Archive for the ‘General Commentary’ Category

thumb-meterFor those who attend my presentation on Metering and Meter use at the LED Specifier Summit this Tuesday (9:00AM) here is the related reference information and a copy of handouts for the presentation. Let me know what you think and post your comments or questions here. If you have any questions or wish to discuss this presentation or have a metering issue you’d like some help with, let me know.

Here is a copy of the presentation handout here: LED Spec Summit KLW Meter Presentation

The following are a summary of the links to the meter files content referred to in the presentation:

Meter Review

Flicker Wheel

Flicker Meter Review

LQC Classification Article

LQC Workbook

Color Viewer

 

On a Personal Note

Posted: November 10, 2016 in General Commentary
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My trusted and most valued tool – a resto-modded 1967 South Bend tool room lathe with all the fixings

My joy in life is in making things. In this, there is rarely a day that passes where I am not building something or tinkering a gadget together. Yesterday it was  drill fixture to aid a co-worker in drilling 30 brackets in less than a half hour, while protecting fingers from the part jumping around. It was 20 minutes a work and a few scraps of metal, job done – smile on face. Otherwise, it’s a light fixture for the conference table, a test rig for a cure light, a finger brace for a kids broken finger, an adapter to convert an old fluorescent task light to a UV cure light/500Fc detail work light combination. (more…)

warrantyThere is a great deal of noise in the SSL market on the topic of warranty coverage. The usual lighting industry one year warranty has been determined as obsolete as the glass bulbs they housed, with new demand now for coverage of LED products of 5 years, 7 years, even 10 years. The lofty demand is founded on the concept that if the LEDs are indeed going to last 50,000, 70,000 or even 100,000 hours (13 to 26 years in heavy commercial use), then why not back that up with a warranty that reflects that performance claim? This is further supported by the reasoning that such a warranty can be used to justify the added expense of LED products. All seems reasonable enough, and there are certainly producers out there willing to deliver warranties with extended coverage.

The question is, are these real warranties, or just paper claims? Perhaps more important, are the demand for this type of warranty coverage even rational? (more…)

June and July are not only the first nice days of the year, they mark several milestones for me. First, its’ the 10th year of Lumenique LLC being focused exclusively on solid-state lighting – marking the point at which I left my last position as VP of Marketing and Design at Visa Lighting in 2006 to focus on all things solid-state as a solo act. Prior to that, Lumenique has been many things, from hobby presence and sculpture studio, to lighting consulting side business. This last decade is its first as a focused entity and source of real income. 6 years ago, I launched a task lighting product line, under the name Tasca. I am a serious task light advocate, and build Tasca products for the tougher applications, like shop machines and Navy ship bridge and map tasks. Most of the products we make at Tasca are custom to a specific requirement, either mounting or light characteristics. This will be a greater focus in coming years, as there are many opportunities in task and work lighting I’ve found interesting.

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I propose that all pursuits of a color quality metric represented in any form of numeric value based on averages of performance over any number of color samples is wholy inadequate and a wast of time. We have been using such a system for far too long, with too many questions and related surrounding quality issues unanswered to continue with such a weak approach. I suggest that we pursue a Lighting Qualities Classification system that encompass eight (8) core variables that are critical to identification and selection of lighting products. This would be represented in a similar fashion as the successful Ingress Protection (IP) rating system already in use.

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IALD Departure

Posted: December 28, 2015 in General Commentary
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The following is not directly related to the work of solid-state lighting, but does reflect a situation that others have found themselves in related to organizations and the industry that solid-state lighting exists within. I offer it as a personal insight and experience with one of lighting’s major organizations –  perhaps offering comfort to others in similar situations.

1985 – Proud Associate Member and Optomistic Young Professional

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The recent press release announcing Philips, Cisco, et al,  joint venturing to deploy and build Power over Ethernet (PoE) networks in lighting is going to fuel this discussion and create a stir, without a doubt. In the press release, all the current hot buttons were pressed with vigor, from App controlled lighting using smart phones to ties to the Internet of Things (IoT). The picture painted by this release, presentations on this topic, and other articles floating about, indicate a future where lighting breaks its bonds of wiring to be free to serve us all in magical, never before realized new ways, using less energy through magic DC power, finally severing us from the drag of AC power. It’s certainly got folks talking.

At the recent LED Specifier Summit in Chicago, I was asked by no less than 8 people what I thought about PoE, and whether it was going to be the next big disruptive innovation to strike lighting. Concurrent to this were phone discussions with technology providers and fixture manufacturers, asking similar questions. It was hard not to think that something was going on, as everyone seems to be all quivery about it. The problem is… I am not so sure what all the fuss is about, and whether anyone is really thinking this through. I like the concept of a distributed network style, low voltage DC lighting infrastructure. It solves fixture design issue, and presents intriguing possibilities for integrating controls, lighting and the IT universes together in ways our current system of isolation-in-high-voltage simply cannot easily address.

Advantages Impossible to Ignore (more…)