Comparison of Grating Constant Measurement Methods for Plain Rainbow Holographic Materials

Min Huang; Yonghui Xi; Xiu Li; Chunli Guo; Ruili He

doi:10.3788/AOS201939.1033003

Journals >Acta Optica Sinica >Volume 39 >Issue 10 >Page 1033003 > Article

Acta Optica Sinica
Vol. 39, Issue 10, 1033003 (2019)

Comparison of Grating Constant Measurement Methods for Plain Rainbow Holographic Materials

Min Huang^**, Yonghui Xi, Xiu Li^*, Chunli Guo, and Ruili He

Author Affiliations

School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China

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DOI: 10.3788/AOS201939.1033003 Cite this Article Set citation alerts

Min Huang, Yonghui Xi, Xiu Li, Chunli Guo, Ruili He. Comparison of Grating Constant Measurement Methods for Plain Rainbow Holographic Materials[J]. Acta Optica Sinica, 2019, 39(10): 1033003 Copy Citation Text

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Fig. 1. Pictures of rainbow holographic master masks. (a) Light pillar rainbow holographic master masks; (b) plain rainbow holographic master masks

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Microstructures of different plain rainbow holographic materials with enlargement of 24000 times. (a)-(d) Planar figures of micro-structures of plain rainbow holographic master masks A, B, C, and D; (e)-(h) solid figures of micro-structures of plain rainbow holographic master masks A, B, C, and D

Fig. 2. Microstructures of different plain rainbow holographic materials with enlargement of 24000 times. (a)-(d) Planar figures of micro-structures of plain rainbow holographic master masks A, B, C, and D; (e)-(h) solid figures of micro-structures of plain rainbow holographic master masks A, B, C, and D

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Fig. 3. Visual appearance and microstructures at different positions of light pillar rainbow holographic material. (a) Visual appearance; (b) microstructures at different positions

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Fig. 4. Diagrams of geometric measurement conditions of different spectrophotometers. (a) Multi-angle spectrophotometer; (b) 45/0 spectrophotometer

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Fig. 5. Measurement results of multi-angle spectrophotometer in condition of 45/0. (a)-(d) Spectral intensity from plain rainbow holographic master masks A, B, C, and D in the directions of 0°-45°; (e)-(h) spectral intensity from plain rainbow holographic master masks A, B, C, and D in the directions of 50°-90°

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Fig. 6. Results of SpectroEye measurement for each plain rainbow holographic master mask. (a) Mask A; (b) mask B; (c) mask C; (d) mask D

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$Diagram of diffraction direction of incident light[8]$

Fig. 7. Diagram of diffraction direction of incident light^[8]

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Fig. 8. Results of the SpectroEye measurement for the light pillar rainbow holographic master masks

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Fig. 9. Spectral power distribution of scanner’s light source

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Fig. 10. Schematic of scanning optical path of scanner

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Fig. 11. Colors of different plain rainbow holographic master masks versus rotation angle. (a) Mask A; (b) mask B; (c) mask C; (d) mask D

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Fig. 12. Relationship between grating constant and incident angle for plain rainbow holographic materials

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Plain rainbow master mask	λ₁	d₁	λ₂	d₂
A	0.69-0.71	0.99±0.01	0.48-0.49	0.97±0.01
B	0.60-0.62	0.87±0.02	0.38-0.40	0.78±0.01
C	0.59-0.60	0.84±0.01	0.41-0.42	0.83±0.01
D	0.68-0.70	0.98±0.01	0.49-0.50	0.99±0.01

Table 1. Grating constants corresponding to different peak wavelengthsμm

Plain rainbow master mask	d /μm	Color
Plain rainbow master mask	d /μm	0°-5°	5°-40°	40°-45°	50°-80°	85°-90°
A (D)	1.01-1.05	Blue	Rainbow	Red+Green	Rainbow	Blue
B (C)	0.84-0.85	Blue	Rainbow	Blue+Green	Rainbow	Blue

Table 2. Scanning color informations of different plain rainbow holographic master masks

Plain rainbow master mask	d /μm	Diffraction maximum wavelength /nm
Plain rainbow master mask	d /μm	0°-5° (85°-90°)	40°-45°
A	1.00	406.7-484.8	575.2-685.6
B	0.85	345.7-412.1	488.8-583.1
C	0.85	345.7-412.1	488.8-583.1
D	1.00	406.7-484.8	575.2-685.6

Table 3. Results of diffraction maximum wavelength of different plain rainbow holographic master masks

Waveband /nm	Color sense
380-470	Blue
470-500	Cyan
500-530	Green
530-560	Yellow-Green
560-590	Yellow
590-620	Orange
620-700	Red

Table 4. Color senses corresponding to different wavebands

Plain rainbow master mask	i /(°)	Grating constant /μm			d(range) /μm	d /μm
		0° (position)	45° (position)
		Blue(380-470 nm)	Yellow-Green+Yellow(530-590 nm)	Blue-Green+Green(470-530 nm)
A, D	24	0.93-1.16	0.92-1.03	—	0.93-1.03	0.98±0.05
A, D	29	0.78-0.97	0.77-0.86	—	0.93-1.03	0.98±0.05
B, C	24	NaN	—	0.82-0.92	0.82-0.92	0.87±0.05
B, C	29	0.78-0.97	—	0.69-0.77	0.82-0.92	0.87±0.05

Table 5. Calculated grating constants of plain rainbow holographic materials in directions of 0° and 45°

Position	i /(°)	d
Position	i /(°)	0.85 μm	0.95 μm	1.0 μm	1.1 μm	1.2 μm	1.3 μm
0°	25	$\bar{0.359}$	0.402	0.423	0.465	0.507	0.549
0°	30	0.425	0.475	0.500	0.550	0.600	0.650
45°	25	0.508	0.568	0.598	0.657	0.717	0.778
45°	30	0.601	0.672	0.707	0.778	0.424	0.460

Table 6. Grating constants of plain rainbow holographic master masks at different wavelengths

Min Huang, Yonghui Xi, Xiu Li, Chunli Guo, Ruili He. Comparison of Grating Constant Measurement Methods for Plain Rainbow Holographic Materials[J]. Acta Optica Sinica, 2019, 39(10): 1033003

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