Design and Investigation on Illumination Sensors of Photopic Vision Based on Spectral Analysis

Chaopu Yang; Wenqing Fang; Fan Yang; Ruirui He; Fei Zhu

doi:10.3788/LOP57.090401

Laser & Optoelectronics Progress, Volume. 57, Issue 9, 090401(2020)

Design and Investigation on Illumination Sensors of Photopic Vision Based on Spectral Analysis

Chaopu Yang^1,2,3, Wenqing Fang^2,4、*, Fan Yang^2,4, Ruirui He^1,3, and Fei Zhu^1,3

Author Affiliations

¹College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo, Shaanxi 726000, China

²School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi 330031, China

³Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo, Shaanxi 726000, China

⁴National Engineering Technology Research Center for LED on Silicon Substrate, Nanchang University, Nanchang, Jiangxi 330047, China

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Figures & Tables(12)

Fig. 1. Design principle diagram of photopic visual illumination sensor

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Fig. 2. Schematic of photopic visual illumination sensor structure

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Fig. 3. Design flow chart of photopic visual illumination sensor

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Fig. 4. Relative spectral response of LXD44MQ photodetector

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Fig. 5. Correction filters transmittance

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Fig. 6. Comparison of relative spectral response of photopic vision illumination sensors

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Fig. 7. Schematic of measurement error analysis of photopic visual illumination sensor

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Table 1. Analysis and calculation results of the spectral luminous efficiency function of photopic vision
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Table 1. Analysis and calculation results of the spectral luminous efficiency function of photopic vision
Centerwavelength /nm Full width at halfmaximum /nm Integral area of380-780 nm band
555 100 106

Table 2. Main parameters of LXD44MQ photodetector
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Table 2. Main parameters of LXD44MQ photodetector
Size /(mm×mm) Wavelengthrange /nm Reversevoltage /V Open circuitvoltage /V Short circuitcurrent /μA Darkcurrent /nA Peakwavelength /nm
4×4 200-1100 5 0.3 15 2 940

Table 3. Main parameters of correction filters
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Table 3. Main parameters of correction filters
Type Thickness /mm A[2856 K] D65 N_D Bubble Stripe Stress
x y Y x y Y
QB21 2 0.345 0.439 62.1 0.244 0.326 68.8 1.535 C 3C 4
LB9 2 0.462 0.452 86.7 0.353 0.429 85.2 1.547 C-B 3C 3
LB16 2 0.484 0.476 74.0 0.405 0.483 70.2 1.535 D-C 3C 4

Table 4. Deviation calculation results of three kinds of photopic visual illumination sensors

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Table 4. Deviation calculation results of three kinds of photopic visual illumination sensors

Sensor	Center wavelength		Full width at half maximum		Integral area of 380-780 nm band
Sensor	Absolutedeviation /nm	Relativedeviation /%	Absolutedeviation /nm	Relativedeviation /%	Absolutedeviation /nm	Relativedeviation /%
S7686	-5	0.90	+1.58	1.58	+1.18	1.11
BPW28	-5	-1.80	+58.00	58.00	+41.00	38.70
Self-made	-2	0.36	+5.00	5.00	+15.00	14.15

Table 5. Measurement error of self-made photopic visual illumination sensor

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Table 5. Measurement error of self-made photopic visual illumination sensor

No.	Standard illumination value /lx	Measured value /lx	Absolute error /lx	Relative error /%
1	0	0	0	0
2	50.8	52.0	+1.2	2.36
3	100.4	95.4	-5.0	4.98
4	150.0	147.0	-3.0	2.00
5	200.0	203.0	+3.0	1.50
6	500.0	505.0	+5.0	1.00
7	800.0	792.0	-8.0	1.00
8	1000.0	1003.0	+3.0	0.30
9	1500.0	1475.0	-25.0	1.67
10	2000.0	2022.0	+22.0	1.10

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Chaopu Yang, Wenqing Fang, Fan Yang, Ruirui He, Fei Zhu. Design and Investigation on Illumination Sensors of Photopic Vision Based on Spectral Analysis[J]. Laser & Optoelectronics Progress, 2020, 57(9): 090401

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