(surface texture) component of the instrument consisting of a probe, a stylus and an optinal stylus changing interface, mõõtevahendi komponent, mis koosneb optilisest autofookussüsteemist, automaatsest teravustamismehanismist ja elektroonilisest kontrollerist, system consisting of a probe and, where present, probe extensions, probe changing system, stylus, stylus changing system and stylus extensions, (point autofocus probe) component of the instrument consisting of an autofocus optical system, an autofocus mechanism and an electronic controller, mõõtesüsteem, mis koosneb mõõtepeast, selle mõõteulatusest, mõõtepea vahetussüsteemist, mõõtepea varbotsakust, varbotsaku vahetussüsteemist ja varbotsaku pikendusest, (surface texture, focus variation sensor) components of a focus variation instrument consisting of optical components, a vertical scanner, a digital optical sensor, an illumination system, and an optoelectronic controller