Catalogue No: | C0657 |
---|---|
Category: | Head-Up Display [HUD] |
Object Type: | Module/Sub-Assembly/Component |
Object Name: | Tornado HUD Dual Combiner Assembly |
Part No: | E3887/53718 |
Serial No: | 18508 |
Manufacturer: | Pilkington PE |
Division: | Unknown |
Platform(s): | Tornado |
Year of Manufacture: | Unknown |
Dimensions: |
Width (mm): 185 Height (mm): 284 Depth (mm): 213 Weight (g): 2,640 |
Location: | Rack RAA13 (HUD DU Parts) [Mezzanine Store] |
Part No E3887/53718
Ser No 18508
34463/100KK
PFD 10313
018508
1L4/PT
The given dimensions exclude the 138g green, plastic, combiner-protector.
This is a complete dual combiner assembly from the Tornado Mid-life update HUD made by GEC Ferranti. These glasses use another technique of a special multi-layer coating called rugate technology. Rugates act like a single inhomogeneous film with a refractive index that varies continuously and periodically throughout the thin-film structure. The same impressive increase in transmission and reflection can be achieved as the ‘holographic’ system but without the bulk of the glass sandwich. Omitec originally developed thin-film rugate technology to manufacture "notch" filters of specific bandwidth. In 1991 flight tests of Head Up Displays, fitted with what was claimed to be the world's first airborne thin-film colour-selective graded combiners were commenced in a Harrier GR.7 and a Tornado GR.4 later in the year. Omitec also delivered Rugate coated Combiners to GEC Ferranti for the wide-angle HUD for the Royal Air Force's Tornado GR.4 mid-life upgrade.