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OPTICS // DETECTION // PHOTOGRAPHY
Thanks to their high refractive index, ceramic materials are interesting for optical applications as they enable comparatively small sizes in lenses and lens systems.
They are, however, not limited to applications as translucent and transparent components for special transmittance ranges, lighting purposes or high-precision connecting components for transmitting optical signals.
In their application in optical devices and equipment, other technical properties of oxide and non-oxide ceramic materials are effectively utilized, like, for example:
- Mechanical strength
- High modulus of elasticity
- Hardness
- Wear resistance
- Thermal stability
- Low thermal expansion
- Resistance to corrosion
In some cases, for optical systems, brazed high-vacuum-tight composites made of monocrystalline oxide materials, e.g. leuco-sapphire, with special crystallographically oriented sections with thermally adapted metals are fabricated.
For optically active components such as LEDs, ceramic phosphors on the basis of Y-Al-garnet ceramics are interesting as they can meet the high requirements with regard to durability in operating conditions that typically prevail in motorized vehicles.
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