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BlueLight Technology

Blue misses nothing

Developed specifically for recognising objects that are difficult to detect, BlueLight sensors are true all-rounders. The BlueLight series offers much greater detection efficiency than standard optical sensors in challenging applications – whether with extremely shiny, strongly light-absorbing or highly transparent objects.

Blue light makes black visible

Transparent, shiny and deep black parts present enormous challenges for proximity sensors. Sufficient process stability cannot always be achieved during detection, in which case optical sensors ultimately have to be replaced by other sensor principles (photoelectric sensors, ultrasonic sensors etc.). Optical blue light sensors represent a cost-efficient alternative to such complex solutions, and offer much greater process stability than conventional red light proximity sensors in many critical applications.

The sensor achieves very high process stability thanks to its instantaneous response, regardless of the shape, color or structure of the object to be detected. Some applications can even involve a combination of several critical factors, e.g. black objects with a high gloss surface and a wide detection angle. Even when faced with such multiple challenges, blue light sensors have repeatedly proven their worth.

Applications & Industies

Automotive industry

  • Robust identification of metal objects with high-gloss surface
  • Detection of deep black components

Packaging industry

  • Detection of transparent film / containers / labels

Pharmaceutical industry

  • Positioning of transparent test tubes / syringes / pipette tips

Solar industry

  • Detection of presence and position of wafers
Object detection of the newest generation Brochure (pdf, 2.52 MB)

Overview: Sensors with BlueLight

Fixed focus

FT 10-BF2
FT 10-BF3
FT 25-BF2

Background suppression adjustable

FT 10-BH
FT 25-BH
FT 50-BH
FT 55-BH
FT 10-BF

Ideal for mounting on robot grippers with precise, fixed focus background suppression.

FT 10-BH

Save detection of smallest objects and designed for applications with restricted installation conditions.

FT 25-BF2

Reliable object detection even at very large angles of inclination and a precisely fixed background suppression.

FT 25-BH

Optimum detection of hard-to-detect objects with excellent sensory properties and additional IO-Link interface with switching point adjustment in millimetres.

FT 50-BH

Simple adjustment of scanning range thanks to indicator scale and precisely adjustable background suppression.

FT 55-BH

Safe operation even with reflective or shiny backgrounds and adjustable background suppression (potentiometer).

SensoPart BlueLight Technology

FT 25-BH - Detection of transparent objects
FT 25-BH - Detection of dark or shiny objects
F 10 Bluelight sensor with background suppression
Monitoring a pick-up station for electronic trays: F 10 - Bluelight sensor
Optical filling level detection in microtiter plates with F 10 Bluelight sensor
Completeness check of plastic injection-moulded parts: F 10 - Bluelight sensor
Photoelectric sensor with BlueLight technology
Photoelectric sensors with BlueLight technology open up new fields of application


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