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Gerber Coburn Kappa Patternless System

Gerber Coburn Kappa SP is a computer-controlled, integrated lens finishing system designed to grow with your business. It is a complete system consisting of a tracing and blocking unit, and an automatic patternless edger. The Kappa delivers a wide range of lens bevel and groove options and offers unparalleled speed and accuracy.

The Kappa features the latest technology in frame tracing.  NEW, 4-D tracing software provides the most precise frame tracing and lens mapping.  The unique 4-D capability includes an exclusive frame groove measurement.  The enhanced software makes for easy lens processing, including finishing of executive and small frame lenses.  New, patented soft pin beveling accommodates all lens sizes including small diameter lenses down to 24 millimeters.  Automatic probing of the eye wire groove profile ensures highly accurate sizes, decreases breakage and increases quality.

Tracing, blocking and edging functions are fully-integrated. Digital trace data is electronically transmitted from station to station as the lens is processed, reducing errors. As production demand grows, up to five Kappa or Gamma Edgers can be connected to a Kappa Tracer/Blocker, increasing efficiency.

The Kappa automatically positions the stylus in the frame and traces both eyes in less than 20 seconds, at the same time determining the frame DBL. After tracing, the lens is placed in the blocker. A video camera captures and displays an image of the lens, without parallax, along with the frame shape. The operator aligns the lens and checks cutout. Block application is motorized and fully automatic.

The Kappa has six automatic and controlled bevel options, as well as lens grooving. In the Kappa Edger, probes map the contours of both surfaces to determine lens curve, edge thickness and to calculate ideal bevel or groove placement. Upon completion of lens mapping, a 3D representation of the finished bevel or groove is shown on the screen, allowing the user to view its position. Placement can be automatic or modifications can be made.

Three groove widths are offered for improved fit. Kappa uses advanced grooving design and computer control to precisely locate grooves on very thin lenses. In addition, operators can probe the contour of the eye wire groove. The probe records the profile of the eye wire groove and the Kappa automatically adjusts the lens size. Measuring eye wire grooves eliminates the practice of edging lenses oversized and re-edging them to fit.

The Kappa edges glass, CR39, hi-index and polycarbonate lenses. An optional polishing wheel can impart a polished lens edge. The system operates with a direct water hookup or a recirculating pump.

Wheel maintenance is automatic, reducing operator skill level. Using a cleaning disk, Kappa controls the timing and pressure for consistent results.

Kappa tracks productivity by lens material, bevel type, groove, edge polish or error record. Sophisticated diagnostics monitor and test system functions including mechanical movements and motors.

Fully-automatic controls, a user-friendly interface, and an ergonomic design make the Kappa extremely easy to use. The full color display highlights icons to indicate available options. Regardless of equipment knowledge, an employee can be trained in the basic operation of the Kappa in as little as an hour.


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Gerber Coburn Sigma Patternless

Designed as an entry level patternless edging system, Sigma is simple, compact, and affordable. It employs 4-D processing technology, traditional blocking functions, and a user-friendly interface. And because Sigma is OMA compliant, it can interface with a lab layout system such as Gerber Coburn's Innovations Edge software. As a result, Sigma is ideal for first-time users integrating finishing equipment into their practices.


  • Connect the Tracer to the Sigma Blocker and Edger to create a complete, flexible edging system. The tracer's automatic clamping mechanism and stylus insertion speed cycle times, and its' 4-D tracing technology (x, y, z and frame groove angle) provides precise frame measurements.


  • An integrated digital system provides a centralized operation for accurately blocking lenses. Its low profile adds to the overall small footprint, saving on valuable workspace.


  • Computer-generated lens-specific layout alignment targets help to simplify the blocking process. Its unique color reversal function makes it possible to visualize characteristics of difficult lenses.


  • Sigma offers several methods of entering job information. Operators can simply scan with a bar code wand and download job specific parameters, preset customized setting, or manually select settings. No matter how complex a job, Sigma's inherent flexibility enables lenses to be processed accurately and quickly.


  • Sigma includes an essential lens mapping mechanism. Prior to roughing, Sigma maps the lens, checks lens thickness and curve and determines circumference. Sigma uses a special program for checking executive lenses to ensure a perfect fit.

  • Bevel Options
    Sigma offers four bevel options. With the automatic bevel selection, Sigma calculates optimal bevel placement from the furnished 4-D data, ensuring the best possible lens-to-frame fit. More difficult or specialty lenses can be controlled using the customized bevel options. Choices include: adjustable front curve, 33% or 50%, or flat edge.

    NEW, patented soft pin beveling accommodates all lens sizes including small diameter lenses down to 24 millimeters.  The soft pin beveling eliminates the need for any manual pin beveling, reducing lens handling and decreasing the potential for spoilage or breakage.  With this new feature, control, consistency, and quality are unparalleled.

    NEW, grooving capability.  Sigma's unique grooving design and computer control precisely locates grooves, even on very thin lenses.  Plus, operators have a choice of setting groove widths and depths in 0.05 mm increments.

    The polishing option is available for plastic and polycarbonate lenses only. Operators can activate by pressing a key.

  • Automatic maintenance functions-wheel cleaning, self calibration, and a statistics and technical log enable the operator to solve certain problems without technical assistance. If telephone assistance is required, those functions provide crucial information for effective troubleshooting.


  • Sigma's simple user interface features a customized toolbar, intuitive icons, and color LCD screen for effortless operations. Its large vertical keypad allows operators to easily monitor various edging stages, even at a distance.


    Automatic Tracing and Edging
    4-D Tracing
    3-D Edging

    Abrasive and Polishing Wheels
    Multiple wheel configurations for
    all materials or plastics dedicated

    Bevel Options
    Customized on the front curve
    Flat edge(rimless)

    Lens Material Configurations
    Plastic, polycarbonate, and glass

    Lens Mapping
    Consecutively records front and back lens contours

    Adjustable +8.00 to -8.00mm

  • Power

    115 V, single phase
    60 Hz with ground, 15 AMP


    Tracer 9 7/8" wide x 10 5/8" deep x 6 1/4" high ( 250 mm x 270 mm x 160 mm)
    Edger  22" wide x 22" deep x 21"high (535mm x 560 mm x 515 mm)


    128 lbs /58 kg

    System Compatibility

    Innovations Standard, Basic and Edge Software

    OMA Compatible Software

    Order Number


    253879-all materials


    Operation and Installation Manual

    Posiblocks and adhesive pad kit

    Coolant assembly

    Wheel cleaning tools

    Tool Kit and spare fuses

    Bar code reader

    Maintenance manual

    Calibration tool

    Deblocking pliers



    Direct water solenoid system P/N 220609

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