Definition of Newton's rings

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Sheetak - Cooling at your Fingertip 11/24 LB

Photonics Dictionary

Newton's rings: The series of rings or bands formed when light beams reflected from two polished, adjacent surfaces, placed together with a thin film of air between them, interfere. By counting these bands from the point of actual contact, the departure of one surface from the other is determined. The regularity of the fringes maps out the regularity of the distance between the two surfaces. This method usually is used to determine the fit of a surface under test to a standard surface of a test glass.

Meadowlark Optics - Wave Plates 6/24 MR 2024

Ohara Corp. - Optical Glass, Polish substrates 10-23

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