Custom LED sources for inspection
VST develops custom LED sources for machine vision lighting when standard housings, illumination angles or cable layouts limit installation. As a machine vision lighting supplier, we help determine what can be built and sampled. Use your camera images to check whether the proposed source makes the target feature stand out from its background.
Start with the inspection task, a part photo or your camera setup. We can discuss details you have not decided.
Lighting for machine vision must separate the target feature in the captured image. Your camera, lens and part surface guide our assessment of source placement as a machine vision lighting OEM supplier.
Purchasing risk: A sample that works during a trial may fail when daylight or overhead lighting changes.
Confirm: Ambient-light variation at the inspection station
VST solution direction: Check the source separately from surrounding light during the application trial.
Purchasing risk: Strobe operation may require controller development beyond the LED assembly.
Confirm: Trigger voltage, pulse duration and camera exposure
VST solution direction: Establish the timing interface before choosing how to control the light.
Purchasing risk: Changing the LED wavelength or optic may alter contrast despite similar visible brightness.
VST solution direction: List contrast-sensitive components in the production specification and record how changes will be handled.
LED machine vision lighting needs to fit the equipment and work with the camera. VST can develop the structure and wiring. We must assess specialized spectrum, pulse and controller requirements before committing to supply them.
Discuss bar position, emitting area and shielding within the available optical path. A larger luminous surface may cover more of the part but also create more reflections, so coverage alone should not decide the source.
Buyer input: Camera field of view and permissible source locations
LED color and diffusion change how the part appears to the camera. In our work as a machine vision lighting manufacturer, these remain sample choices. Camera trials establish which choices work; visible brightness cannot do that.
Buyer input: Relevant material colors and camera spectral response
Continuous and triggered operation place different demands on the electrical circuit and cooling. The driver, controller and LED assembly need compatible operating limits. A standard lighting connection does not establish synchronization with the camera.
Buyer input: Existing controller output and required operating mode
Adapt the housing, fixing points and cable exit to the inspection fixture. A new shape may need a dedicated enclosure or board. Leave room for tools so light alignment can be adjusted without moving the camera.
Buyer input: Mounting datum and access envelope around the fixture
Choose the angle from the feature and the material’s reflections. Machine vision lights may need adjustment during trials. These are starting approaches to test, not VST configurations with proven application performance.
| Decision factor | High-angle bar | Grazing-angle bar | Buyer guidance |
|---|---|---|---|
| Primary image emphasis | General surface and printed information | Edges, scratches and relief features | Choose the angle that reveals the defect or feature you need to classify. |
| Reflection sensitivity | Specular reflection may enter the lens | Surface texture can become more prominent | Try finishes that represent the variation in your production parts. |
| Mechanical access | Requires clearance above the inspection area | Needs space close to the part plane | Check how parts are loaded before mounting a light close to them. |
| Main trade-off | Broad usability with possible glare | Selective contrast with stronger shadows | Avoid a geometry that hides other required features. |
VST’s structural, electrical and lighting engineers assess whether the proposed source can be built. For machine vision lighting systems, agree who handles the camera algorithms and specialized controls so the sample has a clear purpose and interface.
Customer input: Required detection outcome and responsible system parties
VST work: Our team identifies which source parts we develop and which camera, controller and software functions sit outside module supply.
Stage output: An agreed module scope with the interfaces it depends on.
VST work: Electrical and structural engineers select a buildable assembly, mounting method and protected cable exit for the sample.
Stage output: A proposed sample with its mounting and electrical connections identified.
Customer input: Representative acceptable and unacceptable production parts
VST work: Use your imaging setup to compare representative parts while VST assesses changes to the agreed light module.
Stage output: Trial findings showing which source changes need another camera test.
VST work: VST records the chosen construction and coordinates controls for the optical and electrical components that affect repeatability.
Stage output: A module specification documenting how contrast-sensitive components are controlled.
Test the proposed machine vision lighting module at its agreed operating point. VST supports sphere measurements and thermal checks. Contrast and specialized synchronization tests need the actual imaging setup and a method agreed for your project.
Purpose: Check that the target feature is distinguishable throughout the required inspection area.
Method: Capture representative parts using the intended camera, lens and source position.
Acceptance criteria: The required feature stays visible across the field and representative surface variations.
