It can be made by pointing a laser pointer directly to a mirror at low angle and observing the reflection behind the laser pointer. No convex or concave lens needed unlike the Newton's ring experiment we know.
So far, Newton's ring experiments and theories I read only involves a combination of concave and convex lenses, as Wikipedia says: Newton's rings is a phenomenon in which an interference pattern is created by the reflection of light between two surfaces—a spherical surface and an adjacent touching flat surface. The pattern is created by placing a very slightly convex curved glass on an optical flat glass. The two pieces of glass make contact only at the center, at other points there is a slight air gap between the two surfaces, increasing with radial distance from the center.
None of Newton's ring theories I read in Wikipedia or somewhere else involves a laser pointer and a mirror. Is there the same fundamental physics involved in both experiments? Or could it be a completely different thing?