Microscopy

olympus U-PJ polarizer orientation plate SWHK eyepiece crosshair micrometer graticule alignment 2

olympusmicroscopymicroscopepetrographicpolarizing microscopeorientation plateupjeyepieceswhkcrosshairgraticulereticlemicrometerocularcirclebirefringenceinterference colouranisotropyanisotropiccrystal