Label wrinkles: illuminate the crease rather than the printed artwork
A second application on the same comparison sheet shows a label crease. Oblique line illumination strengthens the visible disturbance around the fold, supporting a practical wrinkle-detection trial.
Choose a light angle that separates a crease from normal label features.
Real camera capture
- Proposed light housing (spec)340 × 48 × 75 mm
- EvidenceReal application-lab captures
- Camera (proposed)2448 × 2048 monochrome
- Field (derived proposal)84.46 × 70.66 mm derived from printed 0.1x magnification
Explore it in 3D
Camera and available lens CAD are published models. Light envelopes and the station base/height use printed dimensions. Part shapes, brackets, holders, shielding and spacing are illustrative; they are not reconstructions of a source part or a complete mechanically validated assembly. Light paths explain the proposed arrangement and do not simulate optical performance. The proposed field is derived from the printed camera pixel dimensions and the stated lens magnification/working-distance pair, not measured from the source capture.
Lighting application-lab image sheet
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.
Oblique line light: Oblique line-light capture of the same label application; the crease region stands out more strongly.
The challenge
A crease may be only a small change in surface angle. Even brightness can hide it, while printing and label boundaries create unrelated image edges.
How it was solved
The source compares white LS-4LIN300 with white LS-4LIT300 on a label surface. These are the label captures, distinct from the aluminium-film application on the other half of the sheet.
The proposed station supports a local stationary label region. A real packaging line also needs product registration, motion timing and the required viewing coverage.
Why it works
- 1
Oblique illumination changes the returned intensity where the label bends.
- 2
The visible crease contrast is not a wrinkle-height measurement or a proof that every label finish will behave the same way.
Lighting application-lab image sheet
Evidence you can inspect
The crease region has stronger visible contrast in the oblique-light capture.
The source reports enhanced crease visibility; no calibrated wrinkle height, reject threshold or production recall is stated.
An application-lab lighting demonstration, not a customer deployment or a qualified production inspection. Proposed camera, lens, fixture and scene spacing require a fresh trial. Source observations do not establish a defect-size limit, accuracy guarantee or production false-call rate.
From image contrast to a production decision
What to validate on your part
- 01
Specify a reject
Use labels with known unacceptable folds and acceptable surface texture.
- 02
Challenge artwork and finish
Include printed edges, metallic inks, glossy film and normal label seams.
- 03
Test real registration
Repeat at product position, angle and speed limits; verify the crease remains inside the inspection region.
From the demo to your test bench
Parts in this setup
LightTested
LS-4LIT300
Oblique line scan light, 340 x 48 x 75 mm (LS-LSC-0303)
White oblique line light used in the source label comparison; 340 × 48 × 75 mm housing.
$1,109.00
In proposed setup
LightTested
LS-4LIN300
Natural cooling line scan light, 340 x 48 x 75 mm (LS-LSC-0243)
Conventional white comparison light; excluded from the proposed single-light kit.
$1,109.00
Separate test / alternative
CameraOur pick
MV-CS050-10GM(NPOE)
Hikrobot MV-CS050-10GM(NPOE) 5 MP GigE area scan camera, IMX264, Gen 2 basic version, Mono, Without PoE
Proposed 5 MP monochrome global-shutter camera, 2448 × 2048 pixels at 3.45 µm, C-mount. The source camera is unidentified. This NPOE model requires separate power and does not support PoE.Not available in the United States. Available for delivery to other countries.
$819.00
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-FFL-1454)
16 mm C-mount macro lens. Its printed 0.1x / 152 mm working-distance pair gives a derived 84.46 × 70.66 mm field on the proposed camera. Confirm focus, coverage and fixture clearance.
$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-MNT-0097)
600 mm column, 600 × 450 mm breadboard, glass tray and two lighting holders. Proposed bench fixture; actual load, travel, clamps, mounting fasteners and light clearance must be confirmed.
$629.00
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
| Source camera | Not identified in the source sheet |
|---|---|
| Camera and lens | Proposed catalog components |
| Proposed field | 84.46 × 70.66 mm derived from printed 0.1x magnification |
| Lens-to-part in proposed scene | 152 mm; printed working-distance pair |
| Mounting (proposed) | LS-BT-XZ-G-6-6045 · catalog test station with two 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. Light envelopes and the station base/height use printed dimensions. Part shapes, brackets, holders, shielding and spacing are illustrative; they are not reconstructions of a source part or a complete mechanically validated assembly. Light paths explain the proposed arrangement and do not simulate optical performance. The proposed field is derived from the printed camera pixel dimensions and the stated lens magnification/working-distance pair, not measured from the source capture.
Packaging, labels and print
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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.