1、 几何光学是以光的直线传播性质为基础，研究光在透明介质中传播规律的学科。光 的 直 线 传 播 定 律光 的 独 立 传 播 定 律反射和折射定律几何光学的理论基础1Section 1. Refraction at a Spherical Surface Section 2. The lensSection 3. The eye Section 4. The Magnifier and MicroscopeSection 5. The Special Microscope and Fiberscopes21 . Refraction at a Spherical Surface2 . Coax
2、ial SystemSection 1. Refraction at a Spherical Surface 3systemlawn1 n2u vobject imagerC球面折射系统1.Refraction at a spherical surface Object distance Image distance refractive indexradius of curvature4n1 n2u vobject imagerCi1 i2APParaxial condition, i1 i2 analyze球面折射系统1.Refraction at a Spherical Surface
3、5discussCondition： Paraxial beamWe adopt the following rules ：1、 When the object is on the same side of the refracting surface as the incoming light ,the object distance u is positive ;otherwise it is negative.球面折射系统1.Refraction at a Spherical Surface 2、 When the image is on the same side of the ref
4、racting surface as the outgoing light ,the image distance v is positive ;otherwise it is negative. 61.Refraction at a spherical surface 3、 When the center of curvature C is on the same side as the outgoing light ,the radius of curvature is positive ;otherwise it is negative.Dioptric power(D)R: meter
5、sA quantity of describing the ability of refraction For the refractive system : (diopter)7n1 n2CrPrimary focal pointF1f1Primary focal length1.Refraction at a Spherical Surface 8n1 n2Crsecondary focal point F2f2secondary focal length球面折射系统9focusPrimary focal pointPrimary focal lengthSecondary focal pointSecondary focal lengthImage is at the infinityObject is at the infinityFocaldegree 球面折射系统(diopter-D)10
