NS EN ISO 15253 : 1ED 2000
Current
The latest, up-to-date edition.
OPHTHALMIC OPTICS AND INSTRUMENTS - OPTICAL DEVICES FOR ENHANCING LOW VISION
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
Applicable to optical devices specified by the manufacturer for use by visually impaired persons as optical low-vision aids. Defines mechanical and optical requirements and test methods for such devices, including optical devices with electrical components such as illuminators.
| DocumentType |
Standard
|
| PublisherName |
Norwegian Standards (Norges Standardiseringsforbund)
|
| Status |
Current
|
| Standards | Relationship |
| I.S. EN ISO 15253:2001 | Identical |
| DIN EN ISO 15253:2001-01 | Identical |
| UNI EN ISO 15253 : 2001 | Identical |
| NF EN ISO 15253 : 2000 | Identical |
| ISO 15253:2000 | Identical |
| SN EN ISO 15253 : 2000 | Identical |
| BS EN ISO 15253:2000 | Identical |
| UNE-EN ISO 15253:2001 | Identical |
| NEN EN ISO 15253 : 2000 | Identical |
| ONORM EN ISO 15253 : 2000 | Identical |
| EN ISO 15253:2000 | Identical |
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