激光与光电子学进展, 2020, 57 (13): 131204, 网络出版: 2020-07-09 复制并引用该论文  本文已被引 2 次  被引通知

图 & 表

图 1. 变焦光学系统示意图。(a) EFFL为19 mm;(b) EFFL为35 mm;(c) EFFL为50 mm;(d) EFFL为100 mm

Fig. 1. Schematic diagram of zoom optical system. (a) EFFL is 19 mm; (b) EFFL is 35 mm; (c) EFFL is 50 mm; (d) EFFL is 100 mm;

下载图片 查看原文

图 2. 多重焦距组态的MTF曲线。(a) EFFL为19 mm;(b) EFFL为35 mm;(c) EFFL为50 mm;(d) EFFL为100 mm

Fig. 2. MTF curves for multiple focal length configuration. (a) EFFL is 19 mm; (b) EFFL is 35 mm; (c) EFFL is 50 mm; (d) EFFL is 100 mm

下载图片 查看原文

图 3. 变焦镜头光机结构

Fig. 3. Opto-mechanical structure of zoom lens

下载图片 查看原文

图 4. 变焦镜头有限元模型

Fig. 4. Finite element model of zoom lens

下载图片 查看原文

图 5. 温度为-20 ℃时变焦镜头的刚体位移云图。(a)前固定组;(b)变焦组;(c)补偿组;(d)后固定组;(e)整机

Fig. 5. Rigid body displacement cloud diagram of the zoom lens at temperature of -20 ℃. (a) Front fixed group; (b) zoom group; (c) compensation group; (d) posterior fixation group; (e) machine

下载图片 查看原文

图 6. 后固定组初始结构设计

Fig. 6. Initial structural design of rear fixed component

下载图片 查看原文

图 7. 采用挠性压圈结构的固定组结构设计

Fig. 7. Fixed group structure design with flexible pressure ring structure

下载图片 查看原文

图 8. 挠性压圈关键结构尺寸参数。(a)压圈;(b)隔圈

Fig. 8. Key structure parameters of flexible pressure ring. (a) Pressure ring;(b) space ring

下载图片 查看原文

图 9. 采用挠性压圈的后固定组有限元模型

Fig. 9. Finite element model of rear fixed component adopted flexible pressure ring

下载图片 查看原文

图 10. 采用挠性压圈消热差后固定组的位移云图

Fig. 10. Displacement cloud diagram of real fixed group athermalization with flexible pressure ring

下载图片 查看原文

图 11. 热弹性轴向刚体位移随温度的变化

Fig. 11. Variation of thermoelastic axial rigid body displacement with temperature

下载图片 查看原文

图 12. 变焦镜头的光学MTF曲线。(a)温度为-20 ℃,EFFL为99 mm;(b)温度为50 ℃,EFFL为99 mm;(c)温度为-20 ℃,EFFL为50 mm;(d)温度为50 ℃,EFFL为50 mm;(e)温度为-20 ℃,EFFL为19 mm;(f)温度为50 ℃,EFFL为19 mm

Fig. 12. Optical MTF curve of zoom lens. (a) Temperature is -20 ℃, EFFL is 99 mm; (b) temperature is 50 ℃, EFFL is 99 mm; (c) temperature is -20 ℃, EFFL is 50 mm; (d) temperature is 50 ℃, EFFL is 50 mm; (e) temperature is -20 ℃, EFFL is 19 mm; (f) temperature is 50 ℃, EFFL is 19 mm

下载图片 查看原文

图 13. 波前差随温度变化的曲线。(a) PV随温度变化的曲线;(b) RMS随温度变化的曲线

Fig. 13. Curve of wavefront difference with temperature. (a) Curve of PV with temperature; (b) curve of RMS with temperature

下载图片 查看原文

图 14. 光学设备温度应力可靠性实验平台

Fig. 14. Experimental platform for reliability of optical equipment temperature stress

