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Diffuse

Optical Proximity ModeProximity Mode

Optical Proximity sensors contain both the light source and the receiver in one common housing. The light source lens shapes the light beam into a diverging column of light that, with distance, increases in width and decreases in intensity. A wide angle receiving lens is used to collect the reflected light beam off the surface of the object to be detected.

A bifurcated fiber optic light guide can also be utilized as the light passes through the fiber optic light guide. The light is reflected off the object and passes back through the fiber to the sensor's receiver.

lt is often difficult, if not impossible, to access both sides of the detection path of objects moving past the sensing site. When this circumstance occurs, the Beam Make mode of sensing is the only choice. For example, when attempting to detect each item in a row of objects resting on a common conveyor belt, the proximity sensor is recommended. In this situation, the proximity sensor must resolve the difference between the contrasting light levels reflecting off the object vs. light reflecting off the conveyor belt.

The suppression of light reflecting off shiny objects in the background can be enhanced by proper positioning of the sensor. If the angle of incidence to the reflected light beam is adjusted so that the light beam path does not return to the receiving lens, the proximity sensor will only respond to the light diffusing, or reflecting off the object itself.

Unfortunately, there are many situations when the intensity of the light reflected off the object is not much different than the intensity of light reflected off background objects. In applications when the differential between these contrasting light levels is minimal, a high performance sensor equipped with high gain amplifiers and the contrast indicator are recommended. As a result of the diverging light beam, it is sometimes necessary for small objects to be as near as 1/8 inch to the receiving lens or fiber tip to be detected. Larger objects can be detected at a distance of up to 6 feet or more in this mode.

Detection of multiple objects on common conveyor systems
Detection of multiple objects on common conveyor systems

Detection of web material
Detection of web material

Detection of translucent objects
Detection of translucent objects

Detection of identifying features of an object for orientation
Detection of identifying features of an object for orientation

Detection of the fill level of the contents of a container
Detection of the fill level of the contents of a container

Detection of unwanted condition for product inspection tasks
Detection of unwanted condition for product inspection tasks

Click Here to Purchase a Proximity Sensor!

Convergent ("V-Axis") ModeConvergent Mode

The convergent mode of Beam Make sensing is very similar to the proximity mode. The convergent beam sensor, like the proximity sensor, responds to a light beam path that reflects off the surface of the object. However, the lensing system of a convergent (also referred to as “V-Axis”) sensor converges the light beam into a small spot of light at a distance of a few inches, precisely at the receiving lens focal point. Using this technique provides an effective method of enhancing background suppression, while directing, by reflection, a very strong light beam on a direct path to the receiving lens. In addition to improving background suppression, convergent sensing is very useful for small parts detection and for detection of printed identification data.

Fiber optic light guides can also be used in a convergent mode for “V-Axis” sensing. Simply direct two fibers at the target in a “V” configuration and small parts or the contrasts of an object can be detected.

Detection of small parts
Detection of small parts

Detection of fill level in containers
Detection of fill level in containers

Detection of object when background light suppression is required
Detection of object when background light suppression is required

Detection of printed registration marks
Detection of printed registration marks

Detection of condition for product inspection tasks
Detection of condition for product inspection tasks

Detection of objects moving at high speed
Detection of objects moving at high speed

Click Here to Purchase a Convergent Sensor!

To learn more about the sensor families we offer in this product class, please see below.

17 Item(s)

  1. Smarteye Classic

    SMARTEYE®

    High Resolution, High Speed Sensor
    Features our unique Contrast indicator that provides for precision set-up and performance verification no matter how minute the light-to-dark contrast. Multiple lens configuration modes including fiber optic mode.

  2. COLORMARK II

    COLORMARK™ II

    Contrast Sensor for Registration Marks
    High-speed, high-resolution registration mark sensing. Able to meet the demands for precision registration control on high-speed packaging machinery.

  3. EZ-EYE

    EZ-EYE™

    Miniature Push Button Sensor
    Versatile for a wide range of automated machine control applications and simple to set-up using our unique one-touch AUTOSET™ routine. EZ to align and EZ to adjust.

  4. EZ-Pro

    SMARTEYE® EZ-PRO™

    Automatic Self-Adjusting General Purpose Sensor
    High performance, automatic adjusting photoelectric sensor that can be set-up and configured by a single push of a button. Multiple lens configuration modes including fiber optic mode.

  5. SMARTEYE MARK II

    SMARTEYE® MARK II

    High Performance Sensor with "Enhanced Dynamic Range"
    High-resolution photoelectric sensor capable of performing sensing tasks most other sensors can't accomplish. It provides extended operating ranges, enhanced background suppression and the elimination of saturation problems. Multiple lens configuration modes including fiber optic mode.

  6. SMARTEYE Mark III

    SMARTEYE® Mark III

    Miniature High Performance Sensor
    High performance photoelectric sensor in a miniature size that you can use anywhere for any task... including your toughest industrial sensing applications.

  7. Mark•Eye PRO

    MARK•EYE PRO

    High-Resolution Registration Mark Sensor
    Detects printed registration marks on a continuous webs at high-speeds. Set-up and configuration at the push of a single button. Configurable lens or fiber-optic modes.

  8. MINI-EYE

    MINI-EYE™

    Miniature Sensor
    Very economical. Snout mountable in tight locations. Rugged and waterproof for use in hostile environments. Immune to indirect ambient light and strobes.

  9. MITY-EYE

    MITY•EYE

    Miniature Sensor
    Provides the same features and benefits of large, expensive sensors... at an affordable price. Interchangeable solid "optical grade" high impact lenses available for many sensing applications.

  10. Opti-Eye

    OPTI-EYE

    Miniature DIN Rail Mountable Sensor
    Rugged, cost effective, miniature, easy to use, versatile, and waterproof. High reliability for those tough general purpose industrial sensing tasks.

  11. SMARTEYE PRO

    SMARTEYE® PRO

    General Purpose Self-Adjusting Sensor
    An automatic event-driven, self-adjusting photoelectric sensor that compensates for deteriorating changes during operation. Set-up and configuration at the push of a single button. Configurable lens or fiber-optic modes.

  12. SMARTEYE SmartDot Laser Sensor

    SMARTDOT

    Precision Laser Sensor
    Detects small parts detection at long ranges. Used to detect such things as a tab on a battery, a misaligned or missing bottle cap, or a cross-threaded can lid.

  13. STEALTH-UV

    STEALTH-UV

    Luminescent Sensor
    Detects the presence of invisible fluorescent materials contained in or added to chalks, inks, paint, greases, glue, or optical brighteners found in labels, paper, tape, string, etc.

  14. Tiny-Eye

    TINY•EYE

    Small and Economical
    Fills the need for a standard "low cost" miniature DC-powered sensor with the flexibility to perform a multitude of industrial sensing tasks.

  15. U.S. Eye

    U.S. EYE

    AC/DC Sensor with Timer, Relay, or Triac Output
    Self-contained, easy-to-use sensors available in a wide variety of sensing models (thru-beam, retroreflective, proximity and fiber optic) to fit virtually any application.

  16. XPC

    X-PRO XPC

    General Purpose Sensor with Data Port
    General purpose sensor used for a wide range of applications. Great for applications where physical contact of the sensor is either restricted, undesirable, or delays production line throughput. RS-232 single sensor or RS-485 multi-drop data port.

  17. X-PRO XP10

    X-PRO XP10

    X-tremely High-Speed Dual-Function Sensor
    The highest speed (10µs) dual-function sensor in the world. One mode for precision registration mark sensor with 5µs repeat­ability and the other mode for standard photoelectric sensing of any high speed application.

17 Item(s)