ocr: PARTICLE ATLAS Electronic Edition File Browse Search Window G. Illumination the microscope condenser, gives illumination of high quality although of lower intensity because of the ground glass. As much as 70% of the initial illumination may be lost with a ground glass. The illuminator and lamp tlament need no adjustments although an adjustable iris on the llumnator is helpful SO that it may be used as a field diaphram. All three types of llummatonrequre that the microscope substage condenser be focused on the specimen tog give a full illuminating cone and to permit the substage iris to be focu ...
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