Monthly Archive for June, 2009

Street Lamps Get Revamped with LEDs

Biologically speaking, humans are not nocturnal animals. We’re diurnal, which means if left to our natural rhythms, we’re awake during the day and asleep at night. Our eyes, therefore, are not built to function well in the dark. However, we’ve developed a social infrastructure that depends on—even thrives in—nighttime activity. And who would blame us? Nighttime is fun time! Unfortunately, powering all of the lights we need to illuminate those after-dark endeavors is NOT fun for our pocket books or the planet. Just think about the millions of street lamps the burn bright every night across the nation. Our society as we know it could not exist without them and yet, our planet as we know it might disappear if we continue to use such inefficient lighting methods on such a large and damaging scale.

LED street lightsThere is hope, however, in the form of LEDs. LED streetlights, for instance, use 50—70% less energy and have a lifespan that’s three to five times longer than the traditional sodium street lamp. Another benefit is that the light from LEDs is more easily directed than that of incandescent bulbs; urban dwellers will appreciate the newfound darkness of their bedrooms when LED street lamps are installed.

For these reasons, forward-thinking cities everywhere are switching their civic lighting templates to include LED lights. Seattle recently announced that it would replace its 40,000 streetlights with efficient LED fixtures. Like many cities country-wide, Seattle received a federal “Energy Efficiency and Conservation Block Grant,” which will help pay for the transformation.

But even if your concern isn’t lighting the streets, back alleys and parks of your city, and maybe you just need to illuminate your driveway or the pathways that run through your back yard, we’ve got the waterproof spot or strip lighting to meet your needs.

The sign we had made for our booth at Maker Faire 2009

This sign was built for the Elemental LED booth at Maker Faire 2009 in San Mateo.

Creator Joe Martin describes how it works: “Each circle of their logo is an individually addressable RGB pixel with 12-bit color depth. The sign can function independently and display random color fades, or can be controlled via serial from a computer or MIDI from any MIDI device.

“In this demonstration, a Jitter patch written by my pal John Taylor sends control codes to the sign from on-screen color sliders, as well as scales movie files down to 4×4 and sends them to the sign. These movies can be used to control either colors or the luminosity of whatever color you have selected. In addition, the patch watches for OpenOSC packets so that you can use your iPhone or iPod Touch to control the colors of the sign.

“My controller circuit board design uses a TI LED driver chips to control 48 discrete channels with constant current control for 30mA per channel at up to 40V. I cut the sign as well as the eggcrate bezels out of 1/8″ acrylic on an Epilog 40W laser cutter/engraver.”

Elemental LED Makes a Name for Itself at Maker Faire 2009

Elemental LED Makes a Name for Itself at Maker Faire 2009

We are thrilled to announce that Elemental LED’s first tradeshow experience went off without a hitch! Maker Faire 2009, the country’s largest do-it-yourself festival, provided our first opportunity to display, demonstrate and get creative with our products in a public arena. And did we ever! Over the two-day event (May 30—31), our booth was quite the popular place to be. The focus of our installation was interactivity. Everything we had to offer—from our product displays to our workshops—engaged the audience on a participatory level. We ensured that each visitor left with a better understanding of how LEDs can be used to meet his/her individual needs, reduce environmental impact and improve overall quality of life. Check out some of the different aspects of our Maker Faire booth below.

Expertly crafted by our friends at Arcane Solutions, our displays demonstrated the unique energy savings, huge lumen output and adaptability of our products.

Product Displays
Expertly crafted by our friends at Arcane Solutions, our displays demonstrated the unique energy savings, huge lumen output and adaptability of our products. We showed off most of our strip lighting, our waterproof, flexible LEDs, compared brightness, heat and wattage output in one of our LED bulbs to that of a regular incandescent bulb, and used our full color LED wall panels as enticing eye candy.

An especially exciting part of our display was the nearly 2ft X 2ft Elemental LED logo we had fabricated to illustrate the unique customization capabilities of our LEDs. Through this demonstration, viewers learned not only of the versatility of our color changing lights, but also that with the right programming, anyone can manipulate and control our LEDs remotely using a computer and/or iPhone. Choose your own colors, opacity, brightness and/or patterns and control them from your personal handheld device—the possibilities are endless!

led_for_diy

Soldering Workshops
In keeping with the theme of Maker Faire, we also wanted to incorporate an activity that allowed festival-goers to make something with their own two hands. We achieved this by holding soldering workshops in which participants learned how to solder components (transistors, voltage regulators, capacitors, etc) to a special Elemental LED circuit board. If done correctly, each person walked away with a working sample of our color-changing flexible LED strip lighting that they built themselves!

Syncomasher
Another important element of our booth was the Syncomasher, an interactive audio instrument created by musician and artist Matt Moldover. The instrument combines five controllers that each represent a unique sonic element, and are all connected to one computer brain. The result is an “electronic drum circle” that’s extremely entertaining for all age groups. Elemental LED lights were used in the Syncomasher to provide visual feedback and aesthetic appeal.

Thank you
Over the course of the weekend, we met hundreds of interesting people, and connected with like-minded companies and organizations. We’re excited about the possibilities and will continue to expand our network and to grow as a company. Elemental LED would like to thank everyone involved in making our experience at Maker Faire a complete success. We hope to see you next year!

Elemental’s Index

Percentage of an incandescent light bulb’s energy input that is emitted as heat: 98
Maximum estimated lifespan of a compact fluorescent bulb, in hours: 15,000
Minimum estimated lifespan of an LED light: 50,000
Minimum number of years an LED light will last if used 3-4 hours per day: 40
Factor by which a fluorescent lamp will outlast an equivalent incandescent lamp: 8-15
Factor by which an LED may outlast an incandescent: 100
Ratio of the brightness of an LED bulb to that of a CFL: 5 to 1
Year in which the LED was introduced in America as a practical electronic component: 1962
Year in which Russian radio technician Oleg Losev discovered that diodes emit light: 1927
Estimated age of the sun, in years: 4,570,000,000
Rough amount of sunlight reaching the earth’s surface on average, in watts per sq. meter: 342
Amperage with which High Power LEDs can be driven, compared to normal LEDs: 10
Approximate luminous efficacy (brightness by power consumption) of a typical CFL: 60
Average LE of the sun: 115
Approximate luminous efficacy of an LED developed in 2008: 170
Luminous efficacy, in 2008, of technology using nanocrystals: 300
Luminous efficacy of a candle: 0.3
Percentage of fluorescent tube lighting that can be dimmed: 0
Percentage of LED strip lighting that can: 100
Amount of mercury contained in an average CFL, in milligrams: 4
Amount in an LED bulb: 0
Number of milligrams of ibuprofen in a standard tablet: 200
Number of compact fluorescent lamps sold in 2007 in the United States: 270,000,000
Percentage of the 104,000 tons of U.S. mercury emissions that year represented by CFLs: 0.1%
Number of months it takes the efficiency and light output of LED technology to double: 36
Number of LED bulbs that could fit in an area the size of the sun: 347,995,000,000
[sources: Elemental, Wikipedia]