Qing He, Yuefei Du, Kangxiao Zhao. Research on Optical Color Mixing of Single Lamp Multi Display LED Intelligent Railway Signal[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1133002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 11, 1133002 (2022)
Fig. 1. Area diagram of the railway signal light color. (a) Coordinate distribution of various colors of signal lights (b) local enlarged view of moon white light coordinates
Fig. 2. Chromaticity analysis diagram of the CIE
Fig. 3. Influence of temperature on LED luminous flux
Fig. 4. Hardware of PWM dimming simulation system. (a) Dimming plate; (b) remote control circuit
Fig. 5. Desired coordinate plot of moon white light. (a) Moon white light; (b) location of moon white light coordinates
Fig. 6. Shift of moon white light chromaticity coordinates with operating temperature
Fig. 7. Simulated effect diagram of partial chromaticity coordinates
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Table 1. Coordinate values of color boundary intersection of moon white railway signal lights
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Table 2. Photometric parameters of RGB lamp beads
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Table 3. Shift of chromaticity parameters with temperature
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