Development of Optical Films Based on Head-Mounted Display to Compensate for Gender Differences in Color Temperature of VR

Xiuhua Fu; Yixin Chen; Dongmei Liu; Jing Zhang; Cheng Lu

doi:10.3788/AOS202141.0331001

Acta Optica Sinica, Volume. 41, Issue 3, 0331001(2021)

Development of Optical Films Based on Head-Mounted Display to Compensate for Gender Differences in Color Temperature of VR

Xiuhua Fu¹, Yixin Chen^1、*, Dongmei Liu¹, Jing Zhang¹, and Cheng Lu²

Author Affiliations

¹College of Photoelectric Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, China

²Chengdu Guotai Vacuum Equipment Co., Ltd., Chengdu, Sichuan 611130, China

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Figures & Tables(25)

Fig. 1. Color perception of human eye versus incident angle of light source as well as HMD field of view

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Fig. 2. HMD internal structure and light path

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Fig. 3. Imaging optical path of Fresnel lens

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Fig. 4. OLED relative spectral power distribution after normalization^[12]

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Fig. 5. 1931 CIE-XYZ chromaticity diagram^[13]

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Fig. 6. Isochromatic temperature lines and intersection points on blackbody radiation trajectory in chromaticity diagram^[13]

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Fig. 7. Spectrum at each transmittance

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Fig. 8. Transmission spectral test curves forsix groups of filters

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Fig. 9. Value of conversion coefficient K_x of two-band monochromatic light

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Fig. 10. Value of conversion coefficient K_y of two-band monochromatic light

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$Spectral transmittance curves of single-sided antireflection coatings on bases with different refractive indexes$

Fig. 11. Spectral transmittance curves of single-sided antireflection coatings on bases with different refractive indexes

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Fig. 12. Influence of incident angle on theoretical transmission spectral curve for each color temperature. (a) 4876 K; (b) 9333 K

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Fig. 13. Influence of incidence angle on theoretical spectral curve for each color temperature. (a) 4876 K; (b) 9333 K

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Fig. 14. Theoretical and actual transmittance curves under different color temperatures when K9 is used as substrate

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Fig. 15. Influence of incident angle on test spectral curve under different color temperatures. (a) 4876 K; (b) 9333 K

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Table 1. 0 Spectral actual color temperature value and contrast error for each substrate
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Table 1. 0 Spectral actual color temperature value and contrast error for each substrate
Substrate Color temperatureof 4876 K Color temperatureof 9333 K
Actualvalue /K Error /K Actualvalue /K Error /K
K9 4876.33 +0.33 9333.00 1.30
PMMA 4878.01 +2.01 9337.18 +4.18
PC 4872.43 -3.90 9332.29 -0.71

Table 1. Three-band area ratio and color temperature corresponding to each transmittance
View table
Table 1. Three-band area ratio and color temperature corresponding to each transmittance
Transmittance /% A_380-550∶A_550-640∶A_640-780 Color temperature /K
96 16.32∶8.64∶13.44 6086.42
48 8.16∶4.32∶6.72 6086.42
4 0.68∶0.36∶0.56 6086.42

Table 2. Gaussian function coefficient values after spectral curve fitting for i=1--3

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Table 2. Gaussian function coefficient values after spectral curve fitting for i=1--3

Group No.	a_i			b_i			c_i
Group No.	i=1	i=2	i=3	i=1	i=2	i=3	i=1	i=2	i=3
First group	8.40	-40.90	-169.50	702.00	707.30	770.00	15.05	30.55	45.40
Second group	30.19	14.05	18.38	403.80	616.70	715.50	53.50	76.91	119.20
Third group	105.80	57.45	-2.05	410.90	574.00	680.00	69.00	19.00	0.50
Fourth group	48.90	48.50	95.50	504.00	608.70	387.80	63.80	14.90	125.10
Fifth group	42.84	19.81	31.40	389.60	488.70	785.70	26.89	29.82	99.55
Sixth group	99.80	55.30	51.90	395.80	539.30	565.10	92.50	30.80	17.50

Table 3. Gaussian function coefficient values after spectral curve fitting for i=4--6

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Table 3. Gaussian function coefficient values after spectral curve fitting for i=4--6

Group No.	a_i			b_i			c_i
Group No.	i=1	i=2	i=3	i=1	i=2	i=3	i=1	i=2	i=3
First group	12.20	1700.00	-1100.00	617.60	526.00	856.00	23.23	829.50	50.15
Second group	6.54			556.80			51.79
Third group	-1.20	51.10	101.00	626.00	556.00	680.00	1.50	10.90	81.20
Fourth group	48.30	38.40	49.30	588.60	621.60	556.40	24.00	9.30	39.80
Fifth group	9.58	26.67	10.96	689.70	527.00	462.50	60.43	46.93	19.40
Sixth group	61.30	42.80		494.20	580.50		51.80	10.40

Table 4. Area ratios of six groups of functions and their corresponding color temperatures

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Table 4. Area ratios of six groups of functions and their corresponding color temperatures

