The condenser is interposed between the light source and the specimen .
在光源和标本之间是聚光镜。
2
The condenser is interposed between the light source and the specimen.
在光源和标本之间是聚光镜。
3
The condenser is equipped with an iris diaphragm, a shutter controlled by a lever which is used to regulate the amount of light entering the lens system.