主权项 |
1. A florescence microscope assembly for observing a specimen comprising:
an objective lens assembly having an optical axis; and a light source, wherein the light source is a light emitting diode (LED), the light source with the objective lens assembly opposing the specimen, the light source being positioned off the optical axis of the objective lens assembly, and the light source illuminating the specimen when the specimen is located on the optical axis of the objective lens assembly. |