New posts in Geometric Optics

Could a computer unblur the image from an out of focus microscope?

Why does this wavemeter use $3$ mirrors to turn light $180^\circ$ instead of just $2$?

Why is snow white when water has no color?

What is the "tangential" distortion of OpenCV actually tangential to?

What is the physical meaning of magnifying power of a telescope?

Do light waves precisely follow null geodesic paths in General Relativity?

Difference between convexo-concave and concavo-convex lenses?

Infinite total internal reflection

If a lens focuses all incoming light to a point, how do we get 2D images?

Calculating light's lateral shift in a glass slab