Cockpit Instrumentation Lighting Panel

The Lighting Panels are intended to provide illumination for various controls /switches in the cockpit consoles of Light combat Helicopter (LCH). These panels will provide proper ambient/visibility to the pilot for operating various controls during day/night operation of LCH. The lighting panels will be form fit and provide uniform illumination to the Panels

Cockpit Instrumentation Lighting Panel

Sl. No Description Compact Diaphragm
1 Top Plate 4.87mm thick Aircraft Grade Clear polycarbonate Sheet/ Markrolon FAR Grade FAR.25.853 polycarbonate sheet.
2 PCB 1.2 mm thick FR4 glass/epoxy sheet as per LCSO specification.
3 LEDs Surface Mount / through hole green LEDs (as per NVIS requirement).
4 External Finish Matt Black
5 Top Legends/Markings Engraved on Top as per the legends and dimensions in the drawings. Painted white as per the requirements.
6 Operating Voltage +28 ± 3V DC
7 Photometric measurements
(a) Light Intensity
(b) Chromaticity co-ordinates


Luminance should not be < 343 mcd (At +28V)as per MIL-STD-3009
The range of values ,U=0.088,v=.543 ,r=.037 as per MIL- STD-3009 The measurement done in a dark room