12
SA1E-L Miniature Laser Photoelectric Switches (Built-in Amplifier)
Characteristics (Typical)
3. Background Suppression (BGS) SA1E-LB
Lateral Displacement (Preset 150 mm)
Lateral Displacement (Preset 300 mm)
Light Beam Diameter
Lateral Displacement Y (mm)
-3
-2
-1
0
1
2
3
200
150
100
50
0
White
Paper
Black
Paper
Object: 100
×
100 mm matte paper
(black/white)
X
Y
Lateral Displacement Y (mm)
-3
-2
-1
0
1
2
3
400
300
200
100
0
Object: 100
×
100 mm matte paper
White
Paper
X
Y
Light Beam Diameter (mm)
0.0
0
50 100 150 200 250 300 350 400 450 500
0.5
1.0
1.5
2.0
2.5
3.0
A
A
B
B
Sensing Distance X (mm)
Sensing Distance X (mm)
Sensing Distance (mm)
Light beam diameter:
Defined as 1/e
2
(13.5%) of the center intensity
Color Matte Paper and Other Materials
(Preset 150 mm)
Color Matte Paper and Other Materials
(Preset 300 mm)
Control Knob vs. Sensing Distance
Sensing Distance (mm)
50
0
100
150
200
White
Green
Red
Blue
Gray
Black
Cardboard
Aluminum
Stainless Steel
Black Rubber
Bras
s
Sensing Distance (mm)
0
50
100
150
200
250
300
350
White
Green
Red
Blue
Gray
Black
Cardboard
Aluminum
Stainless Steel
Black Rubber
Bras
s
Sensing Distance (mm)
0
100
200
300
400
500
600
700
0
1
2
3
4
5
6
7
Object: 100
×
100 mm
matte paper (white)
Comparison of sensing distance when set to detect
white matte paper (100 × 100 mm) at 150 mm
Comparison of sensing distance when set to detect
white matte paper (100 × 100 mm) at 300 mm
Control Knob (turns)
