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False-col SEM of cracked surface of compact disc
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False-col SEM of cracked surface of compact disc
False colour scanning electron micrograph of the surface of a compact disc cracked to show the musical layer below (centre). The disc is made of plastic, which is pressed with a series of fine depressions (notches), representing a digitised musical signal capable of being read by a laser. To reflect the laser light, the music layer is coated with a fine film of metal (unseen) which follows the depressions exactly. This layer is covered by another layer of transparent plastic, which is visible here. The music is sandwiched between two layers of plastic, which prevents dust & scratches from affecting the sound. Magnificat- ion: x1000 at 10x8 inch size, x143 at 35mm size. Blue & red colorvir
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6440989
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
Audio Sound Communication Communications Compact Disc Music
EDITORS COMMENTS
This print showcases a false-coloured scanning electron micrograph of the cracked surface of a compact disc. At the center, we can observe the intricate musical layer concealed beneath the cracks. Crafted from plastic, this innovative medium is meticulously pressed with an array of fine depressions or notches that represent a digitized musical signal capable of being read by a laser. To ensure optimal reflection of laser light, an unseen thin metal film coats the music layer, precisely following each depression. The transparent plastic layer visible in this image acts as a protective shield for this delicate arrangement. By sandwiching the music between two layers of plastic, dust and scratches are effectively prevented from compromising sound quality. Magnified at x1000 for 10x8 inch prints and x143 for 35mm prints, this mesmerizing SEM image unveils both blue and red hues to enhance visual clarity. Beyond its aesthetic appeal lies a profound representation of communication technology's impact on audio sound reproduction. This remarkable photograph offers us an intriguing glimpse into the inner workings of compact discs while highlighting their crucial role in transmitting music seamlessly across various platforms. Captured by Science Photo Library, it serves as a testament to human ingenuity and our constant pursuit to revolutionize how we experience music without mentioning any specific commercial use or company affiliation.
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