Jackson Cross Cylinder Unit
AssemblyFlip-mounted ±0.25 D cross cylinder swung in front of the aperture to refine cylinder axis and power by comparison. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Jackson Cross Cylinder Unit
4 top-level lines as of r124552| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cross Cylinder Lens | phoropter-jcc-lens | 1× | 1 | · | part |
| 2 | JCC Flip Axle | phoropter-jcc-flip-axle | 1× | 1 | · | part |
| 3 | JCC Swing Arm | phoropter-jcc-swing-arm | 1× | 1 | · | part |
| 4 | Coil Spring | coil-spring | 1× | 1 | · | part |