MIL-STD-3009 Department of Defense Interface Standard: Lighting, Aircraft, Night Vision Imaging System (NVIS)

Developed by the United States Department of DefenseMIL-STD-3009 The “Defense department interface standard: Lighting, aircraft, night vision imaging system (NVIS)” standard describes the requirements for the emission characteristics of aircraft lighting and imaging equipment intended for use with night vision imaging systems (NVIS).

These requirements are applicable to all systems, subsystems, component equipment and assemblies that provide the lighting environment on aircraft in which night vision imaging systems are used.

This standard applies to performance requirements specific to night vision imaging systems, but does not include general illumination requirements. The contract activity should derive applicable general lighting requirements from the “JSSG-2010/5 Crew systems aircraft lighting manual” document, adapt them and include these requirements in the contract.

The MIL-STD-3009 standard replaces the previous “MIL-L-85762A Military specification: Lighting, aircraft, interior, night vision imaging system (NVIS)” standard.

The purpose of this standard is to provide interface requirements and test methodology to ensure compatible and standardized aircraft interior lighting for night vision imaging system compatibility.

Night vision display system compatible aircraft interior lighting is divided into classes as follows:

• Type I: Illumination compatible with any direct image NVIS image using Generation III image intensifier tubes
• Type II: Any projected image using Generation III image intensifier tubes with NVIS-compatible illumination
  • Class A: NVIS-compatible illumination using 625 nm minus blue objective filters with specifications as given
  • Class B: NVIS-compatible illumination using 665 nm minus blue objective filters with specifications as given
  • Class C: NVIS-compliant lighting with green leakage as shown in the figure (lighting that meets class B compliance criteria according to this standard is assumed to also be compliant with class C NVIS)

For the purposes of this standard,

• A night vision imaging system (NVIS) is a system that uses image intensifier tubes to create an enhanced image of a scene in light conditions too low for normal navigation and piloting.
• Direct view image NVIS (Type I) is any NVIS that uses generation III image intensifier tubes and displays the intensified image in the user's direct line of sight on a phosphorescent screen.
• Projected image NVIS (Type II), generation III, is any NVIS that uses image intensifier tubes and projects the intensified image onto a transparent medium in the user's line of sight.
• A class A NVIS is any NVIS with the features shown in the figure given within the standard.
• A class B NVIS is any NVIS with the features shown in the figure given within the standard.
• Class C NVIS is NVIS compatible lighting with green leakage as shown in the standard.
• Adaptive interior lighting is aircraft interior lighting that allows aircraft interior information to be obtained with the naked eye without impairing the image intensification capabilities of NVIS during night flight operations.
• Lighting system is any device that emits or transmits light within the flight deck or other crew compartments.
• Lighting subsystem is all devices within the flight deck or other crew compartments that emit or transmit light and are connected to aircraft power through a common dimmer control.
• A crew station or bay is any workstation or bay within the aircraft where aircrew are required to use NVIS in the performance of their duties.

Briefly, the MIL-STD-3009 standard defines radiant energy interface requirements and test procedures applicable to NVIS-compliant lighting systems for new or modified aircraft lighting equipment and crew stations. The design of the lighting equipment should not interfere with the operation of the system, day or night, with or without NVIS.

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