 Home > Transparent Ceramics |
| Transparent Ceramics (LUMICERATM) |
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New Transparent Ceramics |
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| When ceramic materials are fired, crystal grains grow together to become polycrystalline. The boundary between crystal grains is called grain boundary. Normally, ceramics are opaque because pores are formed at triple points where grains intersect, causing scattering of incident light. Murata has optimized the entire development process of making dense and homogenous ceramics to improve their performance. As a result, we have developed transparent ceramics by reducing pores inside ceramics. Barium based transparent ceramics, offering a very high refractive index as well as a wide transmission range from visible to infrared light, are projected to pioneer as a new frontier in optical materials.
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| Comparison of Refractive Index between
Transparent Ceramics and Conventional Optical Glass |
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| The refractive index of the transparent ceramics is 2.08 (λ = 587 nm). It is quite high compared with that of conventional optical glasses (between 1.5 to 1.8). Furthermore, as there is no birefringence in the ceramics, there is a potential for downsizing and advancement of optical devices with optical elements, such as lenses. |
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