Optical System
AssemblyThe signal-forming optics: a colored Fresnel drum lens that compresses light into a 10–12° vertical fan, with internal screens cutting the horizontal arc to the legal sector. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Optical System
4 top-level lines as of r102747| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Fresnel Drum Lens | marine-navigation-light-fresnel-lens | 1× | 1 | · | part |
| 2 | Color Element | marine-navigation-light-color-filter | 1× | 1 | · | part |
| 3 | Sector Screens | marine-navigation-light-sector-screens | 2× | 2 | · | part |
| 4 | Lens Seal | marine-navigation-light-lens-seal | 1× | 1 | · | part |