ISO 8600-3:2019

INTERNATIONAL ISO
STANDARD 8600-3
Second edition
2019-08
Endoscopes — Medical endoscopes
and endotherapy devices —
Part 3:
Determination of field of view and
direction of view of endoscopes with
optics
Endoscopes — Endoscopes médicaux et dispositifs d'endothérapie —
Partie 3: Détermination du champ d'observation et de la direction
d'observation des endoscopes optiques
Reference number
©
ISO 2019
© ISO 2019
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ii © ISO 2019 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
4.1 General . 1
4.2 Measurement accuracy (field of view) . 2
4.3 Measurement accuracy (direction of view) . 2
5 Apparatus . 2
5.1 Method A (distal window reference) . 2
5.2 Method B (entrance pupil reference) . 2
6 Test methods . 3
6.1 Method A . 3
6.2 Method B . 3
7 Test report . 4
Bibliography . 8
Foreword
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The committee responsible for this document is ISO/TC 172, Optics and photonics, Subcommittee SC 5,
Microscopes and endoscopes.
This second edition cancels and replaces the first edition (ISO 8600-3:1997). It also incorporates the
Amendment ISO 8600-3:1997/Amd 1:2003.
A list of all parts in the ISO 8600 series can be found on the ISO website.
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iv © ISO 2019 – All rights reserved

INTERNATIONAL STANDARD ISO 8600-3:2019(E)
Endoscopes — Medical endoscopes and endotherapy
devices —
Part 3:
Determination of field of view and direction of view of
endoscopes with optics
1 Scope
This document applies to endoscopes designed for use in the practice of medicine. It specifies
measurement requirements and describes two test methods for measuring the field of view and
direction of view of endoscopes. Method A uses the distance from the distal window to calculate the
field of view. Method B uses the distance from the entrance pupil. Other test methods can be used if
they obtain equivalent results.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 8600-1, Endoscopes — Medical endoscopes and endotherapy devices — Part 1: General requirements
ISO 8600-6, Optics and photonics — Medical endoscopes and endotherapy devices — Part 6: Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8600-1 and ISO 8600-6 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Requirements
4.1 General
Method A applies only if the measuring distance is at least 30 times larger than the distance between the
[1]
distal end and the entrance pupil and the accuracy requirement in ISO 8600-1 is satisfied. Otherwise,
the error caused by the distance between the distal end and the entrance pupil in Method A will lead to
a systematic measurement error.
Method B may be used at any distance. In general, any method is allowed which has the entrance pupil
as reference. Details about test Method A and Method B for measuring endoscope field of view and
direction of view, inc
...