Light-emitting diode (LEDs) Used in Night Vision Imaging System (NVIS) Compatible Lighting – Global Market Forecast

March 6, 2014

MUMBAI, India, March 6, 2014 /PRNewswire/ –

Bharat Book Bureau presents LEDs Used in Night Vision Imaging System Compatible
Lighting – Global Market Forecast. This new report provides global market consumption of
packaged light emitting diodes (LEDs), also known as component-level bulbs, used in Night
Vision Imaging System (NVIS) compatible lighting for non-civilian use, such as military,
law enforcement, emergency medical services (EMS) and related.




A night vision device (NVD) comprises of an Infrared (IR) image intensifier tube in a
rigid casing, commonly used by military forces and other non-civilian sectors; however,
night vision technology has become more widely available for civilian use, for example,
EVS, or enhanced vision systems are finding their way into private aircraft and vehicles.
Infrared light is electromagnetic radiation with a wavelength between 0.7 and 300
micrometers, which equates to a frequency range between approximately 1 and 430 terahertz

Night vision goggles (NVG) combined with magnification lenses constitutes night vision
binoculars. Other types include monocular night vision devices with only one eyepiece,
which may be mounted to firearms as night sights. NVG and EVS technologies are becoming
standard operating products on helicopter operations to improve safety. Light emitting
diodes used in Night Vision Imaging Systems must provide an environment that will not have
near infrared (NIR) noise, which would interfere with the nighttime sensitivity of the
NVGs. It is important to note that night vision compatibility (NVC) is only achieved when
the design of the lighting equipment allows for proper use with and without the NVIS, at
night or during the day.

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NVIS are passive systems, which have a very high sensitivity to radiation in the
approximate region of 600nm to 930nm (orange to near infrared). The NVIS work by
converting photons from the outside night scene onto a micro-displayed visible image. The
NVIS will amplify the nighttime scene approximately 2000 times. To protect the image
intensifier assembly, the systems are equipped with an automatic gain control (AGC), which
will aperture down the NVIS when exposed to bright lights in the region of approximately
600nm to 930nm. If displays or light sources are not NVIS compatible, the automatic gain
control will activate and the NVIS will become proportionally less sensitive to nighttime
objects outside of the cockpit.

The Department of Defense (United States) published the MIL-STD-3009 Standard for
lighting, aircraft, night vision imaging system compatibility, which specifies the
interface and performance requirements for aircraft lighting and display equipment that is
intended to be used along with NVIS. This specification defines aircraft interior lighting
standards for sources such as cockpit displays and caution / warning lights, for both day
and nighttime operating conditions. NVIS filters designed for avionic applications must
incorporate NIR attenuation properties, chromaticity, contrast for daylight readability
and often EMI/RFI shielding. The MIL-STD-3009 superseded MIL-L-85762A standard. This
standard also includes provisions for white light sources and for “leaky green”

The light emitting diodes in a display heavily influence its color, contrast, and NVIS
radiance (NR) properties. White, green, and red light emitting diodes with certain
spectral emission can be adjusted with filters to produce displays that comply with
various NVIS color coordinates and NVIS Radiance (NR) specifications described in
MIL-STD-3009. Meeting both color and Night Vision Imaging System (NVIS) Radiance limits
can be challenging. Each application is unique and always involves certain constraints,
such as space limitations or production methods that may require a specific approach in
order meet compliance.

Filters are ideal for many commercial and military applications, including
crew-station displays for aircraft and ground vehicles, as well as portable display
systems in personal digital assistants (PDA), palmtops, laptops, etc. Plastic Night Vision
Imaging System (NVIS) filters are the ideal method for making virtually any light source
compatible with NVIS, NVG, NVD, or any other night-vision apparatus. Plastic filters are
extremely durable. Where all-glass filters might fracture, lightweight plastic material
survives the most demanding real-world environments.

Quantitative Analysis LEDs face the challenge of creating definitive positions in the
NVIS illumination market, as competing lighting solutions (technologies) are readily
available and accepted. While this does not limit the potential success of LEDs, it does
create some challenges. This report provides an independent examination and analysis of
the changing market dynamics for LEDs used in selected end-use applications.

The LED market forecast data are segmented by the following functions:

        - Consumption Value (US$, million)
        - Quantity (number/units)
        - Average Selling Prices (ASP $, each)

For more information:


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Source: PR Newswire

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