Designs for high performance PAL-based imaging systems

Dong Hui; Mei Zhang; Zheng Geng; Yunfang Zhang; Jingyuan Duan; Ancun Shi; Li Hui; Qing Fang; Yuliang Liu

doi:10.1364/AO.51.005310

Applied Optics
Vol. 51,
Issue 21,
pp. 5310-5317
(2012)
•https://doi.org/10.1364/AO.51.005310

Designs for high performance PAL-based imaging systems

Dong Hui, Mei Zhang, Zheng Geng, Yunfang Zhang, Jingyuan Duan, Ancun Shi, Li Hui, Qing Fang, and Yuliang Liu

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Dong Hui, Mei Zhang, Zheng Geng, Yunfang Zhang, Jingyuan Duan, Ancun Shi, Li Hui, Qing Fang, and Yuliang Liu, "Designs for high performance PAL-based imaging systems," Appl. Opt. 51, 5310-5317 (2012)

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Abstract

In this study, we investigate methods to optimize the design of a panoramic annular lens (PAL) system. The design details of a PAL surveillance system, an anamorphic PAL surveillance system, a phone camera with a PAL attachment, and a PAL endoscope system are described. All these designs are optimized using a standard optical software package (Zemax). The results combine very good image quality with a modulation transfer function above 0.3, which is within the cutoff frequency of sensor chips.

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PAL-Based System Design
PAL Block	Relay Lens
Set up initial structure	Set up initial structure
1. All spherical surfaces	1. Doublet lens is preferred
2. Reasonable structure	2. Aberrations are considered
3. Virtual image inside	3. Aperture stop location
4. Telecentric system
Combining/Optimizing
Analysis imaging quality

Surface No.	Radius of Curvature/mm	Surface Separation/mm	Glass
1	38.22	25.78	K9
2	$- 17.54$	$- 23.39$	MIRROR
3	$- 48.64$	23.39	MIRROR
4	$- 17.54$	0.72
5	$- 6.01$	1.50	ZF1
6	$- 10.04$	9.75
7	Infinity	0.10
8	7.02	2.30	BAK4
9	$- 3.93$	1.50	LAK3
10	$- 7.55$	1.00
11	4.54	2.00	K9
12	$- 6.40$	1.40	ZF4
13	7.03	3.14
15	Infinity	0.80	K9

Surface No.	Radius of Curvature/mm	Surface Separation/mm	Glass
1	39.00	26.00	K9
2	$- 17.50$	$- 24.00$	MIRROR
3	$- 37.00$	24.00	MIRROR
4	$- 17.50$	8.37
5	9.45	2.80
6a	28.65	0.95
7	$- 35.70$	1.20	ZF1
8a	7.02	11.37
9	Infinity	0.10
10	13.99	1.80	LAK52
11a	54.13	0.10
12	8.14	3.10	BAK5
13	$- 4.39$	2.00	ZBAF21
15	$- 9.80$	1.66
16	7.20	2.50	QK3
17	$- 4.39$	1.20	ZF11
18	11.64	1.60
19	Infinity	0.8	QK3

Surface No.	Radius of Curvature/mm	Surface Separation/mm	Glass
1	7.90	7.52	K9
2	$- 6.00$	$- 6.82$	MIRROR
3	$- 11.98$	6.82	MIRROR
4	$- 6.00$	1.27
5	$- 4.00$	0.80	ZF6
6	$- 7.65$	0.1
7	11.86	0.85	K9
8	$- 6.30$	2.61

Surface No.	Radius of Curvature/mm	Surface Separation/mm	Glass
1	4.00	4.10	PMMA
2	$- 2.05$	$- 3.93$	MIRROR
3	$- 14.02$	3.93	MIRROR
4	$- 2.05$	0.10
5	1.23	0.99	PMMA
6	$- 0.65$	1.00	PC
7	$- 1.07$	0.93

Abstract

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Applied Optics