Choose illumination from the material, defect and required contrast
The application collection contains 40 cases across lithium batteries, PCBs, capacitors and resistors, metal parts and 3C products. Each case associates one observed contrast mechanism with a documented light model.
- Groups
- 5
- Battery, PCB, components, metal, 3C
- Cases
- 40
- Workpiece → result
- Optics
- Front / back / UV / IR
- Task dependent
- Selection
- Contrast first
- Then size and integration
Lithium batteries
Poles, film, package damage, glue, sides and protection plates.
PCB assemblies
Surface, glue, components, QR codes, welding and leakage.
Electronic components
Pin position, polarity, characters, scratches and surface marks.
Metal products
Position, scratches, threads, contours, pits and dents.
3C products
Phone-shell gaps, glue, rubber rings, holes, characters, charging coils and stains.
Representative workpiece and inspection-result pairs
Each pair presents the workpiece, applied light model, contrast mechanism and resulting inspection image as one readable engineering case.
Lithium battery pole ear
Backlight from below makes the opaque battery body dark and the pole ear silhouette distinct.
Battery film
Side bar light separates the strongly reflective battery surface from the film.
Battery packaging damage
Low-angle ring light darkens the package while damaged unwrapped regions remain bright.
Battery glue
UV ring illumination and filtering raise surface-glue contrast.
PCB inspection
Coaxial line illumination balances reflective PCB areas for surface inspection.
PCB glue
UV illumination makes glue fluoresce against the PCB.
Capacitor pin positioning
High-angle ring light reveals pin geometry against a dark background.
Resistance direction
Square shadowless backlight outlines the part and exposes polarity direction.
Metal sheet positioning
Coaxial illumination suppresses directional variation and preserves the sheet outline.
Metal box surface defects
Opposed bar lights reveal dents and scratches on a reflective enclosure.
Screw threads
Collimated backlight creates a clean thread silhouette.
Small metal defects
Coaxial light separates pits and dents from background reflection.
Transfer the optical principle, not an unverified model
Case models are evidence of one tested arrangement. Recalculate size, colour, working distance and power for the new target.
- 1
Classify material response
Record opacity, reflectivity, colour, fluorescence and surface relief.
- 2
Define the defect signal
Decide whether the defect should become bright, dark or fluorescent.
- 3
Choose the light family
Use backlight, coaxial, bar, ring, shadowless or UV according to the required mechanism.
- 4
Validate one exact product
Test field, colour, distance, power and exposure with the real sample.
All 40 documented case-to-model references
| Application group | Inspection task | Light model | Optical principle |
|---|---|---|---|
| Lithium battery | Pole-ear inspection | LXV-2FT100100-W | Backlight from below makes the opaque body dark and the pole-ear silhouette distinct. |
| Lithium battery | Film inspection | LXV-2BRS15030-W | Side bar illumination separates the reflective battery surface from the film. |
| Lithium battery | Surface packaging defects | LXV-RN17315-B | Low-angle ring illumination darkens the package while exposed damage remains bright. |
| Lithium battery | Glue inspection | LXV-RN15060-UV385 | UV ring illumination and filtering raise glue fluorescence against the surface. |
| Lithium battery | Glue-position inspection | LXV-COX40-B | Coaxial illumination separates the bottom glue from the surrounding surface. |
| Lithium battery | PCB battery-glue inspection | LXV-RN9030-UV385 | UV low-angle illumination makes glue fluoresce while limiting metal reflection. |
| Lithium battery | Side-defect inspection | LXV-2BR7530-W | Opposed bar lights reveal the side surface and small holes at low working distance. |
| Lithium battery | Bottom protection-plate inspection | LXV-RN5060-B | High-angle ring illumination brightens reflective metal while damaged regions remain dark. |
| PCB | Surface inspection | LXV-2COXL180-B | Coaxial line illumination balances the reflective PCB surface and non-reflective tracks. |
| PCB | LED-board glue-point positioning | LXV-RN17315-B | Low-angle ring illumination creates a dark glue position against the reflective surround. |
| PCB | Glue inspection | LXV-RN15060-UV385 | UV illumination produces a bright glue response against a dark PCB background. |
| PCB | Electronic-component inspection | LXV-2FTR400300-W | Uniform ring-backlight illumination separates metal areas and background by colour. |
