🌐EnglishEnglishDeutschFrançaisItalianoPortuguêsРусский한국어中文日本語EntityQ3148743· pop 8· linked from 45 articlesKöhler illuminationMethod of specimen illumination used in optical microscopyConnectionsoptical microscopeEntitydifferential interference contrast microscopyEntityCategoriesLaboratory equipmentLightingMicroscopyNonimaging opticsOptical microscopy