Objectives After working through this chapter, you should be able to: Explain what interference is and how it can be used to measure distances Explain what OCT stands for Explain…

Objectives After working through this chapter, you should be able to: Define a wavefront aberration Explain how aberrations can affect the resultant image Explain a Zernike polynomial Understand how aberrometers…

Objectives After working through this chapter, you should be able to: Explain why light can disperse through water if a mirror is introduced Explain dispersion Introduction Looking back over the…

Objectives After working through this chapter, you should be able to: Create a demonstration of polarisation by scattering Explain how polarisation by scattering works Introduction As a brief recap, in…

Objectives After working through this chapter, you should be able to: Explain the difference between polarised and unpolarised light Explain the process of polarisation by transmission Explain the process of…

Objectives After working through this chapter, you should be able to: Explain what an ‘optical instrument’ is Explain how cameras work Explain how Galilean, Keplerian and reflecting telescopes work Explain…

Objectives After working through this chapter, you should be able to: Explain the key features of a wave (wavelength, phase, amplitude) Explain the difference between phase difference and path difference…

Objectives After working through this chapter, you should be able to: Explain a solid angle Explain luminous flux, luminous intensity, illuminance and luminance Describe the two laws of illumination Explain…

Objectives After working through this chapter, you should be able to: Describe what a prism is Explain what the minimum angle of deviation is Define a ‘critical angle’ Discuss how…

Objectives After working through this chapter, you should be able to: Explain what focimetry is Discuss the principles underlying focimetry Be able to link focimetry with your understanding of spherical…