Machine Vision Lens for Bottle and Cap Inspection: How to Check Neck Finish, Cap Alignment, Tamper Ring and Container Profile

Bottle and cap inspection is one of the most common machine vision applications across beverage filling, food processing, pharmaceutical packaging, personal-care products and automated bottling lines. A single inspection station may need to verify whether a cap is present, determine whether the closure is centered and correctly seated, inspect the tamper ring, evaluate the bottle-neck profile, check the neck finish, confirm container shape and detect visible edge or profile deviations. These inspection targets vary greatly in physical size: the complete bottle may be hundreds of millimetres tall while the cap displacement, tamper-ring gap or neck-finish deviation that determines rejection may be only a fraction of that dimension. Selecting the correct machine vision lens for bottle and cap inspection therefore requires careful control of field of view, sensor utilization, focal length, working distance and optical resolution.

Buyers searching for machine vision lens for bottle inspection, cap inspection camera lens, bottle neck inspection machine vision, tamper ring inspection camera, cap alignment inspection, bottle profile inspection, or industrial camera lens for bottling line inspection usually face the same fundamental question: should the vision system inspect the complete container in one image, or should more sensor resolution be dedicated to the neck, cap and tamper-ring region? A lens that captures the full bottle conveniently may provide too little detail for closure alignment, while a tightly framed neck inspection may not show enough container geometry for whole-profile verification.

Kyptec Automation® provides a broad Machine Vision Lens portfolio covering multiple focal lengths and industrial camera formats, with current conventional lens families including 5 MP, 10 MP and 25 MP options. The portfolio spans 2/3", 1" and larger-format lens families, allowing OEM machine builders and system integrators to select optics according to the physical bottle area that must be inspected and the smallest closure or profile variation that must be resolved.

Start With the Bottle or Closure Feature That Determines Rejection

“Bottle inspection” can describe several very different optical tasks. One line may need only to confirm that a bottle and cap are present. Another may reject a container because the closure is tilted, the neck profile is damaged, the tamper ring is incomplete or the cap sits slightly higher on one side.

These requirements should not be assigned the same lens specification.

The inspection should begin with the smallest visible dimensional or positional difference that must reliably trigger rejection. Once this is known, the required image scale can be calculated and the Machine Vision Lens selected around the actual FOV and working distance.

Cap Presence Is Much Easier Than Cap Alignment

Detecting whether a cap exists is usually a relatively large-feature inspection. A completely missing closure produces a substantial difference in the bottle-top image.

Cap alignment is more demanding because the closure can be present while shifted laterally, tilted, incorrectly seated or positioned at an abnormal height.

A vision system that performs perfect cap-presence inspection may therefore still lack enough optical detail for cap alignment inspection.

The lens should be qualified using the smallest cap-position error the production line needs to reject, not only with missing-cap samples.

Cap Centering Requires a Bottle-Neck Reference

A cap cannot be classified as laterally misaligned without a reference.

The inspection system may compare the cap center with the neck center, bottle centerline or another stable container feature.

This means the FOV needs enough surrounding bottle-neck geometry to establish the reference while still devoting sufficient sensor pixels to the closure boundary.

Cropping too tightly around the cap can improve local magnification but remove the geometry needed to determine whether the cap is centered correctly.

Cap Tilt Produces Different Edge Heights

A tilted cap often appears with one side higher or lower than the opposite side.

The vision system can evaluate closure-edge height at several positions, but the difference must be sufficiently represented in pixels.

If a rejectable cap tilt produces only a one- or two-pixel height difference, classification may become unstable.

The Machine Vision Lens should therefore provide enough magnification that the smallest required tilt produces a meaningful measurable change across the cap boundary.

Calculate Pixels per Millimetre at the Closure Region

A useful first calculation is:

Pixels per millimetre = number of sensor pixels across the inspection direction ÷ physical FOV in millimetres

Suppose a camera provides 4,000 horizontal pixels and the bottle-neck inspection field is 80 mm wide. The resulting sampling is approximately 50 pixels/mm.

A 0.4 mm lateral cap displacement would represent approximately 20 pixels under simplified geometry.