下载图片 查看原文

图 15. 分辨率板图像。(a) 20 ℃;(b) -20 ℃;(c) 50 ℃

Fig. 15. Image of resolution board. (a) 20 ℃; (b) -20 ℃; (b) 50 ℃

下载图片 查看原文

表 1镜头材料参数

Table1. Material parameters of the lens

Material Elastic modulus /MPa Density /(10-6 kg·mm-3) Poisson's ratio Coefficient oflinear expansion /(10-6 ℃) Titanium alloy 114000.00 4.40 0.29 8.90 RTV 701.00 1.28 0.47 236.00 ZF52 53730.00 5.53 0.25 8.90 QK7 63550.00 2.39 0.26 9.30 LAK9 84340.00 4.02 0.29 7.60 ZK9 89960.00 3.75 0.28 7.20 ZF6 52350.00 4.77 0.25 9.20 ZF50 58990.00 3.97 0.25 8.70 H-LAK3 88730.00 3.87 0.29 7.90 ZF7L 55000.00 4.97 0.24 8.90

查看原文

表 2Zernike多项式与Sediel像差的对应关系

Table2. Correspondence between Zernike polynomial and Sediel aberration

Order Polynomial Physicalmeaning Diagramform 1 1 migration 2 ρcos θ X tilt 3 ρsin θ Y tilt 4 2ρ2-1 defocus 5 ρ2cos 2θ 0° or 90° astigmatism 6 ρ2sin 2θ ±45° astigmatism 7 (3ρ3-2ρ)cos θ X coma

查看原文

表 3长焦组态变焦镜头刚体位移/旋转的变化量

Table3. Variation of rigid body displacement / rotation of telephoto zoom lens

Serial number T1 T2 T3 R1 R2 R3 1 5.524×10-7 7.332×10-7 3.752×10-4 5.770×10-9 1.162×10-8 7.992×10-8 2 2.157×10-7 4.826×10-7 5.523×10-5 6.627×10-9 4.157×10-9 6.604×10-8 3 6.687×10-7 5.542×10-7 7.775×10-5 4.423×10-9 5.514×10-9 4.607×10-8 … … … …… … … … 22 8.814×10-6 7.775×10-6 7.154×10-3 1.283×10-8 2.176×10-9 1.451×10-9 23 6.523×10-6 3.351×10-5 5.183×10-3 5.073×10-9 4.518×10-9 2.951×10-9 24 7.704×10-6 4.218×10-6 5.172×10-3 9.153×10-9 1.357×10-9 9.843×10-8 25 4.056×10-6 6.450×10-6 6.107×10-3 8.423×10-9 1.543×10-9 4.862×10-8

查看原文

表 4挠性压圈的后固定组材料参数

Table4. Material parameters of the flexible pressure ring of the rear fixed component

Material Elastic modulus /MPa Density /10-6 (kg·mm-3) Poisson's ratio Coefficient of linearexpansion /10-6 ℃ Beryllium copper 132000 8.42 0.33 16.88 SUS306 187000 8.13 0.31 23.70

查看原文

表 5温度为-20 ℃时前固定组各镜面的Zernike系数

Table5. Zernike coefficient of each mirror in the anterior fixation group at temperature of -20 ℃

Serialnumber First lens Second lens Third lens First surface Second surface First surface Second surface First surface Second surface 1 -7.08×10-4 -6.93×10-4 -3.11×10-4 -3.08×10-4 4.62×10-4 -3.79×10-4 2 5.68×10-4 3.16×10-4 2.93×10-4 4.28×10-4 -1.84×10-3 -2.64×10-3 3 -7.92×10-4 -8.31×10-4 -0.93×10-3 -8.99×10-4 3.99×10-3 9.13×10-4 4 -2.27×10-3 -3.68×10-3 4.47×10-4 8.52×10-4 -8.87×10-6 1.08×10-5 5 -7.22×10-4 -5.44×10-4 7.78×10-5 6.92×10-4 1.81×10-6 2.53×10-6 6 6.99×10-4 3.59×10-4 -5.19×10-5 -3.15×10-5 -1.01×10-6 1.18×10-6 7 4.42×10-3 4.40×10-3 1.49×10-4 3.44×10-4 -1.51×10-5 -5.61 ×10-5 8 1.09×10-3 9.93×10-4 -4.00×10-5 -3.46×10-5 -5.83×10-5 -4.68×10-5 9 7.62×10-4 8.52×10-4 6.47×10-6 6.19×10-6 -3.23×10-5 -4.03×10-5

