Zhongsheng Zhai, Jiaojie Huang, Hang Zhao, Jinsong Li, Qinghua Lü, Xuanze Wang. Intensity Consistency Control Method for Multi-Wavelength Micro-Interferometry[J]. Laser & Optoelectronics Progress, 2020, 57(3): 031202
- Laser & Optoelectronics Progress
- Vol. 57, Issue 3, 031202 (2020)
Fig. 1. Schematic diagram of light intensity consistency interferometry system
Fig. 2. Spectral characteristic curve of white light source
Fig. 3. System control block diagram
Fig. 4. LED driving circuit
Fig. 5. Diagram of light intensity dynamic curve during switching process
Fig. 6. System step response
Fig. 7. Illuminance dynamic curve during wavelength rotation
Fig. 8. Interferograms before and after intensity control. (a)(d) 510 nm interferograms before and after intensity control; (b)(e) 540 nm interferograms before and after intensity control; (c)(f) 640 nm interferograms before and after intensity control
Fig. 9. Vertical grayscale projections before and after intensity control. (a) Before intensity control; (b) after intensity control
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Table 1. Light intensity adjustment schedule
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Table 2. Visibility of three-wavelength interference image
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