If the same camera is used with a 200 mm FOV, sampling drops to approximately 20 pixels/mm and the same displacement occupies only about 8 pixels.

This is why bottle inspection FOV should be selected from the smallest required closure feature, not simply from the maximum area the lens can capture.

Neck Finish Inspection Requires Local Geometric Detail

The bottle neck is more than the opening at the top of the container. Its visible profile can include sealing surfaces, outer boundaries and other closure-related geometry.

If the inspection is designed to evaluate neck-finish shape, the Machine Vision Lens should provide enough image scale to preserve the expected contour around the inspection region.

A small chip or profile deviation can occupy only a tiny fraction of the complete bottle height.

For that reason, neck-finish inspection commonly benefits from dedicating more of the sensor to the upper container region instead of imaging the entire bottle unnecessarily.

A 25 MM 10 MP Lens Can Provide Controlled Neck-and-Cap Framing

For compatible 2/3" camera systems, the Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a 25 mm focal-length option. The current official product page specifies model KL-1228, 10 MP resolution, 25 mm focal length, C-mount, 2/3" image format and an F2.8–16 aperture range.

A 25 mm configuration can be evaluated when the camera should concentrate on a bottle neck, cap or closure region rather than capturing a very broad production scene. Final suitability depends on sensor dimensions, stand-off, bottle-neck width and the minimum cap or tamper-ring deviation to be detected.

Tamper-Ring Inspection Is an Annular-Feature Problem

Tamper rings are particularly interesting optically because the critical feature forms a narrow region below the closure.

The ring may need to be checked for presence, continuity, relative position, incomplete separation or obvious deformation.

A wide whole-bottle image may leave the tamper-ring region represented by very few vertical pixels.

A dedicated closure FOV can allocate substantially more sensor area to this narrow inspection zone.

Tamper-Ring Continuity Should Be Checked Across the Visible Width

A defect may occur at one local position rather than across the entire ring.

Qualification should therefore include defects at several positions within the visible circumference or projected closure region.

If only a center defect is tested, image quality at outer cap positions may be overlooked.

The Machine Vision Lens should preserve sufficient detail across the complete closure width used by the inspection algorithm.

Bottle Profile Inspection Is a Different Optical Requirement

Whole-container profile inspection can include bottle width, shoulder shape, body outline, base profile and overall symmetry.

This requires a much larger FOV than localized neck-and-cap inspection.

The optical design therefore becomes a trade-off between complete-container coverage and the amount of pixel resolution remaining for small profile deviations.

A system designed primarily for container profile verification should not automatically be expected to provide the same cap-detail sensitivity as a dedicated closure inspection system.

A 12 MM Lens Can Support Wider Bottle or Multi-Feature Coverage

When a compatible 2/3" camera needs a wider physical field, the Kyptec Automation® KL-1224 12 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a shorter focal-length option. Its current official specifications list model KL-1224, 12 mm focal length, 10 MP resolution, C-mount, 2/3" format and F2.8–16 aperture range.

This focal-length class can be considered where a larger bottle region must fit inside the available machine geometry. The engineer should verify that widening the field does not reduce closure or profile sampling below the required level.

Bottle Shoulder Symmetry Can Be Checked From the Profile

Some container defects are visible as asymmetric shoulder geometry rather than local surface defects.

If the bottle is positioned consistently, a profile-based inspection can compare left and right boundaries or evaluate the complete silhouette against an expected contour.

The Machine Vision Lens should provide sufficient vertical and horizontal image detail across the relevant shoulder region.

The complete profile should also remain within a part of the image where useful edge definition is maintained.

Container Width Measurement Requires Stable Image Scale

If bottle diameter or width is measured rather than merely compared visually, the camera-to-container geometry must remain stable.

Movement toward or away from the lens changes magnification in a conventional Machine Vision Lens system.

A container that shifts axially can therefore appear slightly larger or smaller even though its real physical dimensions have not changed.

For measurement applications, the inspection plane should be controlled and calibration should be performed only after the final lens position, working distance and focus are fixed.

Bottles of Different Heights Create a Sensor-Utilization Problem

A production line may handle several bottle sizes.

The tallest bottle can determine the vertical FOV, while a much smaller container may occupy only a portion of the sensor.

