Resin appearance on a component: inspect local contrast without claiming cure
A real diffuse-ring capture shows a rectangular leaded component with dark irregular regions along its upper corners. The source calls this resin detection; the image provides appearance contrast without identifying coverage, volume or cure state.
First identify the material regions, then validate the appearance rule.
Real camera capture
- Light in sourceLS-FRS88 · 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
Resin, substrate finish and reflections can all create dark or bright regions on a small component.
A material-presence rule needs a known reference for where the resin is required and what acceptable coverage looks like.
How it was solved
The source identifies a white diffuse shadowless ring and labels the task resin detection. It does not provide a material map identifying each region in the image.
Use the proposed narrower macro view and verified coated samples to test local appearance. Confirm illumination and camera clearance through the ring opening on the actual fixture.
Why it works
- 1
Diffuse reflected light can preserve differences between local surface regions without relying on one narrow highlight.
- 2
Appearance does not determine resin chemistry, thickness, cure or bond quality.
Lighting application-lab catalog capture
Evidence you can inspect
Dark irregular areas are visible along the upper corners of a lighter rectangular face with two leads above it.
The source captions this resin detection using the white LS-FRS88.
The material boundaries, required coverage, thickness, cure state and detection performance are not documented.
From image contrast to a production decision
What to validate on your part
- 01
Identify the required material region
Use a process drawing and verified coated/uncoated samples rather than assigning every dark patch to resin.
- 02
Include acceptable finish changes
Test substrate texture, resin batches and permitted surface appearance.
- 03
Verify process properties separately
Keep visual presence or spread checks separate from any required thickness, cure or bond test.
From the demo to your test bench
Parts in this setup
LightTested
LS-FRS88
78 mm Shadowless light source (LS-FRS88)
White LS-FRS88 diffuse shadowless ring explicitly identified for resin detection. Printed outer diameter 88 mm, inner opening 60 mm and height 38 mm. The narrow proposed field suits a representative small component.
$189.00
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.
$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)
Proposed 35 mm C-mount macro lens at its printed 0.25x magnification / 150 mm working-distance pair. The proposed 2448 × 2048 sensor with 3.45 µm pixels gives a derived 33.7824 × 28.2624 mm field; confirm focus, coverage and residual distortion on the real sample.
$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
| Tested light | LS-FRS88, white |
|---|---|
| Source camera / lens | Not specified in the source image caption; proposed parts below |
| Proposed lens point | 0.25x at 150 mm, printed lens pair |
| Derived proposed field | 33.7824 × 28.2624 mm = sensor dimensions / 0.25x; not a source test field |
| Ring envelope (printed) | 88 mm OD × 60 mm opening × 38 mm high |
| 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.