Assertion: otoscope's lens | /r/HasProperty | 60 of the otoscope head
Facets:
Source sentences:
text: 1, the visual or optical image is emitted through an optically clear rear lens 74 located in the rear aperture 60 of the otoscope head (FIG. 5) and is directly received through another optically clear lens 76 on the video camera 22 (FIG.