Overview of the OPT-RBV9855-W

Surface defects, characters or logos on rectangular objects need even light from all four sides to keep images free of shadows. The OPT-RBV9855-W diffuse dark field square light from the OPT-RBV series by OPT Machine Vision illuminates from four directions for uniform, shadowless lighting.

As a machine vision distribution partner in Vietnam, BeeVision supplies the genuine OPT-RBV9855-W together with matching controllers and accessories. Full figures are in the Specifications tab and the original catalog is in the Documents tab.

What is a diffuse dark field light and how does it work

The light is a square frame with a central window through which the camera views the object. Light from LEDs inside the frame passes through a diffuser and strikes the inspection area at an angle. With dark field illumination, most light reflected by flat areas does not enter the lens, while edges and raised or recessed details scatter light toward the camera and stand out in the image. The diffuser makes the light softer and more even.

According to OPT's section drawing, the light consists of a housing, PCB, heat sink, LEDs and a diffuser.

Key features and benefits

  • Uniform and shadowless: Illumination from four directions.
  • Suits rectangular objects: For use on irregular rectangular targets.
  • Flexible working distance: Suitable for multiple applications at different working distances.
  • Customizable: Color, mounting, size and sectional control.

Typical applications

  • Detection of surface defects.
  • OCR, logo, barcode and fingerprint recognition.
  • Packaging box surface inspection: An application example from OPT's catalog.

Integration with controllers and vision systems

OPT recommends running the OPT-RBV9855-W with the OPT-DPA2024E controller. Explore more in our OPT Machine Vision lights, lenses & controllers catalog, the OPT-BC50-W coaxial light and our machine vision lighting range at BeeVision.

Why choose BeeVision

BeeVision is a trusted machine vision equipment distributor in Vietnam, offering customers:

  • Genuine OPT Machine Vision products with full proof of origin.
  • In-depth technical consulting: Our engineering team helps select the right lights, controllers and cameras for each inspection task.
  • Integration & POC support: Accompanying you from sample testing to full production-line deployment.
  • Reliable warranty and after-sales service with fast nationwide delivery.

Contact BeeVision for consultation and a quote on the OPT-RBV9855-W:

Website: bee.vision

Email: hive@bee.vision

OPT-RBV9855-W catalog & technical drawing

OPT-RBV9855-W catalog (PDF)

OPT-RBV diffuse dark field square light series catalog by OPT Machine Vision
Overview of the OPT-RBV diffuse dark field square light series – OPT Machine Vision.
OPT-RBV9855-W model table and dimension drawing
Model table and dimension drawing of the OPT-RBV9855-W (source: OPT Machine Vision).