This novel system utilizes a Risley prism and lenses for precise beam steering, suggesting potential industrial applications.
This work presents a novel beam steering system combining a Risley prism and a variable magnification beam expander, enabling flexible, high-precision scanning across distances from a few meters to several kilometers, with consistent spatial resolution in the tens of centimeters and scan times in the hundreds of milliseconds. Unlike more complex solutions like fast steering mirrors or metasurfaces, the system uses just five lenses in a compact and cost-effective design. A key focus of this study is the positioning tolerance of the optical elements forming the beam expander. Detailed simulations and experiments were conducted to assess and optimize the sensitivity of each lens to displacement. These results are critical for ensuring precise alignment and managing production costs, making the system a strong candidate for industrial deployment in optical systems requiring versatile beam steering.
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Hentz et al. (2025) studied this question.
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