Isochromatic sentence example
- Bertin has shown that a useful picture of the form of these curves may be obtained by taking sections, parallel to the plate, of a surface that he calls the "isochromatic surface," and that is the locus of points on the crystal at which the relative retardation of two plane waves passing simultaneously through a given point and travelling in the same direction has an assigned value.
- The isochromatic lines, unless the dispersion be excessive, follow in the main the course of the curves of constant retardation, and the principal lines of like polarization are with a crossed polarizer and analyser dark brushes, that in certain cases are fringed with colour.
- Two different types of fringes can be observed in photoelasticity: isochromatic and isoclinic fringes.
- A standard plane polariscope shows both isochromatic and isoclinic fringes, and this makes quantitative stress analysis difficult.