| 摘要 |
The wavefront sensing device consists of a light source, a binary phase mask (10), a fixed focus lens (11) and at least two finite sized spatially separated detectors (12) positioned in the plane of focus of the wavefront sensing device. The binary phase mask (10) simultaneously applies a positive bias and a negative bias to the wavefront of the incident light such that a pair of spatially separated light points are generated in the plane of focus and detected by the detectors (12). The difference in intensity between the pair of light points is representative of the aberration of the wavefront of the incident light from the ideal.
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