====Geometric Optics====
  * [[en:yanding:imaging_basics:optics:geometric_optics:law_of_rectilinear_propagation|Law of Rectilinear Propagation]]
  * [[en:yanding:imaging_basics:optics:geometric_optics:law_of_refraction|Law of Refraction]]
  * [[en:yanding:imaging_basics:optics:geometric_optics:law_of_reflection|Law of Reflection]]
  * [[en:yanding:imaging_basics:optics:geometric_optics:entrance_pupil|Entrance Pupil]]
  * [[en:yanding:imaging_basics:optics:geometric_optics:depth_of_field|Depth of Field]]
  * [[en:yanding:imaging_basics:optics:geometric_optics:fisheye_entrance_pupil|Fisheye Entrance Pupil]]