available on the market, as they’re better in every way. We show that excellent lighting design now has even more possibilities with this wonderful technology.”

Click here to learn more.

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Achieving Better Measurement of Discomfort from Glare

The prevalence of LED lighting has brought greater attention to the issue of discomfort produced by glare. At what luminance does glare become intolerable?

The prevalence of LED lighting has brought greater attention to the issue of discomfort produced by glare. At what luminance does glare become intolerable?

The answer has varied from one study to another: more than 80 experimental studies over the past few decades have not produced a consensus. A report, funded by the U.S. Department of Energy (DOE) and published in LEUKOS, reviews these past studies of glare and identifies some aspects of experimental procedures that influence results and their implications. The intent is for this study to help refine understanding of these experimental procedures, and to help establish good practices with respect to experiments and analysis of results.

Two experimental procedures have been the most common in past studies of discomfort from glare: “adjustment,” in which participants react to a single visual scene, which is then adjusted until a discomfort reaction is achieved; and “category rating,” in which participants rate the degree of discomfort from a single visual scene. DOE’s new report examines biases that affected the results obtained from these two methods. For adjustment tasks, these include stimulus range bias, anchor effects, order effects, type of control, and visual task. For category rating, the report identifies stimulus range bias, order effects, pre-trial demonstration, response scale design, and data analysis as key factors in experimental outcomes.

With many of the biases in past evaluations identified, the report provides guidance for future research on discomfort from glare. The study concludes with an appendix showing the procedural steps required to generate credible data in the planning, procedure, and analysis stages.

Download the full report.

 

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Roundtable Talks Office Lighting in a post-COVID World

LD+A’s Katie Nale recently interviewed a roundtable of lighting experts about changes they see coming in buildings and lighting in a post-COVID world.

LD+A’s Katie Nale recently interviewed a roundtable of lighting experts about changes they see coming in buildings and lighting in a post-COVID world.

My big takeaways were:

  • The physical office will survive but may condense and become more flexible to accommodate a larger remote workforce.
  • The open office will endure as a collaborative environment.
  • Home office lighting is not up to snuff and needs to be addressed.
  • Lighting controls will grow even more popular.
  • Interest in the relationship between light and health will continue and expand.

Click here to check it out.

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Creating Walls with Light

Another article in Thomas Schielke’s “Light Matters” series at ARCHDAILY.com, “Creating Walls with Light” examines two early approaches to using light to define walls and make a big impact on architecture. Using examples, he presents uniform wall washing and grazing, sometimes with concealed lighting equipment to enhance the effect.

Another article in Thomas Schielke’s “Light Matters” series at ARCHDAILY.com, “Creating Walls with Light” examines two early approaches to using light to define walls and make a big impact on architecture. Using examples, he presents uniform wall washing and grazing, sometimes with concealed lighting equipment to enhance the effect.

Click here to check it out.

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Louis Kahn and the Power of Shadow

The application of light is not only concerned with illumination but its absence–shadow–creating intriguing contrasts for certain types of architecture. In this article published by ARCHDAILY.com, Thomas Schielke describes architect’s Louis Kahn’s approach to light and darkness.

The application of light is not only concerned with illumination but its absence–shadow–creating intriguing contrasts for certain types of architecture. In this article published by ARCHDAILY.com, Thomas Schielke describes architect’s Louis Kahn’s approach to light and darkness.

Click here to check it out.

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IALD Publishes Results of 2021 State of the Lighting Design Profession Survey

The International Association of Lighting Designers (IALD) recently surveyed lighting design business owners and principals about the COVID-19 crisis in May 2020 and October 2020. This survey was repeated in 2021 and posed questions for the January to March 2021 time frame. The result is a snapshot of the state of the lighting design profession in challenging times.

The International Association of Lighting Designers (IALD) recently surveyed lighting design business owners and principals about the COVID-19 crisis in May 2020 and October 2020. This survey was repeated in 2021 and posed questions for the January to March 2021 time frame. The result is a snapshot of the state of the lighting design profession in challenging times.

The survey discovered the profession is reacting with continuing resilience to the pandemic and even a few positives.

Click here to check it out.

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Lighting the Post-COVID Building

In a new Facilitiesnet.com article, Chicago-based lighting designer Avraham Mor describes four key elements of successful lighting designs in a post-COVID world.

In a new Facilitiesnet.com article, Chicago-based lighting designer Avraham Mor describes four key elements of successful lighting designs in a post-COVID world.

He writes:

Office lighting can often be an afterthought for workplace designers, but careful integration of lighting into the design from its inception can result in a lighting design that not only supports productivity and workplace health but creates additional functionality for space, enables advanced wayfinding, and even functions as a brilliant, adaptable (and cost-efficient) medium to reinforce corporate identity and branding.

The four key considerations for a successful design, he adds, are flexibility enabled by controls, personal control, health and wellness, and safety.

Click here to read it.

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Lighting: We’re Doing It All Wrong

In an article published in LIGHT LINES, four lighting experts say current lighting design practices are based on satisfying outdated tasks, resulting in inadequate designs, missed opportunities, and an improper understanding of efficient delivery of light.

In an article published in LIGHT LINES, four lighting experts say current lighting design practices are based on satisfying outdated tasks, resulting in inadequate designs, missed opportunities, and an improper understanding of efficient delivery of light.

In a nutshell, the experts, including Kevin Kelly, Christopher Cuttle, Peter Boyce, and Peter Raynham, say current lighting design focuses on delivering proper illuminance on a horizontal task plane, which in turn was based on predominant paper-based tasks. They call for providing minimum ambient illuminance, which involves lighting the volume of the space and lighting equipment that delivers light to room surfaces like walls and ceilings as well as the traditional workplane.

Click here to check it out.

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The Story of Lighting Design

Lytei’s beautiful video engages twenty leading lighting designers–including Howard Brandston, Chip Israel, Charles Stone, Nancy Clanton, and more–to celebrate and discuss lighting design.

Lytei’s beautiful video engages twenty leading lighting designers–including Howard Brandston, Chip Israel, Charles Stone, Nancy Clanton, and more–to celebrate and discuss lighting design.

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ELECTRICAL CONTRACTOR: TM-30 Turns Five

My most recent contribution to ELECTRICAL CONTRACTOR provides an update on the TM-30 color evaluation method, which turned five this year.

My most recent contribution to ELECTRICAL CONTRACTOR provides an update on the TM-30 color evaluation method, which turned five this year.

With the proliferation of LED lighting, previously accepted flaws in the CRI metric became accentuated. With LED, you can have two products with the same CRI but very different color-rendering abilities. In other words, different effects on finishes, furnishings and flesh tones. To address this, in 2015, the Illuminating Engineering Society in New York produced TM-30, “IES Method for Evaluating Light Source Color Rendition,” a proposed method for color evaluation. The idea behind this method was more information and greater accuracy.

Click here to check it out.

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