Tablet-shell edges: make a reflective contour easier to locate
The supplied coaxial-light capture turns a curved housing edge into a strong boundary. It is a useful first step for locating or comparing a shell contour before a calibrated measurement study.
A clear contour still needs an unambiguous physical datum.
Real camera capture
- Proposed light housing (spec)111 × 50 × 50 mm
- EvidenceReal lighting-lab captures
- Camera (proposed)2448 × 2048 monochrome
- Field (derived proposal)33.78 × 28.26 mm
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.
The challenge
A reflective housing can show its surroundings more strongly than its own edge. Ribs, curves and machining marks create additional candidate boundaries.
How it was solved
The source identifies white LS-3COH40, a high-brightness coaxial light. Its 111 × 50 × 50 mm housing and 40 × 40 mm emitter are printed catalog values.
The camera, lens and bench fixture are proposed. The shell outline in 3D is illustrative and the source gives no full-part scale.
Why it works
- 1
Illumination near the viewing axis can make the reflective surface and neighbouring background separate clearly.
- 2
A sharp-looking boundary is not a metrology result. Define which physical edge is being detected before calibrating its position.
Lighting application-lab image sheet
Evidence you can inspect
The curved shell boundary and adjacent surface features are clearly separated in the supplied capture.
The sheet reports edge recognition; it supplies no edge-location uncertainty, tolerance or speed.
A lighting application-lab demonstration. The source supplies no customer deployment, defect-size limit, repeatability study or production false-call data. Proposed camera, lens, field, mounting and spacing are not the original tested system.
From image contrast to a production decision
What to validate on your part
- 01
Choose the reference edge
Document whether the outer silhouette, inner lip or a machined transition defines the part datum.
- 02
Vary surface finish
Include acceptable polished, brushed and coated housings at the expected tilt range.
- 03
Calibrate and repeat
Check edge position against a reference artefact and repeated fixture loading before assigning a tolerance.
From the demo to your test bench
Parts in this setup
LightTested
LS-3COH40
40 x 40 mm High power coaxial light (LS-3COH40)
White coaxial light identified in the source; 111 × 50 × 50 mm housing, 40 × 40 mm emitting surface. Confirm its independent fan and light power connections.
$109.00
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, 2448 × 2048 pixels, 3.45 µm pixels and C-mount. Proposed for a bench contrast trial; the source does not identify its camera. Requires separate camera power; this NPOE model does not support PoE.
$819.00
In proposed setup
LensOur pick
LS-KF3528M-ML
35mm, F2.8, 1.1", C-mount, Macro lens (59 mm (-0.7X) to 150 mm (-0.25X)) (LS-KF3528M-ML)
35 mm C-mount macro lens; its printed 0.25x at 150 mm working distance gives a derived 33.78 × 28.26 mm field on the proposed camera. Confirm light coverage and focus on the actual part.
$339.00
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
| Lighting evidence | Application-lab source captures |
|---|---|
| Camera and lens | Proposed catalog components; source camera unspecified |
| Proposed field (derived) | 33.78 × 28.26 mm at 0.25x |
| Lens working distance (spec) | 150 mm at the listed magnification |
| Mounting (proposed) | LS-BT-XZ-G-6-6045 · 600 mm station, glass tray and 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. 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. The part geometry is illustrative and is not reconstructed from the camera image. The proposed field is derived from the printed lens magnification and camera pixel dimensions; actual coverage and focus need a bench check. Representative part geometry is illustrative, not reconstructed inspection evidence.
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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.