NBN EN ISO 15253 : 2001 COR 2001
Current
The latest, up-to-date edition.
OOGHEELKUNDIGE OPTICA EN INSTRUMENTEN - OPTISCHE MIDDELEN ALS HULP BIJ SLECHTZIENDEN
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 Magnifiers
4.2 Telescopes - Distance vision
4.3 Telescopes - Near-vision/telemicroscopes
4.4 Telescopes - Adjustable
5 Requirements
5.1 Optical characteristics
5.2 Materials and construction
6 Environmental conditions of use
7 Test methods
7.1 General
7.2 Equivalent power - Magnifiers
7.3 Angular magnification - Telescopes
7.4 Resolution test
7.5 Determination of lateral variation of
magnification
8 Marking and instructions for use
8.1 Marking
8.2 Information to be provided by the manufacturer
Annex A (informative) Determination of lateral variation of
magnification
Annex B (informative) List of equivalent terms
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