Bread-piece positioning: isolate the outline before guiding the next step
Three bread pieces appear bright against a dark field in the source red-bar capture. Their outlines provide a useful starting signal for a positioning trial, without a claimed robot-pick accuracy or line speed.
A usable outline is the first step; prove the handling task on real product variation.
Real camera capture
- Light in sourceLS-BAR-0521 · red
- EvidenceReal application-lab image
- Imaging kitCamera, lens and fixture proposed
- AcceptanceValidate on representative parts
Explore it in 3D
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.
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
Bread pieces vary in outline, crust colour and surface texture, and can overlap or deform.
A bright outline must remain stable across the real range of shapes before it can support a pick or placement calculation.
How it was solved
The source identifies a red bar light for bread positioning. It shows contrast at the piece boundaries rather than a measured position result.
Use the proposed bench camera to evaluate segmentation and orientation on representative pieces. Transfer any production arrangement to a suitable food-handling fixture; the linked station is a bench-development tool.
Why it works
- 1
The demonstrated illumination produces a bright part region on a dark background, separating the outline from much of the surface appearance.
- 2
A shape outline can support position estimation, but grasp planning also depends on height, overlap and permitted deformation.
Lighting application-lab catalog capture
Evidence you can inspect
Three separate bright outlines with different shapes are visible.
The catalog captions the example bread positioning and identifies the red 282 mm bar.
No source piece size, robot integration, pick success, positioning accuracy, hygiene qualification or transport speed is supplied.
From image contrast to a production decision
What to validate on your part
- 01
Include real product variation
Test crust, thickness, shape, crumbs and accepted texture across production batches.
- 02
Challenge placement
Include overlap, edge-of-field pieces, shadows and the allowed conveyor background variation.
- 03
Validate the downstream operation
Measure position and orientation errors independently, then verify the actual handling task.
From the demo to your test bench
Parts in this setup
LightTested
LS-BAR-0521
282 x 32 mm Bar light (LS-BAR-0521)
Red version of the 282 × 38 × 27 mm bar explicitly named for bread positioning. Printed emitting width 32 mm; the published L = 12 mm + X rule gives a derived 270 mm emitting length.
$309.00
In proposed setup
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
5 MP monochrome global-shutter camera proposed for a contrast trial. Confirm field, sampling, exposure and algorithm on the actual application.Not available in the United States. Available for delivery to other countries.
$819.00
In proposed setup
LensOur pick
LS-FFL-1454
16mm, F2.8, 1.1", C-mount, Macro lens (52 mm (-0.25X) to 546 mm (-0.03X)) (LS-FFL-1454)
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-MNT-0097
Camera stand with XZ adjustment and glass tray, height 600 mm (LS-MNT-0097)
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.
$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
| Tested light | LS-BAR-0521, red |
|---|---|
| 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 |
| Bar housing (printed) | 282 × 38 × 27 mm |
| Production scope | Proposed bench optical trial; production food-handling requirements are separate |
| Mounting (proposed) | LS-MNT-0097; 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.
Food, pharma and agriculture
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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.