F-16 LANTIRN Diffractive HUD Illuminated Control Panel

Technical Information

Catalogue No: C1082
Category: Head-Up Display [HUD]
Object Type: Control/Data Entry
Object Name: F-16 LANTIRN Diffractive HUD Illuminated Control Panel
Part No: 702493-1
Serial No: 005
Manufacturer: Symbolic Displays [SDI]
Division: Unknown
Platform(s): F-16C/D Fighting Falcon 
Year of Manufacture: 1989
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Archive Object Store

Illuminated Control Panel
S.D.I. (19565) 702493-1 Rev -
G.E.C. (NATO K0656) 2544-00034 Rev B
Mfg, Date Jun 1989
Ser. No. 005
Symbolic Displays. Inc.
Process Designator CF-L2
23 Lamps: MS90452-7153
Lighting Circuit 5V max
Switch Circuit 28V max


The Company developed a diffractive optical system using three combiner elements which gave a large Head Motion Box. In 1980 Marconi won the contract to supply the HUD for the USAF LANTIRN programme of which 932 were manufactured for the USAF. The LANTIRN programme links a Forward Looking Infra Red system to the HUD to present a TV picture at night of the outside world. The slight loss of transmission through the three combiner elements was not a problem in night operation although not ideal for Air-to-Air.

A raster display alone cannot give adequate symbol resolution and ensure that the symbology is always visible over the brightest shade of raster. A technique of drawing all the symbology cursively in the field blank period of the video was developed which meant drawing nearly ten times as fast. Suddenly flying by night at low level was possible. The HUD gives a 30 degree field of view in azimuth; essential for looking into turns and a 20 degree vertical view. The HUD was known as the DHUD for Diffractive HUD or WARHUD for Wide Angle Raster HUD.

The item bears two repair marks:
"RPR Aug 1990" & "RPR Mar 1994"

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