Siemens ET 790 Series Technical Information PDF herunterladen (Seite 109)

Devices for Special Applications

Sun Protection, Anti-Glare Protection, Utilization of Daylight

Introduction

6/3

Siemens ET G1 · 10/2008

Sunlight tracking control

When using the sunlight tracking control,

the blind slats are not completely closed

but track the current sun position so that

the sun cannot shine directly into the

room. However, the spaces between the

slats allow as much diffuse daylight into

the room as possible and ensure

maximum daylight with minimum glare,

while at the same time reducing energy

costs.

The sunlight tracking function continually

adjusts the blind slats so that they are

constantly at right angles to the sun. This

optimizes the utilization of daylight.

Shadow edge tracking

With activated shadow edge tracking, the

sun protection is not fully extended,

rather it is extended for a set distance

(e.g. 50 cm) to allow a specified amount

of sunshine to penetrate the room.

Advantages: It is still possible to look out

of the lower part of the window, any plants

on the window sill still benefit from the

sunshine, while occupants of the room

are protected from its glare.

Sunlight tracking control and shadow

edge tracking combined

It goes without saying that the two principles

can be combined, thus offering optimum

sun protection.

Total reflection from direct sunshine

Proportion of diffuse daylight

I2_15423

Total reflection from direct sunshine

Proportion of diffuse daylight

I2_15462

Maximum depth of sunlight penetration

I2_15463

I2_15464

Maximum depth of sunlight penetration

Total reflection from direct sunshine

Proportion of diffuse daylight

Maximum depth of sunlight penetration

I2_15465

Total reflection from direct sunshine

Proportion of diffuse daylight

Maximum depth of sunlight penetration

I2_15466

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