RO
SR EN ISO 11146-2:2005
Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 2: General astigmatic beams (ISO 11146-2:2005)
ISO 11146-2:2005 specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams. ISO 11146-2:2005 is applicable to general astigmatic beams or unknown types of beams. For stigmatic and simple astigmatic beams, ISO 11146-1 is applicable. Within ISO 11146-2:2005, the description of laser beams is accomplished by means of the second order moments of the Wigner distribution rather than physical quantities such as beam widths and divergence angles. However these physical quantities are closely related to the second order moments of the Wigner distribution. In ISO/TR 11146-3, formulae are given to calculate all relevant physical quantities from the measured second order moments.
Status :
Withdrawn
Approval date : 12/15/2005
Publish date : 12/17/2005
Romanian version publish date : 9/28/2018
Withdrawal date : 9/30/2021
Number of pages : 22
ICS : 31.260 Optoelectronics. Laser equipment
Technical Committee : 230 - Optics and optical instruments
- Replaces SR EN ISO 11146:2003
- Normative reference SR EN ISO 11146-1:2005
- Normative reference SR EN ISO 11145:2016
- Normative reference SR EN 61040:2002
- Replaced by SR EN ISO 11146-2:2021