< VIDEO REVIEW >
This documentary film comprised of 3 volumes will tell you the story of how the LED Clear Light Bulbs, which look exactly like incandescent light bulbs and emit a very nostalgic light, were developed. Prague Castle (Czech Republic) is the largest ancient castle in the world and a UNESCO World Heritage site. 10,000 light bulbs at this castle, which has maintained its appearance over the years, were replaced with Panasonic's LED bulbs. The type of Panasonic bulbs that were most used were the LED Clear Light Bulbs, which has a transparent glass shell and a LED substrate in the center that closely resembles filaments of incandescent light bulbs. Please take a look at this documentary, which introduces the story behind the development of this unique LED and scenes from the Prague Castle as old conventional light bulbs are replaced with the new.
Part 1 introduces the initial stages of development, from the idea of the developer that got everything started to the prototype. Part 2 describes how the person in charge of developing products for the European market saw the prototype and became very keen to introduce it to the European market. The LED Clear Light Bulb first introduced to the European market was named "Nostalgic Clear" after its familiar glow. Part 3 features scenes of the developer in Prague attending to the installation of light bulbs.
Changing the lighting in the Prague Castle to LEDs [0 min 00 sec]
Prague is the capital of Czech Republic, and the Prague Castle located in this capital is one of the most prominent symbols of the nation. It welcomes millions of visitors each year. Almost all the light bulbs used to light this castle were incandescent light bulbs. Until now, these could not be replaced with more eco-conscious lighting because conventional bulb shaped fluorescent lamps and LED bulbs would have not been able to maintain the ambience of this historical architecture. But the newly-developed, energy-saving, long-lasting LED Clear Light Bulbs offering the same warm nostalgic glow has helped launch this project, through which 10,000 conventional light bulbs were replaced by LEDs.
Product development began somewhat accidently [2 min 39 sec]
Conventional LED light bulbs have many metal parts (see bottom left photo). The Development Project Leader Mr. Mori says, "There are a lot of people who want to continue to enjoy the ambience of incandescent lights." He is one of them, and so he began to make a prototype with left over scraps from the factory. When he saw the filament glow like an incandescent light bulb, he described that it was as though life had came into existence inside the bulb. The prototype was developed from one man's idea somewhat accidentally. But it caught the eye of the person in charge of product development for the European market.
Creating an LED light bulb that looked and shone exactly like incandescent bulbs - this was a completely new undertaking for Panasonic. There were many obstacles that had to be overcome on the way. Part 2 introduces various challenges the developers faced, and the unique request from Ms. Muranaka, the person in charge of developing products for the European market. You can see just how dynamic developing a product can be.
The new bulb created through much pain and effort was named "Nostalgic Clear." Part 3 introduces scenes of these new light bulbs being installed in various areas of the Prague Castle. The Project Leader, Mr. Mori for whom this product felt like his own child, also traveled to Prague to witness the critical moment.