If the same inspection must detect equally small closure errors across every format, the smaller bottle may receive less effective image sampling.

Each bottle family should therefore be evaluated individually rather than assuming a successful setup for the largest bottle automatically provides equal performance for every smaller product.

Cap Diameter and Neck Diameter Should Be Treated Separately

A closure can be larger than the bottle neck, and both may need measurement.

The cap may need to be checked for diameter, centering or seating while the neck provides the positional reference.

The Machine Vision Lens should provide enough resolution on both edges when these dimensions are compared.

If one boundary is poorly sampled, the calculated relationship between closure and neck can become less repeatable.

High-Resolution Lenses Help When Full Bottle Coverage and Fine Closure Detail Must Coexist

Some inspection machines need one image to include a large container while still resolving relatively small cap, neck or profile deviations.

In that situation, simply reducing the FOV may not be possible.

A higher-resolution camera-lens system can provide more total spatial samples across the necessary bottle area.

For compatible larger-format systems, the Kyptec Automation® KL-1238 16 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 16 mm, 25 MP C-mount option with an F2.8–16 aperture range. The official product title identifies it as a 1.1" format lens, while the current detailed specification field lists 1/1".

This broader high-resolution configuration can be evaluated where a large bottle region must remain visible while closure geometry and smaller profile features still require substantial image detail.

A 25 MM 25 MP Lens Can Balance Coverage and Closure Detail

For compatible larger-format high-resolution camera systems, the Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 25 mm focal length, 25 MP resolution, C-mount and F2.8–22 aperture range. The product title uses the 1.1" format designation.

This type of Machine Vision Lens can be evaluated where the application requires more controlled framing than a short focal length while still retaining high total resolution for neck finish, cap edge and tamper-ring inspection.

Higher Resolution Should Be Used on the Bottle, Not on Empty Conveyor Area

A higher-megapixel lens-camera system is most useful when the additional pixels are concentrated on the actual inspection target.

If a 25 MP system is configured with a much wider field merely because the resolution is available, the expected improvement in cap or neck sampling may be reduced substantially.

The stronger optical approach is to keep the field close to the real bottle or closure requirement and use additional resolution to increase pixels on the critical geometry.

A 35 MM 1-Inch Lens Can Support Greater Stand-Off

Bottling machines often contain rails, guarding, fill heads, capper components or other hardware that limits camera placement.

Where a compatible 1" camera needs more working distance while maintaining tighter framing, the Kyptec Automation® KL-1218 35 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens provides a 35 mm, 10 MP C-mount configuration with an F1.4–16 aperture range.

This focal-length class can be considered for bottle-neck, cap or localized profile inspection where additional stand-off is useful and a very wide scene is unnecessary.

A 50 MM 25 MP Lens Can Support Localized Closure Inspection

When only the neck, cap or tamper-ring zone needs high-detail inspection and greater working distance is available, a longer focal length can provide tighter framing.

The Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 50 mm, 25 MP C-mount option with an F2.8–22 aperture range in Kyptec Automation®'s current larger-format family.

This type of configuration can be considered when maximizing image scale on a cap edge, neck profile or narrow tamper-ring region is more important than imaging the whole bottle.

Container Transparency Does Not Change the Basic FOV Calculation

Clear bottles can introduce additional optical complexity because multiple visible surfaces may appear within the image, but the fundamental lens-selection calculation still begins with physical FOV and smallest required feature.

The Machine Vision Lens must first provide enough spatial sampling for the neck, cap or profile being inspected.

If the application depends specifically on a transparent boundary, the relevant visible plane must then be validated under the final production geometry.

Cap Color Does Not Determine Focal Length

Different closure colors can produce different image contrast, but they do not independently determine focal length.

Focal length should be selected from sensor format, required physical FOV and working distance.

This separation is important because brightness problems should not lead to unnecessary changes in geometric lens selection.

First establish the correct optical field and image scale; then verify the production appearance of each closure variant.

Cap Height Inspection Needs a Stable Bottle Reference

A cap can be present and centered but sit too high or too low.

To inspect this condition, the system needs a reliable vertical reference on the neck or shoulder region.

The FOV must therefore include both the cap boundary and the reference feature used to judge seating height.

The Machine Vision Lens should provide enough vertical pixels that the smallest rejectable seating difference produces a measurable displacement.

Bottle Rotation Can Change the Visible Profile

A rotationally symmetric bottle may look similar from several orientations, while asymmetric containers can present noticeably different silhouettes as they rotate.

If profile inspection is required, allowable rotational variation should be included in qualification.

The lens cannot recover a feature that rotates behind the container or becomes geometrically occluded.

Mechanical orientation should therefore be controlled where a specific profile region must always remain visible.

Conveyor Position Variation Directly Affects Required FOV

If bottles move laterally across the conveyor, the optical field must be large enough to contain the full required inspection area at every valid position.

That extra margin reduces pixels/mm.

Mechanical guidance can therefore improve optical performance by allowing a smaller field and placing more sensor resolution on the container.

This trade-off is particularly important when the same image must evaluate both full-container geometry and small closure deviations.

Bottle Neck Height Variation Can Affect Focus

Container tops may not always appear at exactly the same object distance, particularly when bottle heights or conveyor support levels vary.

A small focus change may not affect simple presence inspection but can reduce reliability when neck edges or tamper-ring boundaries must be measured precisely.

The final aperture and focus should therefore be qualified across the expected height variation while monitoring the smallest required closure feature.

Aperture Should Preserve Edge Detail Without Sacrificing Required Focus Tolerance

Stopping down the aperture can increase depth-of-field tolerance, which may help accommodate slight bottle-position variation.

However, stopping down excessively can reduce fine spatial detail because of diffraction.

The correct aperture is therefore not simply the smallest possible opening.

It should be selected by testing real cap, neck and tamper-ring acceptance limits at the maximum expected height variation.

Multiple Bottles in One Image Reduce Resolution per Bottle

A production system may attempt to inspect two or more bottles simultaneously to increase throughput.

The overall field then becomes wider, causing each bottle to occupy fewer sensor pixels.

The minimum cap displacement, tamper-ring defect or profile variation should therefore be calculated against the full multi-bottle FOV, not the dimensions of one bottle alone.

A higher-resolution optical system can help when multi-bottle inspection is mandatory, but the actual pixels per feature still need to be verified.

Digital Zoom Cannot Recover Missing Neck or Cap Detail

Software enlargement can make a closure easier to view on a display, but it cannot create physical information that the optical system never captured.

If the tamper-ring feature occupies only three sensor pixels, enlarging that area four times does not create the detail of a genuinely twelve-pixel-wide feature.

The solution is tighter optical framing, higher physical sensor resolution, or a more suitable Machine Vision Lens configuration.

High-Speed Bottling Lines Still Need Sufficient Spatial Resolution

Bottling and capping machines can operate at high production speeds, but production rate does not change the fundamental spatial requirement.

Each captured image must still provide enough pixels for cap alignment, neck profile and tamper-ring inspection.

Optical selection should therefore be based on the smallest required defect or displacement while ensuring the chosen field supports the physical bottle position at production speed.

Qualification Should Use Minimum Rejectable Closure Defects

A completely missing cap or severely tilted closure is useful for initial system setup but is not sufficient for final optical validation.

Qualification samples should include the smallest cap offset, minimum seating-height difference, smallest tamper-ring irregularity and smallest neck-profile deviation the production process requires the system to reject.

These samples should be tested throughout the valid bottle-position range.

This provides a much more realistic basis for approving the Machine Vision Lens.

Why Kyptec Automation® Is a Practical Choice for Bottle and Cap Inspection

Kyptec Automation® offers a broad Machine Vision Lens collection covering multiple focal lengths, industrial camera formats and several optical resolution classes. The current portfolio includes conventional 5 MP, 10 MP and 25 MP lens families, which gives OEM machine builders and system integrators useful flexibility when bottle-inspection applications range from broad container profiles to localized high-detail closure inspection.

For compatible 2/3" systems requiring moderate controlled framing, Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a 25 mm, 10 MP option. When a wider bottle field is needed on a compatible 2/3" camera, Kyptec Automation® KL-1224 12 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a shorter focal-length alternative.

For compatible 1" systems requiring additional working distance, Kyptec Automation® KL-1218 35 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens provides a longer focal-length option. For demanding applications where a broad container region and fine closure details need to coexist, Kyptec Automation® KL-1238 16 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens and Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provide higher-resolution larger-format choices.

Where localized neck, cap or tamper-ring inspection needs greater image scale and sufficient machine stand-off is available, Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a longer focal-length high-resolution option. This range enables lens selection around the real bottle geometry, smallest closure deviation, sensor format and camera position rather than forcing one focal length to serve every bottling-line inspection task.

Frequently Asked Questions About Machine Vision Lenses for Bottle and Cap Inspection

1. What is the best Machine Vision Lens for bottle and cap inspection?

The correct lens depends on whether the system needs whole-bottle coverage, localized closure inspection or both. The engineer should define the maximum bottle dimensions, smallest cap or neck deviation, camera sensor format and available working distance before choosing focal length. Kyptec Automation® offers multiple focal lengths and resolution classes, allowing a lens to be selected around the real physical inspection field rather than relying on one generic bottle-inspection setup.

2. How much resolution is needed to detect a misaligned bottle cap?

Start with the smallest lateral or vertical cap displacement that must cause rejection. Calculate pixels/mm from the final physical FOV and camera resolution, then determine how many pixels correspond to that displacement. A cap can be obviously present but still require substantially more image sampling to detect a small centering or seating error.

3. Can Machine Vision detect a tilted bottle cap?

Yes, provided the cap edges and a stable bottle-neck reference are sufficiently resolved. A tilted closure commonly produces a measurable height or angle difference between opposite sides. The Machine Vision Lens should provide enough image scale that the smallest permitted tilt produces a repeatable change rather than a one-pixel fluctuation.

4. Can Machine Vision inspect a bottle tamper ring?

Yes. Tamper-ring inspection can evaluate the narrow region below the cap for expected position, continuity or visible deformation. Because this region is much smaller than the complete bottle, a dedicated neck-and-cap FOV can provide significantly better sampling than a very wide whole-container image.

5. Which Kyptec Automation® lens can be considered for controlled bottle-neck inspection on a 2/3-inch camera?

For a compatible 2/3" system, Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides 25 mm focal length, 10 MP resolution, C-mount, 2/3" format and F2.8–16 aperture range. Its actual suitability should be verified from bottle-neck dimensions, sensor size, stand-off and minimum closure deviation.

6. Which Machine Vision Lens can be considered when a wider bottle FOV is required?

For compatible 2/3" cameras, Kyptec Automation® KL-1224 12 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a 12 mm, 10 MP C-mount option with an F2.8–16 aperture range. A wider physical field can be useful for more complete container coverage, but the resulting pixels/mm should still satisfy the smallest cap or profile requirement.

7. Can one Machine Vision Lens inspect the cap, neck and bottle profile together?

Potentially, but the complete bottle increases the required physical FOV and therefore reduces the pixels/mm available at the closure. Whether one image is sufficient depends on container dimensions, camera resolution and the smallest closure defect. When cap tolerances are significantly smaller than bottle-profile tolerances, separate or tighter optical framing may provide stronger inspection performance.

8. How can Machine Vision check whether a cap is centered on the bottle neck?

The system can determine the cap's center or lateral boundaries and compare them with the center or boundaries of the neck. The Machine Vision Lens must therefore provide sufficient resolution on both structures and include enough surrounding geometry to establish a stable reference. A cap can be present and fully seated while still being laterally displaced.

9. When should a 25 MP Machine Vision Lens be considered for bottle inspection?

A higher-resolution lens-camera system becomes useful when a relatively large bottle region must remain visible while small neck, cap or profile variations still require substantial image sampling. The additional pixels should be concentrated on the actual bottle rather than spent on unnecessary conveyor background. Kyptec Automation® currently offers several focal lengths within its 25 MP larger-format Machine Vision Lens family.

10. Which Kyptec Automation® lens can be considered for wider high-resolution container inspection?

For a compatible larger-format system, Kyptec Automation® KL-1238 16 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 16 mm, 25 MP C-mount configuration with an F2.8–16 aperture range. It can be evaluated where a broad bottle region must remain visible while retaining higher total optical resolution.