Group No.	A_380-550∶A_550-640∶A_640-780	Normalized result	Color temperature/K
First group	9.71∶32.31∶96.51	1∶3.33∶9.94	2300.2
Second group	26.68∶20.24∶29.46	1∶0.76∶1.1	3724.2
Third group	15.90∶15.02∶10.60	1∶0.94∶0.67	5164.5
Fourth group	16.70∶7.48∶0.06	1∶0.45∶0.004	7160.1
Fifth group	45.20∶7.72∶33.68	1∶0.17∶0.74	9644.6
Sixth group	17.10∶3.6∶0.002	1∶0.21∶0.0001	11528.5

Table 5. Average transmittance corresponding to bases with different refractive indexes
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Table 5. Average transmittance corresponding to bases with different refractive indexes
Substrate material n' Transmittance /%
PC 1.591 90.11
PMMA 1.490 92.54
K9 1.516 91.92

Table 6. Average transmittance, three-band area ratios, and normalized color temperatures of single-sided antireflection coatings on bases with different refractive indexes
View table
Table 6. Average transmittance, three-band area ratios, and normalized color temperatures of single-sided antireflection coatings on bases with different refractive indexes
n Transmittance /% A_380-550∶A_550-640∶A_640-780 Color temperature /K
1.591 99.53 1.91∶1∶1.53 3279.7
1.490 99.47 1.93∶1∶1.55 3289.5
1.516 99.51 1.93∶1∶1.54 3285.9

Table 7. Normalized spectral area ratios corresponding to three bands for 4876 K/9333 K
View table
Table 7. Normalized spectral area ratios corresponding to three bands for 4876 K/9333 K
Color temperature /K A_380-550∶A_550-640∶A_640-780
4876 1∶2.38∶3.85
9333 1.44∶1.05∶1

Table 8. Spectral transmittance ratios corresponding to three bands for 4876 K/9333 K
View table
Table 8. Spectral transmittance ratios corresponding to three bands for 4876 K/9333 K
Color temperature /K T_380-550∶T_550-640∶T_640-780
4876 40.9∶86.5∶89.9
9333 52.3∶33.6∶20.7

Table 9. Coating process parameters for Ti₃O₅/ SiO₂

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Table 9. Coating process parameters for Ti₃O₅/ SiO₂

Material	Substratetemperature /℃	Degree ofvacuum /Pa	Evaporationrate /(nm·s^-1)	Flow rate ofO₂ /(mL·min^-1)	Screen voltage ofion source /V	Current ofion beam /mA
Ti₃O₅	95	2.0×10^-3	0.3	22	400	200
SiO₂	95	8.0×10^-3	0.7	20	400	200

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Xiuhua Fu, Yixin Chen, Dongmei Liu, Jing Zhang, Cheng Lu. Development of Optical Films Based on Head-Mounted Display to Compensate for Gender Differences in Color Temperature of VR[J]. Acta Optica Sinica, 2021, 41(3): 0331001

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Paper Information

Category: Thin Films

Received: Jul. 31, 2020

Accepted: Sep. 15, 2020

Published Online: Feb. 28, 2021

The Author Email: Chen Yixin (486393727@qq.com)

DOI:10.3788/AOS202141.0331001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. 0 Spectral actual color temperature value and contrast error for each substrate

Table 1. 0 Spectral actual color temperature value and contrast error for each substrate

Table 1. Three-band area ratio and color temperature corresponding to each transmittance

Table 1. Three-band area ratio and color temperature corresponding to each transmittance

Table 2. Gaussian function coefficient values after spectral curve fitting for i=1--3

Table 2. Gaussian function coefficient values after spectral curve fitting for i=1--3

Table 3. Gaussian function coefficient values after spectral curve fitting for i=4--6

Table 3. Gaussian function coefficient values after spectral curve fitting for i=4--6

Table 4. Area ratios of six groups of functions and their corresponding color temperatures

Table 4. Area ratios of six groups of functions and their corresponding color temperatures

Table 5. Average transmittance corresponding to bases with different refractive indexes

Table 5. Average transmittance corresponding to bases with different refractive indexes

Table 6. Average transmittance, three-band area ratios, and normalized color temperatures of single-sided antireflection coatings on bases with different refractive indexes

Table 6. Average transmittance, three-band area ratios, and normalized color temperatures of single-sided antireflection coatings on bases with different refractive indexes

Table 7. Normalized spectral area ratios corresponding to three bands for 4876 K/9333 K

Table 7. Normalized spectral area ratios corresponding to three bands for 4876 K/9333 K

Table 8. Spectral transmittance ratios corresponding to three bands for 4876 K/9333 K

Table 8. Spectral transmittance ratios corresponding to three bands for 4876 K/9333 K

Table 9. Coating process parameters for Ti3O5/ SiO2

Table 9. Coating process parameters for Ti3O5/ SiO2

Table 9. Coating process parameters for Ti₃O₅/ SiO₂

Table 9. Coating process parameters for Ti₃O₅/ SiO₂