I.S. EN ISO 11146-2:2021
Current
The latest, up-to-date edition.
Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 2: General astigmatic beams (ISO 11146-2:2021)
Hardcopy , PDF
English
09-08-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Coordinate system
5 Test principles
6 Measurement arrangement and test equipment
7 Measurement of the second order moments
8 Determination of effective beam propagation ratio
9 Determination of intrinsic astigmatism
10 Determination of the twist parameter
11 Test report
Bibliography
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