| PCB | QR-code inspection | LXV-2BRS30030-R | Red side bar illumination darkens the background and preserves the QR-code response. |
| PCB | Mark-point positioning | LXV-FTR324284-B | Large-area backlighting makes the mark points clear and high contrast. |
| PCB | Line-welding inspection | LXV-2BR9016-R | Directional bar illumination separates luminous and non-reflective welding regions. |
| PCB | Chip copper-leakage inspection | LXV-COX50-W | Uniform coaxial illumination highlights exposed copper colour differences. |
| Capacitor / resistor | Capacitor-pin positioning | LXV-RN7090-B | High-angle ring illumination reveals reflective pin ends against the dark background. |
| Capacitor / resistor | Resistance-direction discrimination | LXV-FPQ120120-W | Square shadowless backlighting outlines the part and distinguishes its two connection ends. |
| Capacitor / resistor | Capacitor-pin inspection | LXV-RN9070-B | High-angle ring illumination makes reflective pins bright and the background dark. |
| Capacitor / resistor | Component character inspection | LXV-RN7430-W | Low-angle ring illumination highlights concave characters on a rough surface. |
| Capacitor / resistor | Tantalum-capacitor colour discrimination | LXV-HPR100-W | A shadowless ring and controlled colour rendering separate three component regions. |
| Capacitor / resistor | Capacitance surface-character inspection | LXV-RN9070-B | Blue illumination and colour complementarity render the body dark and characters bright. |
| Capacitor / resistor | Ceramic-resistance scratch inspection | LXV-RN12015-W | Low-angle ring illumination reveals scratches on the rough ceramic surface. |
| Capacitor / resistor | Resistance-IC surface-character inspection | LXV-RN4265-B | High-angle illumination reaches concave characters and creates a clear polarity contrast. |
| Metal | Sheet-positioning inspection | LXV-3CON50-W | Narrow-angle coaxial illumination brightens the metal sheet while blackening its edge. |
| Metal | Box surface-defect inspection | LXV-2BR15030-B | Opposed bar lights reveal dents and scratches on the reflective box. |
| Metal | Cylinder surface-defect inspection | LXV-2COXL230-W | Coaxial line illumination works with rotation to reveal surface defects. |
| Metal | Cylinder-head inspection | LXV-COX40-W | Coaxial illumination separates smooth, rough and recessed regions by reflected level. |
| Metal | Screw-hole positioning | LXV-RNH5060-W | 60-degree ring illumination reveals the screw edge at low grey level. |
| Metal | Part-under-button inspection | LXV-COX60-W | Coaxial vertical illumination reveals dark defects against the bright metal surface. |
| Metal | Screw-thread inspection | LXV-2PFT7070-W | Collimated backlighting sharpens thread edges for profile measurement. |
| Metal | Small-component defect inspection | LXV-COX40-W | Coaxial illumination makes silver-plating defects bright against the background. |
| 3C product | Mobile-phone shell-gap inspection | LXV-2LIN100-W | Concentrated side illumination brightens the outer shell around the gap. |
| 3C product | Mobile-phone shell rubber-ring inspection | LXV-RN12030-IR850 + 2DM116-IR | Dome and low-angle infrared illumination separate the uneven black rubber ring. |
| 3C product | Mobile-phone shell glue inspection | LXV-RN9030-UV385 | UV illumination makes the shell-edge glue path fluoresce. |
| 3C product | Mobile-phone shell hole-location inspection | LXV-RN12030-IR850 + 2DM116-IR | Two bar lights brighten the body while hole features remain dark. |
| 3C product | Mobile-phone cover-screen character inspection | LXV-2BR17530-W | Uniform bar illumination highlights characters on the reflective rear cover. |
| 3C product | Mobile-phone wireless-charging inspection | LXV-RN17315-B | Low-angle ring illumination creates two sharp charging-coil contours. |
| 3C product | Phone-case edge-positioning inspection | LXV-LFR100-R | Flat shadowless illumination produces a uniform bright side shell and sharp edge. |
| 3C product | Cellphone-logo stain inspection | LXV-COX40-B | Uniform coaxial illumination turns the smooth logo field bright and stains dark. |
Rebuild the case around the new camera and machine geometry
This route is an application reference, not one mechanical product. Dimensions belong to the selected light model.
- 01
Open the referenced product family and choose an emitting area that covers the complete target.
- 02
Reproduce the light direction and working-distance relationship used to create contrast.
- 03
Match camera, lens, filter, wavelength and exposure to the new sample.
- 04
Release mounting, controller load and cable clearance from the selected product drawing.
