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republic of liberia Optical Black Material
Product Description
Size:φ5*4mm
Accuracy requirements:The size accuracy of the lens file is 0.001MM, the concentricity is 0.001mm, and the roundness is 0.001mm.
Application:Mobile phone camera
Optical black material represents the pinnacle of light-absorption technology, creating surfaces so profoundly dark they seem to devour light itself. This extraordinary material achieves near-total light absorption across the visible spectrum, with some advanced versions capturing up to 99.996% of incident light – a blackness so absolute it challenges human depth perception. Unlike conventional black paints or coatings that still reflect 2-5% of light, optical black materials employ sophisticated micro or nano-structures to trap photons through a combination of geometric absorption and destructive interference. The effect is visually startling: three-dimensional objects coated in this material appear as flat, featureless voids, their contours erased by the absence of reflected light.
The engineering behind optical black materials reveals their remarkable complexity. Some versions use vertically aligned carbon nanotube forests, where millions of microscopic tubes act as light traps, capturing photons in the gaps between nanotubes through repeated reflection and absorption. Other implementations employ precisely engineered metamaterials with surface structures smaller than light wavelengths, effectively preventing reflection through quantum optical effects. These materials often require specialized deposition techniques like chemical vapor deposition for nanotubes or lithographic processes for metamaterials, making their production as demanding as their performance is impressive. The result is a surface that not only looks astonishingly dark but also exhibits unique thermal properties, as absorbed light converts almost entirely to heat rather than reflection.
F1-6,Building 2,Baolong Zhizao Park,Baolong 2nd Road,Longgang District,Shenzhen,China 518116