Evidence: Application evidence comes from the camera trial agreed for the project.
Purpose: Measure source output and color at the chosen operating condition.
Method: Use an integrating sphere with a supported sample and controlled electrical input.
Acceptance criteria: Measured source characteristics meet the agreed module specification.
Evidence: A model-specific record requires measurements of the selected sample.
Purpose: Check heat that could change output or affect nearby camera equipment.
Method: Run the sample on its intended mount and measure the specified contact points.
Acceptance criteria: Acceptable housing temperature and stable operation at the specified duty.
Evidence: Thermal findings apply to the tested mount and operating mode.
Purpose: Identify supply or control mismatches before treating a fault as an optical problem.
Method: Check polarity, current and switching behavior using the proposed supply and interface.
Acceptance criteria: The electrical behavior meets the chosen driver and interface specification.
Evidence: Specialized trigger measurements need a suitable project test setup.
Purpose: Keep the source secure without blocking part loading or camera adjustment.
Method: Fit the light to a representative bracket and move nearby equipment through its required travel.
Acceptance criteria: Accessible fasteners, stable mounting and unobstructed cable routing.
Evidence: Fit findings apply to the equipment space used for the assessment.
Identifies the proposed source's optical parts, mounting and electrical interface.
Agree camera-test responsibility, image criteria and any specialized timing measurements for the project.
For a single model, the typical starting MOQ is 500 units for light customization and 1,000 units for high customization. Light customization usually adapts a suitable existing platform. New optics, a board or a triggered interface may need deeper development. The quotation states the final quantity for the chosen inspection source.
VST develops source samples with processing charges. New production resources may also need tooling or mold charges. Eligible sample costs can be returned or credited against a later production order under the agreed project terms. Specify external camera evaluation and controller development costs separately from the module sample.
Light-customization samples normally take 15–25 working days, with bulk production at 20–30. For high customization, samples normally take 30–50 working days and bulk production 25–35. Timing starts after the required technical information and applicable fees, deposits and order conditions are complete. Stable-demand orders may reserve key materials to shorten later schedules. These are typical ranges, not guaranteed delivery dates.
New optics, an enclosure, a PCB or an alignment fixture may need a tooling or NRE charge. Eligible tooling or mold costs can be credited against payment for a later production order. Record the qualifying order, amount and credit method in the commercial terms, and identify which resources belong to light-source development.
As a machine vision lighting OEM supplier, VST coordinates established suppliers and repeat-production controls for the selected module. We identify LED, optic and driver choices that affect image consistency. Stable forecasts allow agreed key materials to be prepared or reserved, without guaranteeing finished stock. Assess changes that affect contrast before repeating production.
Customize packing to protect the housing, lens and lead. Available identification includes labels, carton marks and barcodes, with brand artwork, instruction sheets and user manuals. Distinguish optical and interface variants that look alike. VST supports shipment coordination, while the agreed order determines packing quantities and freight arrangements.
These questions address what a light-source quotation includes and how the source fits the wider inspection system. Cameras, controllers and software need their own supply responsibilities. If your machine vision lighting task still has an unresolved inspection condition, discuss it with VST before selecting a source. The team can identify the engineering question that needs an answer and assess whether specialized imaging requirements can be met.
The quotation lists the included items. Supplying a machine vision light source does not establish that the camera, controls and software are part of a complete inspection package.
| Item | Scope decision |
|---|---|
| LED assembly | Specify housing, optics and wiring |
| Camera and software | Assign system responsibility separately |
| Specialized controller | Assess interface and supply feasibility |
One source may not reveal defects that need different illumination. In machine vision lighting, an angle that reveals scratches may hide print or cast shadows. Decide which defect types need separate images or lighting states before committing to a source. This is a requirement of the inspection task.
No. Sources that look equally bright can produce different camera responses. Spectrum, diffusion and exposure can all change contrast. When replacing machine vision lighting, compare captured images under equivalent conditions. Lumens or color temperature alone do not show that the replacement will produce the same result.
Possibly, if its output matches the selected LED assembly. Connector shape and nominal voltage do not establish pulse capability. Share the controller interface specification for assessment. As your machine vision lighting supplier, VST must state the supported operating limits in the quotation before you use that pairing.
