Design of solar-blind ultraviolet warning optical system with large FOV and large relative aperture

Guoxian Zheng; Jianchao Jiao; Yue Yu; Yun Su; Yi Tang; Wei Nian; Jianfeng Liu

doi:10.3788/IRLA20200260

Journals >Infrared and Laser Engineering >Volume 50 >Issue 2 >Page 20200260 > Article

Infrared and Laser Engineering
Vol. 50, Issue 2, 20200260 (2021)

Design of solar-blind ultraviolet warning optical system with large FOV and large relative aperture

Guoxian Zheng¹, Jianchao Jiao¹, Yue Yu¹, Yun Su¹, Yi Tang², Wei Nian¹, and Jianfeng Liu¹

Author Affiliations

¹Beijing Institute of Mechanics & Electricity, Beijing 100094, China

²School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

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DOI: 10.3788/IRLA20200260 Cite this Article

Guoxian Zheng, Jianchao Jiao, Yue Yu, Yun Su, Yi Tang, Wei Nian, Jianfeng Liu. Design of solar-blind ultraviolet warning optical system with large FOV and large relative aperture[J]. Infrared and Laser Engineering, 2021, 50(2): 20200260 Copy Citation Text

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Fig. 1. [in Chinese]

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Fig. 2. [in Chinese]

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Fig. 3. [in Chinese]

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Fig. 4. [in Chinese]

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Fig. 5. [in Chinese]

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Parameter	Proposed	Ref. [4]	Ref. [5]	Ref. [6]	Ref. [7]
Spectrum/nm	255-275	240-280	240-280	260-270	254-272
FOV/(°)	130	8	60	10	120
Focal lenth/mm	9	150	34	100	6.95
Relative aperture	1.5∶1	1∶3	1∶3	1∶2	1∶2
Nyquist frequency	4	20	21.3	10	-
MTF	>0.36	>0.7	-	>0.4	-
Number of lenses	8	5	5	6	7
Material	Silica	Silica, CAF2	Silica, CAF2	Silica, CAF2	Silica, CAF2
Surface shape	Sphere	Sphere	2 asphere,1 binary	Sphere	-

Table 1. [in Chinese]

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Parameter	Design requirements
Spectrum/μm	0.255-0.275
Aperture/mm	≥6
FOV/(°)	≥130
Overall length/mm	≤110
BFL（including detector window）/mm	≥7.5
Transmittance (without filter)	≥0.92
MTF/lp·mm⁻¹	≥0.3@4
Illumination uniformity	≤10%
RMS scattering radius/μm	<125

Table 2. [in Chinese]

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Field/(°)	0	30	40	50	58	65
RMS radius/μm	108.3	92.6	90.7	96.6	106.8	108.2

Table 3. [in Chinese]

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