Datasheet

Light sensor PHOTASGARD
®
Light sensor PHOTASGARD
®
G
Light sensor and motion detector
In all KINASGARD
®
motion sensors and presence detectors, a high-end variant infrared sensor with enlarged angle of aperture is exclusively
used. Because of the patented lens system with 20 individual lenses, only very small dark areas are resulting, which even at a distance of 10 m
are only a few centimeters wide, safely detecting also small motions. The sensor recognizes changes in the infrared radiation spectrum, so in
heat radiation, resulting form the movement of persons or objects. Such movements generate a temporary change of the temperature gradient
in the field. Because of the always present body (heat) radiation, this sensor is excellently suitable for the detection of persons. The temperature
difference between sensor and object must be > 5 K.
Aperture angle
KINASGARD
®
High-end variant infrared sensor with enlarged aperture angle of 100°
respectively 110° over 360 degrees circumference and 10 m of reach.
Principle KINASGARD
®
Sensor recognizes the temperature difference resulting
from the movement of persons or objects.
Motion sensor
Motion
Infrared
radiation
Infrared
radiation
Temperature
difference
10m
5m
5m
10m
10m
5m
5m
10m
55°
55°
46,5°
46,5°
X Y
0° 0°
Top view
Side view
Detection range KINASGARD
®
The sensor used in PHOTASGARD
®
light intensity sensors
was specifically adapted to the sensitivity of the human eye.
Its greatest sensitivity is in the range of 350 nm to 820 nm.
Therefore with its special filter the sensor is predestined for
exposure measure ment of daylight and ⁄ or for measuring
artificial light of high colour temperature (similar to sunlight).
Characteristic curve showing the sensor's sensitivity
in function of the angle of incidence of light.
Characteristic curve showing the sensor's
sensitivity in respect of the wavelength of light.
The broken line represents the light perception
of the human eye.
500400300 600
CIE
SENSOR
700 800 900nm
0%
100%
20%
40%
60%
80%
120%
40°
50°
60°
70°
80°
90°
100°
1.0
0.8
0.6
0.4
0.2
0
1.0
0.8 0.6 0.4
30° 20° 10° 0°
0° 20° 40° 60° 80°
100°
AHKF
40°
50°
60°
70°
80°
90°
100°
1.0
0.8
0.6
0.4
0.2
0
1.0
0.8 0.6 0.4
30° 20° 10° 0°
0° 20° 40° 60° 80°
100°
ABWF ⁄ LF