Photometric data

iGuzzini

wall washer

1 m

This indicates the illuminationdistribution expressed in lux which isemitted onto a wall by the light from afitting installed at a distance of... ...meters and with an orientation of α degrees with respect to the wall. The values indicated are absolute anddo not refer to 1000 lumen. For spaces where video displays are utilized, the EN 12464-1 standarddefines luminance limits along with the UGR specific values. The maximum values that are allowed according to the type ofscreen that is used:

Class of screen according toISO 9241-7Class of screen according toISO 9241-7goodmediumpoorL IIIIIIL Average luminance of fittings reflectedonto the screen ≤ 1000 cd/m
2 ≤ 200 cd/m
2

The chart shows the average luminance limits the light fitting should have,for elevation angles of 65°or greater in relation to the vertical axis, for workspaces where video display unites are used in a vertical position or with an inclination of up to 15°in relation to the vertical. For those locations where sensitive screens or screens with inclinationsof more than 15°, the luminance limits must be applied for lower elevationangles (55°, for instance).

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