Yulei XING, Jinsong WANG, Yunchuan ZHANG, Xin XU. Design of emission optical system with common optical path for projection and scanning based on liquid lens[J]. Infrared and Laser Engineering, 2025, 54(3): 20240506
- Infrared and Laser Engineering
- Vol. 54, Issue 3, 20240506 (2025)
Fig. 1. Working principle diagram of the emission optical system with common optical path for projection and scanning
Fig. 2. Schematic diagram of dynamic focusing structure
Fig. 3. Liquid lens structure
Fig. 4. Variable beam expansion optical structure diagram
Fig. 5. Structural diagram of the co-optical path transmitting optical system
Fig. 6. Zoom curve of launching system
Fig. 7. Divergence angle at different beam expansion ratios
Fig. 8. Wavefront aberration at different beam expansion ratios
Fig. 9. Spot diagram of focused light spot at different distances
Fig. 10. Irradiance diagram of light spot cross-section of 520 nm laser at different distances under physical optics propagation
Fig. 11. Irradiance diagram of light spot cross-section of 638 nm laser at different distances under physical optics propagation
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Table 1. Structural parameters of liquid lens at optical power of –6 dpt, 0 dpt, 10 dpt
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Table 2. Optical system design parameters
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Table 3. The first set of structural parameters
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Table 4. The second set of structural parameters
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Table 5. The corresponding focal lengths
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Table 6. Input tolerance
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Table 7. Tolerance analysis results of optical system in scanning state
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Table 8. Tolerance analysis results of optical system in projection state
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