波前焦點對位量測研究委託

In response to the mission requirements of ultra-high-resolution optical telemetry satellites, the measurement and monitoring of optical imaging quality is an important part of the assembly verification of the entire system.Festival. The large telescope system in the telemetry satellite may cause the displacement of the focus under different ambient temperatures and affect the final imaging result.However, in the current optical inspection technology, there is still no effective inspection tool to measure the displacement of the focus in real time. The focus position can be determinedPushing back and forth through the wavefront, the Shack-Hartmann Wavefront Sensor (SHWFS) is one of the instruments that can accurately measureThe penetrating wavefront aberration of the lens, but the traditional SHWFS requires an additional collimator (Optical Collimator) due to the limitation of the dynamic rangeTo collimate the measured wavefront, which results in distortion of the original wavefront measurement result. In order to accurately measure the original wavefront of the optical system, this researchResearch will develop a high dynamic range wavefront detector (HDR-SHWFS), which no longer needs a collimator to collimate the wavefront to be measured, and can directly measure the originalThe wavefront to be measured pushes the focal position back and forth, which is then applied to the telescope optical system detection of the telemetry satellite