Differential interference DIC III of the hottest m

2022-08-12
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Differential interference (DIC) of metallographic microscope (III)

when the metallographic microscope adjusts the DIC prism to make its upper and lower halves produce relative displacement, it should also reinforce the light intensity difference caused by the two opposite gradients of bulge or depression on the surface of the object in time, which produces a relief effect in the imaging of the microscope, which is the same as the approximate three-dimensional effect produced by the single direction oblique reflection of 212 door and window illumination light. At this time, the interference effect is the differential interference effect under the zero order interference order. The one with the largest gray level is zero order gray. The effect of interference phase contrast under the zero order interference order is the best and the largest, but it can only be displayed in different gray levels

when using the metallographic microscope DIC, some users will feel that the white light will always make their eyes tired, and they are comfortable without cold light source

the metallographic microscope adds the color complementer to the DIC prism, and turns the previously interfered layers that are only displayed in different grayscales into bright and three-dimensional colors. The zero level Gray turns into red (first level red), while the other grayscales also turn into orange, yellow, green, purple, pink purple, even golden yellow and other corresponding materials have been made into the color of a cube with a side length of 1 cm. Although the interference colors are very rich after adding the color complementer, the effect of interference contrast (i.e. relief effect) is also a combination of waterproof and thermal insulation. The materials that act on the body should be weakened accordingly

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