ISO 15227:2000 PDF

Name: ISO 15227:2000 — Optics and optical instruments — Microscopes — Testing of stereomicroscopes
SKU: ISO 15227:2000
Price: 25 EUR
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Optics and optical instruments — Microscopes — Testing of stereomicroscopes

Название (английский):

ISO 15227:2000

Optics and optical instruments — Microscopes — Testing of stereomicroscopes

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 13 апреля 2000 г.
Издание:: ISO IS 15227 edition 1 version 1
ICS:: 37.020

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Описание (английский):

This International Standard specifies test conditions and recommended test methods to ensure the minimum requirements for stereomicroscopes. These minimum requirements are given in ISO 10936-1, ISO 11884-1 and ISO 11884-2. The test methods specified in this International Standard are recommended, but use of other test methods is permitted if the same results are obtained.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 15227:2000 - “Optics and optical instruments - Microscopes - Testing of stereomicroscopes” defines recommended test conditions and methods to verify that stereomicroscopes meet minimum performance requirements. It specifies what to measure (magnification, alignment, focus, resolution, pupil geometry, interpupillary range and dioptre adjustments) and the basic test apparatus and procedures to obtain reproducible results. Tests are recommended but alternative methods are acceptable if they produce equivalent results.

Key topics and technical requirements

Scope and accuracy

Tests ensure compliance with minimum requirements referenced in ISO 10936‑1, ISO 11884‑1 and ISO 11884‑2.
Measurement accuracy: testing shall be performed with accuracy better than 10% of the value measured (statistical evaluation recommended; see ISO 5725 series).

Primary measurements

Total visual magnification (Mtot) at highest and lowest settings.
Difference in magnification between left and right optical channels.
Axis alignment: horizontal and vertical axis differences between left/right systems (measurements often at interpupillary distance (IPD) = 65 mm).
Image-field center offsets between channels.
Imaging rotation differences (measured at IPD = 55 mm and 75 mm).
Axial and lateral image shifts during magnification changes.
Focus difference between left and right systems.
Resolution at highest magnification under CIE standard illuminant A (ISO/CIE 10526).
Exit pupil height differences, minimum IPD range, dioptre scale calibration error, and eyepiece dioptre adjustment range.

Apparatus and test objects

Typical equipment: double telescope, dioptric tester, centring telescope, graticules (cross-lines, micrometer scales, goniometer) and resolution charts. Procedures describe how to mount and align these for reproducible testing.

Applications and practical value

Manufacturers: design verification, production quality control and acceptance testing of stereomicroscopes.

Testing and calibration labs: standardized procedures for comparative measurements, certification and calibration services.

R&D and QA teams: troubleshooting optical alignment, evaluating changes in magnification systems and ergonomic features (IPD, dioptre range).

Procurement and conformity assessment: objective criteria to compare products and confirm compliance with ISO-referenced minimum requirements.

Related standards

ISO 10936‑1 - Microscopy vocabulary (related terminology)

ISO 11884‑1 / ISO 11884‑2 - Minimum requirements referenced in scope

ISO/CIE 10526 - Standard illuminant A (used for resolution testing)

ISO 5725 series - Accuracy of measurement methods and results

Keywords: ISO 15227:2000, stereomicroscope testing, microscope standard, optical instruments, total visual magnification, interpupillary distance, exit pupil, dioptre adjustment, resolution chart.

ISO 15227:2000 PDF

Abstract

Похожие стандарты

ISO 15227:2000 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and practical value

Related standards

Технические детали

ISO 10936-1:2000

Optics and optical instruments — Operation microscopes — Part 1: Requirements and test methods

ISO 11884-1:1998

Optics and optical instruments — Minimum requirements for stereomicroscopes — Part 1: Stereomicroscopes for g…

BS ISO 11884-2:2007

Optics and photonics. Minimum requirements for stereomicroscopes. High performance microscopes.

ISO 5725-6:1994/Cor 1:2001

Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy va…