Research on Athermalization Design of Infrared Optical System Based on Wavefront Coding

Faqiang Zhang; Bin Feng; Hongshun Li

doi:10.3788/LOP202158.2208001

Laser & Optoelectronics Progress, Volume. 58, Issue 22, 2208001(2021)

Research on Athermalization Design of Infrared Optical System Based on Wavefront Coding

Faqiang Zhang^1、*, Bin Feng², and Hongshun Li³

Author Affiliations

¹Department of Optoelectronic Engineering, Xi'an Technological University, Xi'an, Shaanxi 710032, China

²Key Laboratory of Information Fusion Technology of Ministry of Education, School of Automation, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China

³Unit 31697 of PLA, Dalian, Shenyang 116103, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(10)

Fig. 1. Optical path structure of optical system. (a) Overall structure; (b) rays at focal plane

Download full size

Fig. 2. MTF curves of ordinary infrared optical systems at different temperatures. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃

Download full size

Fig. 3. Data processing diagram

Download full size

Fig. 4. Optical path structure of wavefront coding infrared optical system. (a) Overall structure; (b) rays at focal plane

Download full size

Fig. 5. MTF curves of wavefront coding infrared optical systems at different temperatures. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃

Download full size

Fig. 6. PSF of ordinary infrared optical system and wavefront coding infrared optical system. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃

Download full size

Fig. 7. Imaging results of ordinary infrared optical system and wavefront coding infrared optical system. (a) Imaging diagram of ordinary system; (b) intermediate diagram of coding system; (c) restoration diagram of coding system

Download full size

Table 1. Indicator of optical system
View table
Table 1. Indicator of optical system
Operating waveband /μm Focal length /mm FoV /(°) F Temperature /℃ Nyquist frequency /(lp·mm^-1)
8--12 45 10 1.5 -40-+60 20

Table 2. Structural parameters of optical system
View table
Table 2. Structural parameters of optical system
Surface No. Type Radius /mm Thickness /mm Glass
STO Standard 58.071 5.000 Ge
2 Standard 81.347 30.000
3 Standard -46.575 4.000 ZnSe
4 Standard -53.309 20.000
5 Standard 19.138 5.500 Ge
6 Standard 19.091 2.732
IMA Standard Infinity

Table 3. Structural parameters of wavefront coding infrared optical system
View table
Table 3. Structural parameters of wavefront coding infrared optical system
Parameter 1 2(STO) 3 4
Type Extended polynomial Standard Standard Standard
Radius /mm ∞∞ 58.07181.347 -46.575-53.309 19.13819.091
Thickness /mm 3.0 5.0 4.0 5.5
Glass ZnSe Ge ZnSe Ge
Semi-diameter 15.29 15.19 9.65 6.50

Tools

Get Citation

Copy Citation Text

Faqiang Zhang, Bin Feng, Hongshun Li. Research on Athermalization Design of Infrared Optical System Based on Wavefront Coding[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2208001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites