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Industrial Optics & Lenses

Industrial Lenses for Machine Vision

Industrial camera lenses are selected from sensor format, working distance, distortion limits, and modulation transfer function (MTF). The lens still has to be checked against the camera, the working distance, and the feature size.

View Lens Products Calculate FOV and Working Distance Send the inspection condition
1.1 inch 12 megapixel industrial lens body for machine vision camera matching
Lens body and sensor fit evidence before focal length selection.
Selection references

Visual references for selection

These photographs show the shop or the catalog comparison. Send the part to match a series.

1 inch 20 megapixel machine vision lens product image
Reference 01High-resolution lens option for checking sensor format and resolving-power requirements.Send the part or the images with this condition.
Field of view and working distance calculator interface for machine vision lens selection
Reference 02FOV, working distance, sensor, and feature size inputs should be checked before final lens choice.Send the part or the images with this condition.

Selection considerations

Open the matching series, then send the part or the images.

What geometric parameters define industrial lens selection?

Field of view, working distance, and sensor size define the absolute physical limits. You must fix these boundaries before calculating required focal length or magnification.

Technical considerations
  • Set the camera sensor format, field of view, working distance, and smallest feature or measurement tolerance first.
  • Use the FOV and working-distance calculator as a starting point, then verify sensor coverage and installation envelope.
  • Record object-height variation because it affects focus, perspective, and magnification stability.

What lens specifications matter for machine vision applications?

The inspection task strictly dictates the optical architecture. Standard FA lenses fit general inspection, while telecentric optics are mandatory for precision dimensional measurement.

Technical considerations
  • Fixed focal length lenses are commonly compared for general area-scan inspection where cost, working distance, and field coverage fit the setup.
  • Telecentric lenses are considered when perspective error or magnification variation can affect dimensional inspection.
  • Macro lenses support close working distances and small features; line-scan lenses are matched to scan width and moving-target geometry.

How do you validate machine vision lens image quality?

Optical resolution has to be compared with the camera pixel size and the smallest feature. Catalog focal length alone does not confirm contrast under the real lighting.

Technical considerations
  • Check resolution at the smallest relevant feature with the intended sensor, aperture, and working distance.
  • Compare distortion, depth of field, edge sharpness, glare, wavelength transmission, filters, and mechanical mounting together.
  • A catalog focal length alone cannot establish a measurement result; confirm the configuration on samples and production-like geometry.

What information is needed to quote industrial lenses?

A complete specification accelerates sourcing and prevents integration failure. Always provide target feature size, object height variation, and spectral requirements when requesting engineering support.

Technical considerations
  • Share sensor model or format, pixel size, field of view, working distance, target feature, tolerance, and object-height range.
  • Include lighting method, wavelength, filter needs, part photos or drawings, line speed where relevant, and mounting restrictions.
  • For a combined optics and illumination discussion, link the lens selection to the machine vision lighting and custom-lighting paths.

Questions for the engineering discussion.

How do I select the right industrial camera lens for machine vision?

Start with the camera sensor format and pixel size, required field of view, working distance, smallest feature to resolve, object-height variation, and measurement tolerance. These inputs establish magnification, lens coverage, resolution demand, and depth-of-field trade-offs before a lens family is chosen.

When is a telecentric lens worth considering over a standard FA lens?

Consider telecentric optics when perspective variation, edge position, or magnification change across object height could affect a measurement. Check the actual lens distortion, telecentricity, depth of field and measurement tolerance against its datasheet and representative samples.

Can LuxMV supply 3D CAD STEP files and loaner demo lenses for testing?

Request available dimensional drawings, CAD file formats and evaluation options for the selected lens. Confirm availability and test terms with LuxMV before planning mechanical or optical validation.

Can an industrial lens be selected from focal length alone?

No. Focal length is only one input. A useful selection also checks sensor coverage, field of view, working distance, required feature contrast, aperture, distortion, depth of field, wavelength, and mounting constraints.

How do you match lens families to industrial cameras and target geometries?

Selecting a lens family requires exact sensor format matching. These catalog entries are starting points, not final lens recommendations. Confirm the selected model's data and drawing availability before mechanical design or measurement validation.

Lens family examples and selection checks
Catalog familyWhat to verify
2/3-inch 5 MP lens familyCompare focal length, aperture, working distance, distortion and mount for the specific model.
1.1-inch 20 MP lens familyCheck sensor coverage, image quality and mechanical fit against the camera and target.
1.1-inch 12 MP macro lens familyCompare magnification, field of view, working distance and body dimensions at the intended operating point.

What are the primary types of machine vision lenses?

Fixed focal length and telecentric lenses solve completely different inspection problems. Compare the four primary machine vision optical configurations across target requirements and applications:

Machine vision lens family comparison
Lens CategoryPrimary TargetTypical Focal / MagnificationKey Application Suitability
Fixed Focal Length (FA Lens)Standard 2D Area Scan6mm, 8mm, 12mm, 16mm, 25mm, 35mm, 50mm, 75mmGeneral inspection, presence/absence, barcode reading, robot guidance.
Telecentric Lens (Object / Bi-telecentric)Dimensional MeasurementMagnification depends on the selected modelCan reduce perspective-related measurement error; verify telecentricity, distortion, and usable depth against the selected lens data.
Macro LensClose-up Detail InspectionHigh magnification (0.5X - 5.0X)Micro-defect inspection on semiconductors, watch components, and medical devices.
Line-Scan LensContinuous Web / High-ResolutionLarge Image Circle (Ø30mm - Ø62mm)Matched to 2K, 4K, 8K, 16K line-scan cameras with M42, M58, M72, or V-mount.

What are the standard industrial lens mounts and flange distances?

Flange focal distance and mount threading must match the camera exactly. Mechanical interface compatibility between industrial camera sensors and optics dictates correct focus:

Industrial lens mount technical parameters
Mount StandardFlange Focal Distance (FFD)Thread SpecificationRecommended Sensor Format
C-Mount17.526 mm (0.69 in)1-32 UN (25.4 mm thread)Standard machine vision area-scan cameras up to 1.1" sensors.
CS-Mount12.526 mm (0.49 in)1-32 UN (25.4 mm thread)Compact cameras; can accept C-mount lenses with a 5mm spacer ring.
M42 Mount45.5 mm / VariableM42 × 1.0 or M42 × 0.75Large format area-scan (APS-C, Full Frame) and 2K - 8K line-scan sensors.
M72 / M90 / V-MountFlange distance per specM72 × 0.75 / V-grooveHigh-end 16K line-scan inspection and ultra-large image circle optics.

What are the essential inputs for automated lens selection?

Accurate technical inputs are what the optical selection is based on. Industrial lens selection is strongest when the camera, field of view, working distance, smallest feature, lighting method, and tolerance are evaluated together. Use these inputs before treating focal length as a final answer.

Machine vision lens selection inputs
InputWhat to provideSelection value
Sensor coverageSensor format, resolution, pixel size, and image circlePrevents vignetting and links lens resolving power to the camera.
Field of viewRequired target width and height in millimetersSets magnification and determines whether the lens can cover the part.
Working distanceAllowed lens-to-object distance and mechanical clearanceControls focal length class, lighting clearance, and installation envelope.
Feature resolutionSmallest feature or defect, tolerance, contrast, and pixel targetDetermines whether lens, camera, and lighting can resolve the task.
Depth and distortionObject-height variation, measurement tolerance, edge accuracy, and allowable distortionDetermines whether fixed focal, macro, telecentric, or line-scan optics should be compared.
FOV and working-distance calculatorOptics and lighting quote requirementsIndustrial camerasLighting selection guideDiscuss lens and lighting fit