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Centration Testing of IR Lenses

OptiCentric^® IR with its new MWIR measurement head is suitable for centration measurement and alignment of infrared lens systems. The combined MWIR-VIS measurement head exchanges automatically and reaches an accuracy of ≤ 0.1 µm for VIS and ≤ 1 µm for MWIR. While visual light may be used for centration testing of single infrared lenses and concerning most requirements in the assembly of lens groups, the use of MWIR light becomes indispensable for evaluating centration errors of assembled IR lens systems. The perfect solution for this demand is now provided by OptiCentric^® IR.

The system is equipped with a dual band MWIR and VIS measurement head that allows the operator to conveniently choose the operation mode suitable for his particular application. The sample – VIS or IR – is analyzed by OptiCentric^® IR using VIS light for as many parameters as possible providing fast, precise and comprehensible measurements. Subsequently, IR lens systems are automatically tested with the MWIR head for centration and alignment errors.

The highly precise measurement is supported by the OptiCentric^® software. It controls the comprehensive testing and displays the measurement results in a way that is easy to understand. Evaluation of individual pass/fail criteria and communication to a data base allow easy and quick assessment and documentation of the measurement results.

Key Features include:
   •  Combined MWIR and VIS instrument with automatic exchange of measuring heads
   •  Lens centering accuracy of ≤ 0.1 μm for VIS and ≤ 1 μm for MWIR

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