Reflective Optical Sensors

Reflective optical sensors are photoelectrical sensors that are used to detect the presence or absence of objects, or measure the distance to those objects. They are a non-contact type of sensor, often used in the automation industry. They can be used to provide real-time information in a manufacturing setting in order to keep processes running smoothly.

How do reflective optical sensors work?

A reflector is positioned opposite the light sensor, and a light beam is passed back and forth between the two. When an object is present, the beam is interrupted, and the sensor will send an electrical signal to the output device.

In some cases, polarising filters may be needed if the objects being detected are themselves reflective. These allow the sensor to tell the difference between light reflected by the reflector and the object.

Advantages of using reflective optical sensors

The advantage of using a reflective optical sensor over a through beam sensor is that they are much easier and less time consuming to install. This is because the transmitter and receiver are housed within the same body.


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Description Price Peak Sensor Distance Output Device Typical Rise Time Typical Fall Time Number of Channels Number of Pins Mounting Type Package Type Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Width
RS庫存編號 170-0730
製造零件編號OPB720A-06Z
BrandOptek
HK$118.658
個 (以毎袋:25)
單位
152mm Open Collector - - 1 3 Screw Mount - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +50°C 0°C 8.38mm
RS庫存編號 414-175
製造零件編號OPB720A-06Z
BrandOptek
HK$121.60
單位
152mm Open Collector - - 1 3 Screw Mount - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +50°C 0°C 8.38mm
RS庫存編號 455-0947
製造零件編號OPB705
BrandOptek
HK$21.02
單位
3.8mm Phototransistor - - 1 4 - - 17.78 x 5.08 x 22.86mm 22.86mm 17.78mm - - 5.08mm
RS庫存編號 170-0778
製造零件編號OPB705
BrandOptek
HK$20.041
個 (以毎袋:25)
單位
3.8mm Phototransistor - - 1 4 - - 17.78 x 5.08 x 22.86mm 22.86mm 17.78mm - - 5.08mm
RS庫存編號 170-0732
製造零件編號OPB720B-06Z
BrandOptek
HK$155.355
個 (以毎袋:25)
單位
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS庫存編號 170-0783
製造零件編號OPB350W250Z
BrandOptek
HK$56.94
個 (以毎袋:25)
單位
6.35mm Phototransistor - - 1 4 Screw Mount - 29.59 x 7.62 x 13.34mm 13.34mm 29.59mm +85°C -40°C 7.62mm
RS庫存編號 642-4323
製造零件編號OPB350W250Z
BrandOptek
HK$56.94
單位
6.35mm Phototransistor - - 1 4 Screw Mount - 29.59 x 7.62 x 13.34mm 13.34mm 29.59mm +85°C -40°C 7.62mm
RS庫存編號 170-0782
製造零件編號OPB732
BrandOptek
HK$45.417
個 (以毎盒:25)
單位
1in Phototransistor - - 1 4 Through Hole - 12.19 x 5.08 x 12.7mm 12.7mm 12.19mm +85°C -40°C 5.08mm
RS庫存編號 455-0931
製造零件編號OPB702
BrandOptek
HK$24.07
單位
3.81mm Phototransistor - - 1 4 Through Hole - 17.78 x 4.78 x 8.89mm 8.89mm 17.78mm +85°C -40°C 4.78mm
RS庫存編號 170-0731
製造零件編號OPB720B-30VZ
BrandOptek
HK$182.86
個 (以毎袋:25)
單位
762mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS庫存編號 414-181
製造零件編號OPB720B-30VZ
BrandOptek
HK$186.84
單位
762mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS庫存編號 642-4301
製造零件編號OPB732
BrandOptek
HK$32.87
單位
1in Phototransistor - - 1 4 Through Hole - 12.19 x 5.08 x 12.7mm 12.7mm 12.19mm +85°C -40°C 5.08mm
RS庫存編號 414-197
製造零件編號OPB720B-06Z
BrandOptek
HK$106.83
單位
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS庫存編號 170-0777
製造零件編號OPB702
BrandOptek
HK$23.648
個 (以毎袋:25)
單位
3.81mm Phototransistor - - 1 4 Through Hole - 17.78 x 4.78 x 8.89mm 8.89mm 17.78mm +85°C -40°C 4.78mm