Design and Simulation of Long-Wavelength Infrared Microscopic Imaging Optical System

Table 1. Parameters index of long-wavelength infrared microscopic optical system
View table
Table 1. Parameters index of long-wavelength infrared microscopic optical system
Item Value
Working wave range /μm 15-35
Zoom ratio 10×
NA 0.25
Focal length /mm 14
Image height /mm 1
Working length /mm <10
Operating temperature /℃ [-20,40]

Table 2. Optical and thermal property parameters of infrared optical materials

View table

Table 2. Optical and thermal property parameters of infrared optical materials

Material	KRS-5	CsBr	KI	CsI	KBr
Wave band /μm	0.5-45	0.2-40	0.3-31	0.2-60	0.2-34
Refractive index	2.30	1.62	1.56	1.70	1.45
Coefficient of temperature-refractive index /(10^-6 ℃^-1)	-235	-79	-50	-85	-40
Thermal expansivity /(10^-6 ℃^-1)	58	48	43	50	43
Light transmittance /%	70	90	90	90	90

Table 3. Initial structure parameters used for simulation
View table
Table 3. Initial structure parameters used for simulation
Surface Radius of curvature /mm Interval /mm Glass
1 155.000
2 16.982 2.700 CsBr
3 -13.092 1.800 KRS-5
4 -102.090 17.550
5 8.356 2.900 CsBr
6 -6.252 1.400 KRS-5
7 -15.488 7.203
8 10.000 0.170 KRS-5
9 11.118 7.200

Table 4. Optimized structure parameters of long wave infrared microscopic imaging optical system
View table
Table 4. Optimized structure parameters of long wave infrared microscopic imaging optical system
Surface Radius of curvature /mm Interval /mm Glass
1 115.385
STO 16.859
2 -28.747 4.000 CsBr
3 13.685 14.096 KRS-5
4 -45.489 4.337
5 -7.199 4.000 CsBr
6 9.185 4.926 KRS-5
7 57.718 4.006
8 11.428 5.409 KRS-5
9 27.737 4.027

Tools

Get Citation

Copy Citation Text

Yu Wang, Yangyang Xu, Aiyun Liu, Wangzhou Shi, Gujin Hu, Hao Mu, Changyi Pan, Huiyong Deng, Ning Dai. Design and Simulation of Long-Wavelength Infrared Microscopic Imaging Optical System[J]. Acta Optica Sinica, 2020, 40(6): 0622001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Optical Design and Fabrication

Received: Aug. 15, 2019

Accepted: Dec. 6, 2019

Published Online: Mar. 6, 2020

The Author Email: Hu Gujin (hugj@shnu.edu.cn), Deng Huiyong (hydeng@mail.sitp.ac.cn)

DOI:10.3788/AOS202040.0622001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Parameters index of long-wavelength infrared microscopic optical system

Table 1. Parameters index of long-wavelength infrared microscopic optical system

Table 2. Optical and thermal property parameters of infrared optical materials

Table 2. Optical and thermal property parameters of infrared optical materials

Table 3. Initial structure parameters used for simulation

Table 3. Initial structure parameters used for simulation

Table 4. Optimized structure parameters of long wave infrared microscopic imaging optical system

Table 4. Optimized structure parameters of long wave infrared microscopic imaging optical system