ISO 9345-2:2014
(Main)Microscopes — Imaging distances related to mechanical reference planes — Part 2: Infinity-corrected optical systems
Microscopes — Imaging distances related to mechanical reference planes — Part 2: Infinity-corrected optical systems
ISO 9345-2:2014 specifies the imaging distances of objectives, eyepieces and the focal length of "normal" tube lenses of microscopes with infinity-corrected optical systems.
Microscopes — Tirages mécaniques en fonction des plans mécaniques de référence — Partie 2: Systèmes d'optique corrigés à l'infini
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 9345-2
Second edition
2014-09-15
Microscopes — Imaging distances
related to mechanical reference
planes —
Part 2:
Infinity-corrected optical systems
Microscopes — Tirages mécaniques en fonction des plans mécaniques
de référence —
Partie 2: Systèmes d’optique corrigés à l’infini
Reference number
ISO 9345-2:2014(E)
©
ISO 2014
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ISO 9345-2:2014(E)
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ii © ISO 2014 – All rights reserved
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ISO 9345-2:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Nominal dimensions and tolerances . 2
4.2 Examples . 5
5 Marking . 5
Annex A (informative) Examples of dimensions in use . 6
Annex B (informative) Requirements and recommendations for OEM-use of objectives and
tube lenses . 7
Bibliography . 9
© ISO 2014 – All rights reserved iii
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ISO 9345-2:2014(E)
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
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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to Trade (TBT) see the following URL: Foreword - Supplementary information
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 9345-2:2003), which has been technically
revised.
ISO 9345 consists of the following parts, under the general title Microscopes — Imaging distances related
to mechanical reference planes:
— Part 1: Tube length 160 mm
— Part 2 Infinity-corrected optical systems
iv © ISO 2014 – All rights reserved
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INTERNATIONAL STANDARD ISO 9345-2:2014(E)
Microscopes — Imaging distances related to mechanical
reference planes —
Part 2:
Infinity-corrected optical systems
1 Scope
This part of ISO 9345 specifies the imaging distances of objectives, eyepieces and the focal length of
“normal” tube lenses of microscopes with infinity-corrected optical systems.
NOTE A specific combination of eyepiece, objective, and tube lens is frequently used to correct aberrations.
Therefore the combination of an objective from one manufacturer and the tube lens or eyepiece from another
manufacturer, although conforming to this part of ISO 9345, can cause errors in magnification and/or in optical
performance.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 9345-1, Microscopes — Imaging distances related to mechanical reference planes — Part 1: Tube length
160 mm
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
parfocalizing distance of the objective
l
1
distance in air between the object plane (i.e. the uncovered surface of the object) and the locating flange
of the objective, when the microscope is in its working position
Note 1 to entry: The parfocalizing distance of the objective is one of the optical interfacing dimensions.
[SOURCE: ISO 10934-1:2002, 2.80.2.4]
Note 2 to entry: See Figure 1, Figure 2 and footnote b in Table 1.
3.2
image distance of the objective
l
2
distance in air between the objective locating surface and the primary image plane
Note 1 to entry: An infinity-corrected objective alone produces a primary image at infinity. In combination with an
infinity-corrected tube lens,
...
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