Loudspeaker adhesive: follow the bead around a curved assembly
The source UV image makes a loudspeaker perimeter bead appear bright around a dark central diaphragm. It is useful evidence for a glue-path trial where the curved perimeter matters more than average image brightness.
Inspect where the bead must be, not just how much of the image is bright.
Real camera capture
- Method365 nm UV excitation
- EvidenceReal application-lab capture
- SetupSource light identified; imaging kit proposed
- AcceptanceValidate on your own 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. The illustrated ring position keeps the drawn viewing envelope inside its central aperture; verify vignetting and illumination on the actual sample. Representative part geometry is illustrative, not reconstructed inspection evidence.
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
A curved speaker frame mixes adhesive, metal and diaphragm surfaces within a small field.
Uniform brightness alone cannot establish whether the bead is present at every required location.
How it was solved
The source identifies a 365 nm UV ring for loudspeaker adhesive inspection. Use a perimeter region of interest rather than a single whole-image brightness threshold.
The proposed current UV ring and imaging kit require a new trial on the actual assembly; no source exposure or filter specification is supplied.
Why it works
- 1
Compatible adhesive can produce strong visible contrast under UV excitation while nearby material remains darker.
- 2
The visible bright perimeter supports glue-location inspection; it does not establish acoustic sealing or mechanical bond strength.
Lighting application-lab catalog capture
Evidence you can inspect
A bright adhesive region is visible around the dark speaker centre, with strong local brightness variation.
The source captions the image UV adhesive inspection for a loudspeaker and identifies 365 nm ring illumination.
No adhesive volume, bead width, cure state, air-leak result or acoustic result is supplied.
From image contrast to a production decision
What to validate on your part
- 01
Mask the actual bead route
Define required locations from the assembly drawing, including corners and overlap areas.
- 02
Vary material and cure
Test glue batches, substrate colour and acceptable cure variation.
- 03
Validate the failure modes
Include missing glue and unwanted spread, then correlate with the required seal or bond test.
From the demo to your test bench
Parts in this setup
LightOur pick
LS-RNG-0884
62.4 mm UV light, LS-RNG-S44 series (LS-RNG-0884)
Current 365 nm UV ring proposed for the sample trial. The source identifies a different 74 mm-family ring version; confirm aperture, illumination angle and adhesive response.
$269.00
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 for colour and angle-coded contrast; confirm colour processing and exposure in the trial.Not available in the United States. Available for delivery to other countries.
$739.00
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. The illustration uses its printed 0.1x magnification at 152 mm working distance. The proposed camera sensor gives a derived 84.456 × 70.656 mm field. Confirm field, focus and residual distortion on the actual sample; this is not calibrated measurement accuracy.
$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
| Lighting | 365 nm UV excitation |
|---|---|
| Source light | Different 74 mm-family UV ring version |
| Current proposal | LS-RNG-0884 |
| Camera and lens | Source versions not identified; current proposed parts below |
| 3D spacing | Illustrative, to be confirmed on the sample |
| Derived proposed field | 84.456 × 70.656 mm = sensor dimensions / 0.1x; source field not supplied |
| Mounting (proposed) | LS-MNT-0097; 600 mm column, 600 × 450 mm base, glass tray and two light 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 illustrated ring position keeps the drawn viewing envelope inside its central aperture; verify vignetting and illumination on the actual sample. 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.