25mm Line Scan Lens for 32mm Image 7µm Circle Industrial Cameras

Who Is This 25mm Line Scan Lens Designed For?

This lens is suitable for machine vision system integrators, automation equipment manufacturers and factory vision engineers building long-working-distance line scan inspection systems.

It is a practical candidate when the project requires:

• A 4K line scan camera with approximately 7µm pixels
• An active line sensor length within the Ø32mm image circle
• A 25mm focal length for wide object-side line coverage
• Reference magnifications from 0.015X to 0.050X
• Low distortion for width, edge, pattern and circuit inspection
• M42 or M72 mechanical integration

Why Use a Long-Working-Distance Line Scan Lens?

A line scan camera captures one row of pixels at a time while the object or camera moves. This allows the vision system to build a continuous image of long products, wide materials or continuously moving surfaces.

The low magnification configurations of the PMS-LLA003-2540M are designed for large object-side coverage. They are useful when the inspection system must view a wide line while keeping the camera and lens farther from the target.

• Continuous sheet, web, film and paper inspection
• Large PCB and circuit trace inspection
• Surface scratch, contamination and texture detection
• Long-part width and edge inspection
• Printing, coating and color consistency inspection
• High-speed automated production inspection

Ø32mm Image Circle and 7µm Camera Compatibility

The PMS-LLA003-2540M supports a maximum Ø32mm image circle and is specified for 7µm line scan cameras.

A typical 4096-pixel line sensor with 7µm pixels has an active line length of approximately 28.7mm. This fits within the specified image circle and provides additional coverage margin for alignment and sensor geometry.

Final compatibility should still be confirmed with the exact camera model, active line length, mount and required edge-image quality.

Magnification, Working Distance and Line Field of View

The approximate object-side line field of view is calculated by dividing the active line-sensor length by optical magnification. Actual usable coverage depends on camera alignment, focus position, image quality requirements and mechanical installation.

Low Distortion and Uniform Line Imaging

The specified distortion is below 0.1%, helping reduce geometric error in edge detection, width inspection, PCB trace analysis and pattern comparison.

Relative illumination is specified at 65%. Uniform line lighting, exposure time, object speed and the mechanical alignment of the camera and target remain important for consistent brightness across the full line.

For measurement tasks where object-height variation must not affect magnification, a telecentric line scan optical system should be evaluated.

Mount Options and Mechanical Integration

The source specification lists M42 and M72 interface options. The mechanical drawing shows an M42 × P1.0 reference configuration with an object-side barrel diameter of approximately Ø42mm and a reference optical length of 80.4 ± 5.0mm.

• Focal length: 25mm
• Aperture range: F4.0-F16
• Maximum image circle: Ø32mm
• Resolution: 7µm
• Distortion: <0.1%
• Relative illumination: 65%
• Mount options: M42 / M72

The exact flange, adapter and installation dimensions should be confirmed using the selected camera and mount configuration before production approval.

Typical Line Scan Applications

• Large PCB defect and circuit trace inspection
• Surface scratches, dents and contamination detection
• Texture, color and coating inspection
• Continuous web, film, paper and sheet inspection
• Electronic component and lead-frame inspection
• Long-part edge and width inspection
• Printing and label quality inspection
• Automated production-line image acquisition

When This Lens Is a Good Fit

• Your system uses a 4K line scan camera with approximately 7µm pixels
• The active line length is within the Ø32mm image circle
• The required magnification is 0.015X, 0.030X or 0.050X
• The installation can accommodate a 520-1740mm working distance
• Your application requires a wide object-side line field of view
• M42 or M72 integration is suitable

When to Consider Another Optical Solution

• The active line length exceeds the Ø32mm image circle
• The pixel size is significantly smaller than 7µm and higher optical resolution is required
• The available working distance is shorter than 520mm
• The inspection requires a higher magnification and smaller line field of view
• Object-height variation must not affect magnification
• The project requires a telecentric line scan lens or a larger-format interface

Information Required for Line Scan Lens Selection

To confirm whether the PMS-LLA003-2540M is suitable, please provide:

1. Line scan camera model
2. Pixel count and pixel size
3. Active line-sensor length
4. Required object-side line field of view
5. Available working distance
6. Line rate and object movement speed
7. Smallest defect or feature to detect
8. Required width or positioning accuracy
9. Lighting method and object surface
10. Camera mount and available installation space

Manufacturer-Direct Optical and Application Support

POMEAS provides manufacturer-direct communication for camera-lens matching, magnification selection, working-distance review, mount confirmation, lighting coordination and sample evaluation.

• Review of active line length, pixel size and image-circle compatibility
• Selection of magnification, line field of view and working distance
• Support for M42 and M72 integration
• Coordination of line lighting and exposure conditions
• Sample testing and compatibility verification
• Technical support for repeat-order automation projects

Reduce Selection Risk Before Ordering

Selecting a line scan lens by focal length alone may result in insufficient sensor coverage, an incorrect line field of view, unsuitable working distance or inadequate optical sampling.

Before quotation, POMEAS can review the camera model, active sensor length, pixel size, required line field of view, magnification, working distance and smallest defect to confirm whether this lens is a suitable option.

Frequently Asked Questions

Can this lens support a 4K line scan camera?

Yes. The lens is designed for 4K line scan imaging and is specified for cameras with approximately 7µm pixels and an active line length within the Ø32mm image circle.

What line field of view can the lens provide?

With a 28.7mm active line, the approximate line fields are 1911mm at 0.015X, 956mm at 0.030X and 573mm at 0.050X.

What mount options are available?

The source specification lists M42 and M72 mount options. Confirm the exact camera flange and adapter before ordering.

Is this a low-distortion line scan lens?

Yes. The specified optical distortion is below 0.1%.

Is it suitable for precision measurement?

It can support width, edge and calibrated inspection tasks. If object-height variation must not affect magnification, a telecentric line scan solution should be evaluated.

Related POMEAS Resources

• Browse machine vision lenses and imaging components
• Compare a 4K continuous zoom lens for area-scan inspection
• Review a telecentric in-line measurement system

Request Line Scan Lens Selection Support

Send POMEAS your camera model, active line length, pixel size, required line field of view, working distance, line rate and inspection target. The optical and application team can help verify coverage, magnification and installation suitability before quotation.