Zipper teeth: preserve the interlocking pattern against the fabric
The real colour capture shows interlocking zipper teeth within a textured fabric strip. A white diffuse ring provides a trial recipe for preserving the tooth pattern while separating it from normal fabric detail.
Inspect the tooth pattern against real fabric variation before testing a defect rule.
Real camera capture
- Light in sourceLS-FLS116 · white
- EvidenceReal application-lab image
- Imaging kitCamera, lens and fixture proposed
- AcceptanceValidate on representative parts
Lighting application-lab catalog capture
What the camera saw
Cropped from the source test sheet; original test annotations are retained. Captures are not generated or enhanced. Drag a comparison slider, or open any image full size.
The challenge
Fabric texture and reflections at tooth edges can compete with the repeating interlock pattern.
A useful rule must distinguish accepted tooth and fabric variation from a verified missing or displaced element.
How it was solved
The source describes zipper inspection with the white diffuse ring. The visible evidence is a tooth section; the capture does not demonstrate a slider or pull inspection.
Test the proposed camera and field with known zipper states. Preserve the colour recipe if fabric-to-tooth contrast is part of the actual decision.
Why it works
- 1
A diffuse ring gives an illumination arrangement to try on both the shaped teeth and nearby fabric.
- 2
A clear repeated pattern is not proof of fastening strength, smooth operation or a detection rate.
Lighting application-lab catalog capture
Evidence you can inspect
The interlocking tooth pattern and textured pink fabric are visible.
The catalog identifies zipper inspection using the white LS-FLS116.
One source capture, without a labelled tooth defect, slider test, minimum feature size, operational result or classification statistics.
From image contrast to a production decision
What to validate on your part
- 01
Use verified tooth states
Include accepted geometry plus known missing, displaced or damaged elements near the rejection boundary.
- 02
Vary the fabric background
Test colour, weave, accepted markings and tension without treating all texture as damage.
- 03
Validate the required function
Measure appearance performance separately from any required closing, load or durability test.
From the demo to your test bench
Parts in this setup
LightTested
LS-FLS116
Shadowless light source (LS-FLS116)
White LS-FLS116 named in the source zipper-inspection example. Printed 116 mm outside diameter, 44 mm camera opening and 17 mm height. The proposed ring position is checked against the camera view; it is not a source setting.
$259.00
In proposed setup
CameraOur pick
MV-CS050-10GC
Hikrobot MV-CS050-10GC 5MP Area Scan Camera, GigE, IMX264, Color, Basic
5 MP colour global-shutter camera proposed to retain colour information. Confirm colour processing and sampling on the actual application.
$739.00
In proposed setup
LensOur pick
LS-KF1628M-ML
16mm, F2.8, 1.1", C-mount, Macro lens (52 mm (-0.25X) to 546 mm (-0.03X)) (LS-KF1628M-ML)
Proposed 16 mm C-mount macro lens at its printed 0.1x magnification / 152 mm working-distance pair. The proposed 2448 × 2048 sensor with 3.45 µm pixels gives a derived 84.456 × 70.656 mm field; confirm focus, coverage and residual distortion on the real sample.
$319.00
In proposed setup
Camera test stationOur pick
LS-BT-XZ-G-6-6045
Camera stand with XZ adjustment and glass tray, height 600 mm (LS-BT-XZ-G-6-6045)
600 mm column, 600 × 450 mm breadboard, XZ adjustment, glass tray and two lighting holders as listed. Proposed bench fixture; confirm loads, travel and camera/lens clamps.
$359.00
In proposed setup
"Tested" identifies the part named in the source. "Our pick" is a proposed alternative or supporting part. Confirm colour, optics, controllers, power supplies, cables and mounting before ordering.
The set-up
| Tested light | LS-FLS116, white |
|---|---|
| Source camera / lens | Not specified in the source image caption; proposed parts below |
| Proposed lens point | 0.1x at 152 mm, printed lens pair |
| Derived proposed field | 84.456 × 70.656 mm = sensor dimensions / 0.1x; not a source test field |
| Ring envelope (printed) | 116 mm OD × 44 mm opening × 17 mm high |
| Source geometry | Tooth section visible; no slider or pull demonstrated |
| Mounting (proposed) | LS-BT-XZ-G-6-6045; 600 mm column, 600 × 450 mm base, glass tray and two included lighting holders |
Mount the optics with intent
The station is an optical test bench, with its two lighting holders included in the catalog listing. The 3D column and base follow the published height and footprint. Carriages, clamps and part supports are schematic: confirm camera screw pattern, lens support, light fasteners, permissible load and actual travel before ordering.
Complete the electrical system
Select a controller against the exact light voltage, drive mode and power, then confirm camera data/power/I/O cables and a suitable PC. These are not silently added to the proposed optical kit.
Build this system
Start from this setup, adapt it to your part.
The configurator opens with this study's camera, lens, light and station picked. Swap any part, check fit and price, then buy or ask for a quote.
Camera and available lens CAD are published models. Lens and light envelopes use printed dimensions. The linked station uses its published base size and column height; carriage, brackets, fittings, parts and spacing are illustrative. Confirm load, travel, fasteners and clearances before ordering. Light paths explain the arrangement and do not simulate optical performance. Representative part geometry is illustrative, not reconstructed inspection evidence. The specimen and lighting angle are representative, not dimensions or settings recovered from the source capture.
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Make the next trial specific.
Tell us the part size, smallest defect or tolerance, available working distance, material and line speed. Include what a good part and a reject look like.
About this case study: the photos and camera images come from the application laboratory of the maker of the lighting and optics we sell, imaged on the parts shown; your results depend on your part, camera and set-up. This is an application-lab study, not a LumaSpec customer deployment. Source figures are reported results; proposed components require a fresh trial. The 3D scene illustrates the arrangement and does not simulate imaging performance.