11. Which Kyptec Automation® lens can provide more controlled high-resolution cap and neck framing?

For a compatible larger-format camera system, Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 25 mm, 25 MP C-mount configuration with an F2.8–22 aperture range. This focal-length class can be evaluated where high resolution is needed without the very broad FOV of a shorter lens.

12. Can a 50 mm Machine Vision Lens be used for detailed bottle-cap inspection?

Yes, if sufficient working distance is available and the inspection can be localized around the closure. Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 50 mm, 25 MP C-mount option with an F2.8–22 aperture range for compatible systems. Tighter framing can devote more sensor pixels to cap edges, neck profile and tamper-ring features.

13. How does conveyor position variation affect bottle inspection accuracy?

Lateral movement forces the vision system to use a larger FOV so the container remains inside the image at every valid position. A larger physical field reduces pixels/mm on the bottle. Better mechanical guidance can therefore allow tighter optical framing and improve effective resolution without changing the camera.

14. Why can a vision system detect a missing cap but fail to detect a cap that is slightly too high?

A missing cap produces a very large image difference, while incorrect seating may shift the cap edge by only a fraction of a millimetre. The second inspection therefore requires much higher positional sensitivity. Lens selection should be based on the smallest seating-height deviation rather than the easiest missing-cap defect.

15. Can the same inspection station handle multiple bottle sizes?

Yes, but each format should be checked separately. The largest bottle may determine the overall FOV, while a smaller bottle can occupy considerably fewer pixels. If the smaller product has an equally tight cap or neck tolerance, it may need more optical resolution than expected even though its physical dimensions are smaller.

16. What information should I provide before buying a Machine Vision Lens for bottle and cap inspection?

Provide the bottle width and height, neck and cap dimensions, smallest lateral or vertical cap error, tamper-ring feature size, required bottle-profile tolerance, camera sensor format and resolution, available working distance and normal conveyor position variation. These values allow a Kyptec Automation® Machine Vision Lens to be evaluated from actual FOV and resolution requirements rather than focal length alone.

17. Where can I compare Kyptec Automation® Machine Vision Lenses for bottle, neck and cap inspection?

The Kyptec Automation® Machine Vision Lens collection includes multiple focal lengths across 5 MP, 10 MP and 25 MP conventional resolution classes and several industrial image-format families. Buyers can first establish the required container FOV, smallest closure deviation, sensor format and working distance, then compare Kyptec Automation® Machine Vision Lens options that provide the necessary bottle coverage without sacrificing excessive sensor resolution to unused image area.

Design Bottle and Cap Inspection Around the Smallest Closure or Profile Error

Reliable automated bottle inspection requires recognizing that whole-container presence, cap alignment, tamper-ring inspection, neck-finish verification and profile measurement do not have the same optical requirement. A complete bottle can look perfectly clear in a machine vision image while a small cap offset, slight closure tilt or narrow tamper-ring irregularity remains below the useful resolution of the system. For this reason, the Machine Vision Lens should be selected according to the smallest visible difference that determines production acceptance, not simply according to total bottle height.

The strongest design process begins by defining the largest required physical FOV and the smallest cap, neck, tamper-ring or profile variation that must be resolved. Product-position tolerance is added only where necessary, after which pixels/mm can be calculated from camera resolution. Sensor format, focal length and working distance can then be selected so the relevant bottle area uses the available sensor efficiently. Minimum rejectable closure defects should be tested at different valid conveyor positions, bottle heights and container formats before the optical configuration is approved.

Kyptec Automation® provides a broad Machine Vision Lens portfolio spanning multiple focal lengths, industrial image formats and 5 MP, 10 MP and 25 MP conventional lens families. By matching the appropriate Kyptec Automation® Machine Vision Lens to bottle dimensions, neck and cap geometry, minimum closure displacement, required container profile, camera sensor format and available working distance, OEM machine builders and system integrators can establish a stronger optical foundation for automated bottle inspection, cap alignment verification, neck-finish analysis, tamper-ring inspection and container-profile quality control.