Summary of Aberrations
像差总结
In an ideal optical system, all rays of light from a point in the object plane would converge to the same point in the image plane, forming a clear image. The influences which cause different rays to converge to different points are called aberrations.
在理想光学系统中，来自物体平面中一点的所有光线都会汇聚到像平面中的同一点，形成清晰的像。使不同光线汇聚到不同点的影响被称为像差。
| Aberration
像差 | Character
特性 | Correction
修正 |
| 1. Spherical aberration
球面像差 | Monochromatic, on- and off- axis, image blur
单色、轴向和非轴向图像模糊 | Bending, high index, aspherics, gradient index, doublet
弯曲，高索引，非球面，梯度指数，双组分 |
| 2. Coma
2. 灾难 | Monochromatic, off-axis only, blur
单色、仅偏轴、模糊 | Bending, spaced doublet with central stop
弯曲的双联结构，中间有停止 |
| 3. Oblique astigmatism
斜向散光 | Monochromatic, off-axis blur
单色非轴向模糊 | Spaced doublet with stop
带有停止的双联 |
| 4. Curvature of field
场的曲率 | Monochromatic, off-axis
单色，非轴向 | Spaced doublet
空间双光束 |
| 5. Distortion
畸变 | Monochromatic, off-axis
单色，非轴向 | Spaced doublet with stop
带有停止的双联 |
| 6. Chromatic aberration
色像差 | Heterochromatic, on- and off-axis, blur
异色、轴上和轴外的模糊 | Contact doublet, spaced doublet
接触偶极子，分离偶极子 |
|
Index
Lens concepts
Reference
Meyer-Arendt
Ch 1.6
索引透镜概念 参考 Meyer-Arendt 第1.6章 |
