| Light passes through the structured scanning reticle and over the scale onto photo-voltaic cells. |
| The 4A-300 reticle is based on a conventional 4A reticle and may of course also be used exclusively as such. |
| Etched in optical glass, the reticle has the clarity Leupold scopes are renown for. |
| Rotate the eyepiece seat to make the crosshair center in the reticle of instrument on the same level with a known reference point. |
| Both the wafer stage and reticle stage float on air bearings and move with linear motors. |
| Then rotate the eyepiece tube to make the horizontal hair on the reticle of instrument level by using a known level reference point. |
