4K 35mm Line Scan Lens for 32mm Image Circle Cameras

Who Is This 35mm Line Scan Lens Designed For?

This model is suitable for machine vision system integrators, automation equipment manufacturers and factory vision engineers building 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 35mm focal length for industrial line imaging
• Low distortion for width, edge and pattern inspection
• Selectable magnification and working-distance configurations
• M42, M72 or F-Mount integration

Why Use a Line Scan Lens?

A line scan camera captures one line of pixels at a time while the product or camera moves. This makes line scan imaging especially useful for continuous materials, long products, rotating objects and high-speed production lines.

Compared with a conventional area-scan system, a line scan setup can provide continuous image acquisition across a large product length without requiring the complete object to fit inside one frame.

• Continuous web and material inspection
• PCB and circuit trace inspection
• Surface scratch, stain and texture detection
• Color consistency and pattern inspection
• Long-part and edge inspection
• High-speed automated production inspection

Ø32mm Image Circle and 7µm Camera Compatibility

The PMS-LLA01-3528M 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 leaves additional coverage margin for alignment and sensor geometry.

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

Magnification, Working Distance and Conjugate Distance

The approximate object-side line field of view is calculated by dividing the active line-sensor length by the 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, circuit trace analysis and pattern comparison.

Relative illumination is specified at 65%. Lighting uniformity, exposure time and the mechanical alignment of the camera and object remain important for achieving consistent brightness across the full line.

For applications that require highly stable magnification when object height changes, a telecentric line scan optical solution should be evaluated.

Mount Options and System Integration

The lens can be configured with M42, M72 or F-Mount interfaces. The correct mount should be selected according to the camera flange, sensor position and mechanical installation.

• Focal length: 35mm
• Aperture range: F2.8-F16
• Maximum image circle: Ø32mm
• Resolution: 7µm
• Distortion: <0.1%
• Relative illumination: 65%

Typical Line Scan Applications

• 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 dimensional 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 0.05X, 0.10X or 0.15X
• The available working distance is approximately 700mm, 350mm or 240mm
• Your application requires low distortion and uniform line imaging
• M42, M72 or F-Mount integration is suitable

When to Consider Another Optical Solution

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

Information Required for Line Scan Lens Selection

To confirm whether the PMS-LLA01-3528M 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 sensor length, pixel size and image-circle compatibility
• Selection of magnification and working distance
• Support for M42, M72 and F-Mount 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, 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 field of view can the lens provide?

The object-side line field of view depends on the active sensor length and magnification. With a 28.7mm active line, the approximate line fields are 573mm at 0.05X, 287mm at 0.10X and 191mm at 0.15X.

What mount options are available?

The source specification lists M42, M72 and F-Mount options. Confirm the exact camera flange 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 lens 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.