Template:Infobox night vision device/doc

Usage
Infobox night vision device may be used to summarize information about a particular night vision device. This covers all practical NVDs and is based roughly on the Military History Infobox to maintain uniformity during information crossovers.

Note: When using parameters, avoid the ambiguous abbreviation "N/A", and instead use "unknown" or "none", or simply leave blank. All subjective or qualitative judgements and numerical quantities or statistics must be cited to a reliable source.

The infobox is intended as a quick reference. Don't add non-data items, like question marks, “none”, “see text” or links to article sections (the article's table of contents already does this). Only add “unknown” to assert that an information point is unknowable, not as a placeholder to show that it is missing from the article. Choose a representative model and indicate what it is with the  parameter, instead of listing multiple data items in one field.

Where multiple values are shown, separate them using Plainlist or Flatlist.

The template can also be used for general categories of NVD by including only some general characteristics.

General parameters:
 * name – the formal name of the NVD.
 * image – optional – an image of the NVD. The image must be given in the form [[Image:Example.jpg|300px]] ; in particular, the thumb attribute must not be selected.
 * caption – optional – the text to be placed below the image.
 * origin – optional – the country or place where the NVD originated or was first manufactured.
 * type – optional – the type of NVD (e.g. "riflescope", "monocle”,”driver-aid”, and so forth).
 * Category – optional – Military, civilian, aerospace, scientific, etc.

Type selection parameters (these parameters control whether—and how—particular specification fields will be displayed; multiple ones may be enabled where appropriate):
 * is_thermal – "yes" if the NVD is of a Thermal type; must be left blank otherwise.
 * is_tube – "yes" if the NVD uses an IIT tube; must be left blank otherwise.
 * is_digital – "yes" if the NVD is of a Digital type (and not Thermal or SWIR); must be left blank otherwise.
 * is_iit – "yes" if it's just the tube and not the entire NVD; must be left blank otherwise.

Service history parameters:
 * service – optional – the period (usually given in years) when the NVD was in service.
 * used_by – optional – the countries, armed forces, or other groups using the NVD; this may be omitted for NVDs employed only in their country of origin.
 * wars – optional – any wars during which the NVD saw service.

Production history parameters:
 * designer – optional – the person or group responsible for designing the NVD (Not the IIT).
 * design_date – optional – the date (usually given as a year) when the NVD was designed.
 * manufacturer – optional – the manufacturer of the NVD.
 * unit_cost – optional – the unit cost of the NVD in US dollars; this should only be indicated for NVDs currently being produced.
 * production_date – optional – the period (usually given in years) when the NVD was produced.
 * number – optional – the number of NVDs of this type that were manufactured.
 * variants – optional – any variant models of the NVD including "offshoots".

General specification parameters:
 * spec_label – optional – a label for the specifications, to be used when data for a particular variant is indicated; should be left blank otherwise.
 * weight – optional – the weight of the NVD.
 * dimensions – optional – the largest dimensions of the NVD. L × H × W in centimeters.
 * resolution – optional – The resolution of the NVD in lp/mm.
 * use_time – optional – The usable time on one battery (unless device takes dual batteries)
 * mode– optional – Mode of operation. Passive, active or dual-mode.

Thermal NVD specification parameters (Available if is_thermal us set to "yes"):
 * fov – optional – Field of view – in degrees.
 * detection – optional – Detection range – in meters.
 * recognition – optional – Recognition range – in meters.
 * zoom – optional – Total system zoom.

Tube based NVD specification parameters (Available if is_tube us set to "yes"):
 * iitube – optional – Original tube.
 * form_factor– optional – Form factor, e.g. 18 mm, 25 mm, 18/9 mm. PC then Screen if different. Also, ANVIS, SLIM-ANVIS, etc.
 * fov – optional – Field of view – in degrees.
 * detection – optional – Detection range – in meters.
 * recognition – optional – Recognition range – in meters.
 * zoom – optional – Total system zoom.
 * generation – optional – Tube generation. Gen1, Gen1+(Must have FO+tube), Gen2, Gen3 or Gen4.
 * subgen – optional – Tube-generation marketing term, e.g. SHP, Hypergen, etc.
 * illuminator – optional – Specifications of built-in illuminator if present.
 * system_gain – optional – Total system gain.
 * other_tubes – optional – Other tubes available (upgrades).

Digital based NVD specification parameters (Available if is_tube us set to "yes"):
 * fOV – optional – Field of view – in degrees.
 * detection Range – optional – Detection range – in meters.
 * recognition Range – optional – Recognition range – in meters.
 * zoom – optional – Total system zoom.
 * illuminator – optional – Specifications of built-in illuminator, if present.

IIT device specification parameters (Available if is_tube us set to "yes"):
 * form_Factor– optional – Form factor, e.g. 18 mm, 25 mm, 18/9 mm. PC then Screen if different.
 * zoom – optional – Any additional zoom (input to output)
 * generation – optional – Tube generation. Gen1, Gen1+(Must have FO+tube), Gen2, Gen3 or Gen4.
 * subgen – optional – Tube-generation marketing term, e.g. SHP, Hypergen, etc.
 * resolution-typ – optional – Typical resolution, edge or centre.
 * resolution-min – optional – Minimal resolution, edge or centre.
 * gain – optional – Minimal gain, edge or centre. cd/(m2·lm)
 * ebi – optional – Equivalent background illumination.
 * sn – optional – Signal-to-noise ratio.
 * sens – optional – Sensitivity at 2856 K
 * mttf – optional – Mean time to failure in hours.