Geometric optics
Use rays and interfaces to model reflection, refraction and image formation when wavelength effects are negligible.
Side 183Side Studies / Research
Subject
Optics
Purpose
Light studied through propagation, reflection, refraction, interference, diffraction, polarization and imaging across ray and wave descriptions.
Structure
05 movesMechanism mapV0
Entities → interactions → mechanisms → scales → measurement
Choose the light model that matches the scale.
Optics becomes coherent when geometric rays, electromagnetic waves and quantum descriptions are treated as scale-dependent models rather than competing definitions of light.
Wave propagation
Treat phase, wavelength and boundary conditions explicitly when coherence and interference matter.
Interference & diffraction
Understand pattern formation from superposed wave amplitudes and finite apertures.
Polarization
Track the orientation structure of electromagnetic waves and its transformation by materials and interfaces.
Imaging & resolution
Connect lenses, apertures and detectors to limits on spatial information and contrast.
Keep the boundaries visible.
These separations prevent nearby ideas from collapsing into one another before the subject is understood.
ray ≠ physical trajectory of a photon
brightness ≠ coherence
magnification ≠ resolution
Questions that organize the Side.
Use these to test whether the model is becoming explanatory rather than merely familiar.
When is geometric optics an adequate approximation to wave propagation?
Which limits on imaging are imposed by diffraction rather than engineering imperfection?
How do material properties alter phase, amplitude and polarization?
What should carry weight here?
Tie optical models to wavelength, coherence, aperture and material response, and distinguish detector limitations from fundamental propagation limits.