Incandescent lamp and LED perfectly combined with Panasonic to launch CLEAR LED dual-purpose bulb

In Japan, because incandescent lamps are too inefficient, they have been banned from production, but many people still miss the warm glow of incandescent lamps. In order to preserve this precious and special light source and improve energy efficiency, Panasonic decided to combine incandescent lamps with LEDs, so the CLEAR LED was born.

Panasonic engineers said that the combination of incandescent lamps and LEDs is the most perfect lighting. With a warm and nostalgic atmosphere, it also reduces energy consumption. The initial topics of development were "skin" and "diffusion of light."

Since the LED is a linear light source, the light is difficult to diffuse. The usual LED bulbs are translucent and have reflectors added to allow the light to expand. But because of the re-emergence of the incandescent light, translucency would not work. In order to solve this problem, the filament codenamed LDA4LC has entered the developer's sight.


A typical LED lamp has a built-in fixed water-green translucent plate with a yellow phosphor on it. So what about the CLEAR LED? The answer is that the phosphor is sandwiched by two transparent substrates and the surface is extremely smooth, so that the soft and warm light of the incandescent lamp can be restored.

In order to restore the effect of the incandescent lamp, the position of the light source is exactly the same as that of the old incandescent lamp. The two thin pillars, the energized wires, and so on are all identical. The goal is to be identical except that the illuminator is changed to LED.

As a light bulb, one more thing that needs to be solved is the energy efficiency. The usual LED bulbs are covered by a large heat sink, so that the heat is not lost and the LED life is increased. However, the filament used in the Panasonic CLEAR LED is floating in the air, so the larger heat sink can not be used. The production team simply used a new type of white resin sandwiched between the filaments and the struts.

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