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Superluminescent LEDs target displays
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COMPOUND SEMICONDUCTOR
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2018-02-28
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IT소재부품, 해외동향, 전자정보디바이스, LED, IT부품정보, IT부품정보 네트워크, 부품, GreenIT,
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as speckle. This is a particularly troublesome for augmented-reality applications, where high-fidelity images are critical. Despeckling solutions have been developed to minimize interference. But success is limited, and the hardware that is required is often too bulky or expensive to incorporate into consumer electronic devices. What’s needed is a source that combines the best attributes of the laser and the LED. And the good news is that this device already exists, in the form of a superluminescent LED (SLED). It provides a directional light source with a broadband emission spectrum that yields a low degree of speckle noise and a high image quality (see Figure 1).