ISO 21094:2008
(Main)Optics and photonics - Telescopic systems - Specifications for night vision devices
Optics and photonics - Telescopic systems - Specifications for night vision devices
ISO 21094:2008 applies to night vision devices such as binoculars, monoculars and goggles that are used for observation activities at night such as rescue actions under low light conditions, urgent repairs in the dark and night time surveillance.
Optique et photonique — Systèmes télescopiques — Spécifications pour dispositifs de vision de nuit
General Information
- Status
- Published
- Publication Date
- 13-Feb-2008
- Technical Committee
- ISO/TC 172/SC 4 - Telescopic systems
- Drafting Committee
- ISO/TC 172/SC 4 - Telescopic systems
- Current Stage
- 9092 - International Standard to be revised
- Start Date
- 02-Feb-2024
- Completion Date
- 13-Dec-2025
Overview
ISO 21094:2008, "Optics and photonics - Telescopic systems - Specifications for night vision devices," defines optical specifications, tolerances and minimum performance requirements for night vision devices such as binoculars, monoculars and goggles used for nighttime observation (rescue, urgent repairs in the dark, nighttime surveillance). The standard excludes thermal imaging technology and references test methods and vocabularies in related ISO documents.
Key topics and technical requirements
- Scope and exclusions
- Applies to night vision telescopic systems used for low-light observation; thermal imaging is not covered.
- Test methods
- Compliance testing is to be performed in accordance with ISO 14490-8 (test methods for night-vision devices).
- Tolerances and deviations
- Example optical tolerances specified (from the standard’s tables):
- Magnification: ±7%
- Range of vision: ±20%
- Night vision device gain: ±10%
- Field of view (object space): ±5% for binoculars; ±10% for goggles/monoculars
- Zero-setting error of dioptre scale: ±1.0 D
- Image rotation: ±1.5 minutes of arc
- Example optical tolerances specified (from the standard’s tables):
- Minimum optical requirements
- Dioptre adjustment ranges: binoculars −4 to +2 D; goggles/monoculars −5 to +2 D
- Eye relief: at least 12 mm for binoculars; 15 mm for goggles/monoculars
- Interpupillary distance adjustment: typically 60–70 mm (not applicable to monoculars)
- Close focus (where applicable): e.g., 0.3 m for goggles/monoculars
- Field imperfections: limits on acceptable spot sizes in the central field
- Consumer information and marking
- Required or recommended product data: magnification, manufacturer/trademark, country of origin, serial number, field of view, eye relief, range of vision, limit of resolution, gain, power type, operational temperature, mass, and other relevant characteristics.
Applications and practical value
- Ensures consistency in optical performance and user safety for night-vision binoculars, monoculars and goggles.
- Useful for:
- Manufacturers designing and validating night-vision optics
- Test laboratories performing compliance measurements (per ISO 14490-8)
- Procurement officers specifying performance requirements for rescue teams, field maintenance crews, security and surveillance units
- Product marketers and technical documentation teams who must supply standardized consumer information
Who uses this standard
- Optical and photonics manufacturers
- Quality and compliance engineers
- Test laboratories and calibration facilities
- Emergency services and procurement specialists specifying night-vision equipment
Related standards
- ISO 14132 series (vocabulary for telescopic systems: Parts 1, 2, 5)
- ISO 14490-8 (test methods for night-vision devices)
By following ISO 21094:2008, stakeholders ensure interoperable, measurable and documented performance of night vision devices within the defined optical and photometric tolerances. Keywords: ISO 21094:2008, night vision devices, telescopic systems, optics and photonics, binoculars, monoculars, goggles, ISO 14490-8.
Frequently Asked Questions
ISO 21094:2008 is a standard published by the International Organization for Standardization (ISO). Its full title is "Optics and photonics - Telescopic systems - Specifications for night vision devices". This standard covers: ISO 21094:2008 applies to night vision devices such as binoculars, monoculars and goggles that are used for observation activities at night such as rescue actions under low light conditions, urgent repairs in the dark and night time surveillance.
ISO 21094:2008 applies to night vision devices such as binoculars, monoculars and goggles that are used for observation activities at night such as rescue actions under low light conditions, urgent repairs in the dark and night time surveillance.
ISO 21094:2008 is classified under the following ICS (International Classification for Standards) categories: 37.020 - Optical equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 21094:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 21094
First edition
2008-02-15
Optics and photonics — Telescopic
systems — Specifications for night vision
devices
Optique et photonique — Systèmes télescopiques — Spécifications
pour dispositifs de vision de nuit
Reference number
©
ISO 2008
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 21094 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 4,
Telescopic systems.
INTERNATIONAL STANDARD ISO 21094:2008(E)
Optics and photonics — Telescopic systems — Specifications
for night vision devices
1 Scope
This International Standard applies to night vision devices such as binoculars, monoculars and goggles that
are used for observation activities at night such as rescue actions under low light conditions, urgent repairs in
the dark and night time surveillance.
The International Standard does not cover thermal imaging technology.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 14132-1, Optics and optical instruments — Vocabulary for telescopic systems — Part 1: General terms
and alphabetical indexes of terms in ISO 14132
ISO 14132-2, Optics and optical instruments — Vocabulary for telescopic systems — Part 2: Terms for
binoculars, monoculars and spotting scopes
1)
ISO 14132-5 , Optics and optical instruments — Vocabulary for telescopic systems — Part 5: Terms for night
vision devices
1)
ISO 14490-8 , Optics and photonics — Test methods for telescopic systems — Part 8: Test methods for
night-vision devices
3 Terms and definitions
For terms and definitions that apply to night vision devices refer to ISO 14132-5.
For terms and definitions and reference of letter symbols that apply to telescopic systems in general refer to
ISO 14132-1.
For terms and definitions that apply to binocular and monocular systems refer to ISO 141
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