Simulating Magic Eye Tubes With Spinning LEDs

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So-called “magic eye” tubes are display devices, which indicate signal level by the projection of wedge-shaped shadows on a glowing view screen. They were developed in the 1930′s for use as tuning indicators in radio receivers, and as alternatives to the then-expensive-to-manufacture meter movements.
Because they haven’t been produced in decades, and because they degrade and wear out with use, the supply of functional eye tubes is dwindling. I thought there might be value in coming up with a potential substitute– something that acted like an eye tube that could replace them in applications like antique radio restoration and general experimentation.
It turns out that convincing eye tube behavior can be simulated with one or more LED’s mounted on a rotating disk. The electronics to drive the LEDs amounts to little more an an op-amp, a transistor, and some timing components.
This video demonstrates the appearance of a real eye tube in operation, and introduces the principles involved in simulating one through electro-mechanical means. The video shows that the display generated by the electro-mechanical equivalent can be fairly convincing.   www.bgocled.com

Octolively: Digital interactive LED surfaces

Posted by admin on September 15th, 2011

Octolively: Digital interactive LED surfaces @ Evil Mad Scientist Laboratories. [via]

Octolively is an all-new, open source interactive LED surface kit that we’re releasing today. Octolively features high resolution– an independent motion sensor for every LED, stand-alone operation, a variety of response functions, and easy scaling for large grids.   www.bgocled.com

Expand opportunities for other emerging markets to increase the LED packaging factory layout

 Light-emitting diode (LED) packaging plant is actively expanding in emerging markets to expand revenue sources. To avoid upstream LED epitaxy, grain plant and downstream vertical integration system manufacturers around the double-team, LED packaging industry has begun to reach to new markets, and strengthen cooperation with local distribution channels, developing new growth opportunities.Photonics Industry & Technology Association (PIDA) industrial and technological group of senior industry analyst Guo Ling said that in 2011, suffered under the pressure of weak demand, the digested stock, with a certain economy of scale upstream LED epitaxy, grain companies have been actively to find the product to the sea, then have to skip the packaging plant, procurement of hand dominance directly with brands negotiate lower orders, to gain more revenue.
In addition, regardless of LED upstream or downstream system component supplier industry caught a large scale vertical integration, also located in the middle of the LED industry chain development by compression packaging factory, together with European and American debt crisis of so many LED packaging factory has been at full speed to launch a new layout.
Guo Ling pointed out, LED packaging industry has been successively extended to the operational reach Russia, India, Central and South America, Africa and other emerging countries, and deployment of local dealers, distributors and agents, trying to fight through dense channel more government projects and tourists, and even strategic partnerships with brands to take to achieve greater profitability.
Guo Ling analysis, LED packaging factory to all resources are no longer concentrated only in Europe, China and other markets, but more optimistic about the growth potential of other emerging countries, then the initial emerging countries still rely on the government more than demonstration projects, so widely cloth with local access will be a key to a better grasp of the government project trends.
However, when the push into emerging markets, inventory and material management challenges will increase, as the LED packaging factory immediately facing the issue. Guo Ling stressed that the focus on the different countries for the LED lighting functional and performance needs of very different, to meet different customers for the LED lighting requirements, must respond to different market corresponding to the product portfolio, this will result in inventory and materials management, pressure becomes more the importance of cost control, a LED packaging industry joined forces to overcome the problem.
    More LED products visit: www.bgocled.com

LED lighting: the history of the maximum efficiency and minimum price steps away

The near future, probably led to white 200lm / W, became the most efficient light source, the price will be lower than fluorescent lights, almost equal to incandescent bulbs. Any device, anywhere can use LED lighting in the coming era.
By March 11, 2011 a major earthquake and tsunami, Japan's Kanto region and the northeast region into a serious power shortage in the state. To fill the gap in nuclear power plant outages, the need for new power generation equipment increasing, and control power consumption has become a priority.
In this case, to achieve energy-saving effect can be immediate "LED lighting" attention. Lighting electricity consumption in Japan, accounting for about 2 percent. The LED technology is the use of energy-efficient LED lighting, reducing electricity consumption.
LED of the active also in the figures. For example, GfK Marketing Services Japan released data show that after mid-March 2011, LED light bulb sales in Japan increased rapidly. To the second week of April, LED light bulbs in all light bulbs in the number of percentage share of 27.1%, the amount ratio of 67.0%, have hit a record high. Especially in the face of power shortages Kanto Koshinetsu region, sales of the week increased 182.1% over the previous year, far higher than the national average increase of 120.4%.
Corporate use of LED lighting is also very active in the action. For example, the chain of 7-11 convenience stores in Japan's decision to start from May 2011, the Tokyo Electric Power Company area as the center, to about 5,000 shops and stores in-store signage lighting gradually replaced with LED.
"Sales is three to four times the previous year."
LED lighting technology is not new now. Not just in Japan, other countries are actively used. This is because the white LED lighting with LED life over 40,000 hours, or about four times as fluorescent, replacing the lower frequency, but also has lower power consumption than fluorescent lamps 10 to 40% advantage.
In Japan, in April 2010 in response to the implementation of the "Energy Act" revised edition, with more and more LED lighting business. LED white LED lighting business shipments increased sharply, Citizen Electronics, said, "shipments in 2010 increased 3 to 4 times the previous year."
LED-based white LED prosperity due to lower prices. In the past, prices have been higher than the white LED incandescent bulbs and fluorescent lamps and other traditional sources. In the street and some use white LED lighting in 2005, the unit price 1lm luminous flux (brightness of the unit price) is about 10 yen / lm. Than incandescent bulbs 0.1 to 0.2 yen / lm, fluorescent 0.3 to 0.6 yen / lm is not an order of magnitude. However, the brightness of white LED unit is more than 30% per year rate of decline into 2011, the industry-wide average has dropped to about 0.7 yen / lm. Provided to large customers the price is only 0.4 ~ 0.5 yen / lm, encroaching upon the fluorescent
    More LED products visit: www.bgocled.com