Brass 3k

The Brass 3K is designed for measuring surfaces in the contact lens industry, including reflected wavefront analysis and lathe set-up assistance.

System for Contact Lenses

Fully Compatible with

Brass 3k

The Brass 3K is designed for measuring surfaces in the contact lens industry, including reflected wavefront analysis and lathe set-up assistance.

System for Contact Lenses

Fully Compatible with

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Performance

6 SEC

Measurement time

±3 µm

Accuracy

±1 µm

Repeatabillity

Production Stage

Brass 3k

Sample types

Male and female plastic molds
Lathe-cut front & base curves
Metal tools/ Inserts
Glass molding
Lens material- buttons
Symmetric & Asymmetric designs

Measurement capabilities

Radius of Curvature
Radius of curvature (ROC)
Cylinder
Cylinder
Axis
Axis
Sagittal height (SAG)
Sagittal height (SAG)
Wavefront
Wavefront
tool offset
Tool offset

Brass 3k

Specification

Working Principle
Moiré Deflectometry
Can work  with Focal Points
Yes
Production Stage
Lathe calibration, Front and back curve processing
Type of samples
Male and female plastic molds, Lathe-cut front & base curves Metal tools/ Inserts,Glass molding,Symmetric & Asymmetric designs
Condition
Can measure in a production environment
Toric detection
Automatically finds axis of toric lens, no need to align according to axis
Sample Diameter 
up to 30 mm
Measurement capabilities
Radios of curvature (ROC), Cylinder, Axis, Sagittal height (SAG) tool offset, Surface Quality, Aspheric
Measurement speed spheric
6 seconds
Measurement speed Toric
20 seconds
Cylinder range
900 µm [can be increased]
Radius of curvature range 
BC 2-12.6 mm, FC 2-10 mm
Field of view
Up to 0.9*Radius of curvature [ can be changed]
Power supply
100-240VAC/50Hz-60Hz.
Operation temperature
-5 to +45 C°
External dimensions (L x W x H)
510x250x350mm
Weight
32 kg

Gallery

Tool offset
Brass3K toric fringe and table
Toric fringe and table
Brass3K toric fringe and table2
Toric fringe
Brass3K toric lathe marks average map 2
Toric lathe marks average map
Toric lathe marks cross section
Toric lathe marks histogram
Brass3K toric lathe marks radial profile 2
Toric lathe marks radial profile
Toric lathe marks tool offset
Toric lathe marks
WF analysis screen
Aspheric main screen
Aspheric cross section
Aspheric histogram
Aspheric radial profile
Center defect
Defect
Defect
Histogram
Spheric full screen
Spheric histogram
Spheric Sag and Quality
Unique benefits of the Brass 3k
Includes a powerful wavefront manipulator with Zernike polynomial operations.
Includes advanced reference algorithms for internal optics correction.
Helps identify issues that arise during the lathing and molding process.
Automatic identification of cylinder axis.
Quicker conic constant measurement.
Includes all Brass2000 capabilities and more.

An answer to your question

More questions?

BRASS 3K performs surface and quality inspection for lens inserts, metal-core parts, and plastic molds covering both male and female components. It also supports reflected wavefront analysis and lathe setup calibration, helping validate geometry before final processing. Its inspection cycle takes approximately 6 seconds, with a surface accuracy of ±3 µm and repeatability of ±1 µm.
With a 6-second inspection cycle, the BRASS 3K delivers high-throughput performance without compromising precision. It maintains sub-micron accuracy, making it ideal for production environments that require both speed and consistency. The system includes advanced features such as lathe setup guidance and tool-offset detection powered by reflected wavefront analysis. It also captures full measurement histories and supports seamless integration with SPC or LMS systems, enabling real-time traceability and robust quality control.
BRASS 3K offers nearly identical core inspection capabilities, but is enhanced with reflected wavefront measurement, faster processing, and subtle system upgrades. While BRASS 2000 has accuracy of ±2.9 µm surface resolution, BRASS 3K adds advanced wavefront analytics for finer quality control ideal for more demanding precision environments.

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