查看原文

表 6温度为50 ℃时前固定组各镜面的Zernike系数

Table6. Zernike coefficient of each mirror in the anterior fixation group at temperature of 50 ℃

Serialnumber First lens Second lens Third lens Second surface First surface Second surface Second surface First surface Second surface 1 -0.18×10-3 -0.26×10-3 -6.23×10-4 -1.09×10-3 1.40×10-5 2.16×10-7 2 -2.20×10-4 4.37×10-5 -8.73×10-4 -4.77×10-4 -2.29×10-3 -3.33×10-4 3 5.62×10-5 7.10×10-5 -8.88×10-4 2.24×10-3 -8.25×10-5 -4.47×10-6 4 -3.31×10-3 -1.89×10-3 -6.62×10-6 4.47×10-6 -2.29×10-4 -1.06×10-5 5 2.57×10-6 8.36×10-5 -6.66×10-5 -7.80×10-4 -8.88×10-7 -6.63×10-7 6 -2.52×10-5 -2.76×10-5 -2.77×10-5 -4.42×10-5 3.77×10-5 -1.52×10-6 7 -8.62×10-3 -8.47×10-3 -3.97×10-6 -4.43×10-6 7.96×10-5 -1.47×10-6 8 -3.33×10-3 -4.82×10-4 2.64×10-5 1.58×10-5 5.51×10-7 5.39×10-7 9 5.97×10-4 1.62×10-4 -7.64×10-6 -1.27×10-6 -7.04×10-7 -2.28×10-7

查看原文

表 7-20 ℃和50 ℃温度载荷下Seidel像差系数

Table7. Seidel aberration coefficient at temperature load of -20 ℃ and 50 ℃

Seidel coefficient Zernike polynomial Value (-20 ℃) Value (50 ℃) apiston 2Z1-Z4+Z91+4ε2+ε4(1-ε2)2 -5.70×10-3 -6.33×10-3 atilt_x 2Z2(1+ε2)12-2Z7(1+ε2+ε4)(1-ε2)[(1+ε2)(1+4ε2+ε4)]12 1.08×10-3 -8.53×10-4 atilt_y 2Z2(1+ε2)12-2Z8(1+ε2+ε4)(1-ε2)[(1+ε2)(1+4ε2+ε4)]12 -1.54×10-4 -1.00×10-3 adefocus 2[2Z4/(1-ε2)-6Z9(1+ε2)/(1-ε2)2] 5.79×10-3 1.72×10-3 asa 12Z9/(1-ε2)2 2.82×10-3 2.21×10-3 acoma_x 6(1+ξ2)Z7(1-ξ2)(1+ξ2)(1+4ξ2+ξ4) 6.68×10-4 5.36×10-4 acoma_y 6(1+ξ2)Z8(1-ξ2)(1+ξ2)(1+4ξ2+ξ4) 7.59×10-4 5.18×10-4

查看原文

杜伟峰, 刘永志, 高文杰, 胡雄超. 光电对抗平台变焦镜头被动消热差结构设计与光机热集成分析[J]. 激光与光电子学进展, 2020, 57(13): 131204. Weifeng Du, Yongzhi Liu, Wenjie Gao, Xiongchao Hu. Analysis of Passive Athermalization Structure Design and Integrated Opto-Mechanical-Thermal of Zoom Lens of Photoelectric Countermeasure Platform[J]. Laser & Optoelectronics Progress, 2020, 57(13): 131204.