When the rib of the inverter knob is in a vertical
position, the vertical circle image will be seen in the
microscope window. When the rib is in a horizontal
position, the horizontal circle image will appear in the
microscope window.
b. Removal. Refer to figure 47 and remove the
inverter prism.
Figure 45. Micrometer circle illumination prism,
removal and installation.
Figure 47. Inverter prism, removal and installation.
c. Disassembly.
Refer to figure 48 and
disassemble the inverter prism.
Figure 46. Micrometer circle illumination prism,
disassembly and reassembly.
(4) Replace all damaged or defective parts.
d. Reassembly. Refer to figure 46 and reassemble
the micrometer circle illumination.
e. Installation. Refer to figure 45 and install the
micrometer circle illumination prism.
100. Inverter Prism
a. General. The inverter prism is used to shift the
circle images seen in the microscope window from the
vertical to the horizontal.
Figure 48. Inverter prism, disassembly and
reassembly.
64
AGO 5078A
