IEC TS 60825-7:2000
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Safety of laser products - Part 7: Safety of products emitting infrared optical radiation, exclusively used for wireless 'free air' data transmission and surveillance
07-15-2004
06-30-2000
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Definitions
4 Manufacturer's requirements
4.1 Engineering specifications
4.1.1 General remarks
4.1.2 Modification
4.1.3 Fault analysis
4.1.4 Limited emission duration
4.1.5 Automatic power reduction
4.1.6 Infrared pass filter
4.1.7 Transmission aperture
4.1.8 Requirements for Class 3B products
4.2 Provision of information for installation and
use
5 Labelling
5.1 General
5.2 Class 1
5.3 Class 3A
5.4 Class 3B
5.5 Warning for infrared LED radiation
6 Tests and measurements for classification
6.1 Generalbution of the radiation
6.2 Determination of the apparent source size
6.2.1 General
6.2.2 Measurement of the dimension of the
apparent source
6.3 Determination of the angular subtense
6.4 Measurements and classification
6.5 Nominal ocular hazard distance
6.6 Repetitively pulsed, modulated or scanned
radiation
6.7 Simplified classification procedure for
continuously emitting sources with wavelengths
between 860 nm and 960 nm
Annex A (informative) Rationale
Annex B (informative) Conversion of AEL and MPE limits into
radiation intensities of IREDs
Figure 1 - Class 1-related maximum allowable radiant
intensities of IR-sources
Figure 2 - Class 3A MPE-related maximum allowable radiant
intensities of IR-sources
Figure B.1 - Examples of modified cosine distributions with:
m = 1 (ideal Lambertian source), m = 4,8 for
gHW = 30degree and m = 45,3 for 10 degree
half-intensity angle
Figure B.2 - Measurement cone: different radiant
intensities for the same MPE corresponding to
the spatial distribution of the radiation
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.