Armstrong Optical and TRIOPTICS optics know how

Optics Know How
  1. Assembly of Optics
  2. Autocollimator
  3. Chief Ray Angle
  4. Chromatic Aberrations
  5. Collimator
  6. Telescope
  7. Depth of Focus
  8. Effective Focal Length
  9. EFL and Distortion
  10. Fno
  11. Field Curvature
  12. Measurement of Centering Errors
  13. MTF
  14. Vignetting