| Availability: | |
|---|---|
| Quantity: | |
The LEDs inside the backlight are scientifically arranged to achieve even light distribution across the entire emitting area. This uniform illumination helps eliminate dark zones and brightness inconsistency, allowing the camera to capture sharper edges and more stable object silhouettes. For applications such as contour measurement and precision positioning, high uniformity is essential for achieving repeatable inspection results.
This backlight is designed with energy efficiency in mind. It delivers strong and stable illumination while maintaining relatively low power consumption, helping customers reduce system energy usage and improve the efficiency of long-term operation. This is particularly valuable in automated production lines where lighting systems run continuously for extended hours.
Backlighting is one of the most effective illumination methods for creating high-contrast images of parts and materials. By placing the light behind the target object, the system can clearly distinguish the outline, holes, slots, and external shape of the object from the background. This makes the product highly suitable for dimension measurement, presence detection, edge positioning, and transparent object inspection.
Different inspection projects require different light sizes, working distances, and camera openings. KCS supports customization of the emitting area, external dimensions, center opening, light thickness, installation holes, cable position, connector type, and housing structure. This allows the backlight to be integrated into different automation systems with greater flexibility.
To meet the imaging needs of different materials and inspection tasks, the product is available in multiple light colors and wavelengths, including white, red, blue, green, and infrared. Different wavelengths can improve contrast on specific surfaces, materials, or transparent objects, helping users achieve more accurate detection results.
Manufactured with high-quality LEDs, durable structural materials, and strict production standards, the backlight is designed for continuous industrial operation. It maintains stable brightness, reliable optical performance, and long working life, helping reduce maintenance frequency and system downtime.
The backlight can be matched with analog controllers, digital display controllers, or strobe controllers according to the inspection mode and application requirements. This enables flexible brightness adjustment and supports different machine vision environments, including high-speed production lines.
A machine vision backlight is installed behind the object being inspected. When the light passes around or through the object, the camera sees the part as a dark shape against a bright background. This creates a high-contrast image that makes it easier for vision software to analyze the object’s contour, dimensions, edge quality, openings, and transparency characteristics.
Backlighting is one of the best illumination methods for applications where:
the shape of the object must be measured accurately
the outline of the object must be clearly separated from the background
transparent or translucent materials need to be detected
small slots, holes, burrs, or missing features need to be identified
liquid level or fill height needs to be inspected
Because the inspection result depends strongly on image contrast and edge clarity, the quality of the backlight has a direct impact on the performance of the entire vision system. A stable and uniform backlight helps reduce false detection, improve repeatability, and support faster inspection speeds.
KCS Machine Vision LED Backlight is designed for industrial vision systems that require high contrast, clear object outlines, and reliable imaging performance. It is widely used in the following applications:
Used for detecting cracks, scratches, holes, chips, and edge defects on transparent or semi-transparent materials such as glass, plastic sheets, films, and thin precision parts.
Suitable for inspecting PCB outlines, connectors, electronic parts, and structural features where high-contrast imaging is required for automated vision inspection.
Ideal for glass, plastic film, acrylic, medical packaging, and other transparent materials that require enhanced edge visibility and defect detection.
Used for inspecting flat displays, optical sheets, thin panels, and related components where stable and uniform backlighting improves image clarity and inspection reliability.
Provides sharp silhouettes for accurate measurement of object profile, width, diameter, openings, gaps, and external dimensions.
Applicable to automated production lines for sorting, counting, positioning, and presence verification based on object outline, size, and transparency differences.
Wavelength/Color Temperature | Red (R) | 620-630nm | Green(G) | 520-530nm |
Blue (B) | 460-470nm | White (W) | 6500±500K | |
Infrared (IR) | 850/940nm | Ultraviolet (UV) | 365-405nm | |
Save environment | humidity | -20-60°C | humidity | 20-80% (non condensing) |
Usage environment | 0-40°C | |||
Select accessories | Light source extension cable, diffuser plate | |||
Optional controller | KCS-CKKAC2 series, KCS-CKKDC series, KCS-CKKWDC series, KCS-CKSC series | |||
Service life/warranty | When the ambienttemperature is 25°C. the brighiness of the lightsource wil decrease by less than 30% atter 10000 hours ofuse (excluding ultraviolet | |||
When the ambienttemperature is 25°C. the 100% brighiness of the ultraviolet lightsource willdecay by less than 30% after 1000 hours of use | ||||
Wthinone year of shipment,ifthere is a malfunction due to non -human factors, free repairorreplacement services willbe provided | ||||
| NO. | Model | Power/W | Luminous surface size mm | Recommended extension cable | Recommended controller | |
|---|---|---|---|---|---|---|
| R | G/B/W | |||||
| 1 | KCS-CKGP-40-50 | 2.8 | 3.2 | 40*50 | SE、FE系列 | KCS-CKKAC2系列 KCS-CKKDC系列 KCS-CKKWDC系列 KCS-CKSC系列 |
| 2 | KCS-CKGP-90-100 | 5.6 | 7.2 | 90*100 | SE、FE系列 | |
| 3 | KCS-CKGP-140-100 | 8.4 | 10.6 | 140*100 | SE、FE系列 | |
| 4 | KCS-CKGP-140-150 | 8.4 | 10.6 | 140*150 | SE、FE系列 | |
| 5 | KCS-CKGP-190-150 | 11.2 | 14 | 190*150 | SE、FE系列 | |
| 6 | KCS-CKGP-190-200 | 11.2 | 14 | 190*200 | SE、FE系列 | |
| 7 | KCS-CKGP-240-200 | 14 | 17 | 240*200 | SE、FE系列 | |
| 8 | KCS-CKGP-240-250 | 14 | 17 | 240*250 | SE、FE系列 | |
| 9 | KCS-CKGP-290-200 | 16.8 | 20.8 | 290*200 | SE、FE系列 | |
| 10 | KCS-CKGP-290-250 | 16.8 | 20.8 | 290*250 | SE、FE系列 | |
| 11 | KCS-CKGP-290-300 | 16.8 | 20.8 | 290*300 | SE、FE系列 | |
| 12 | KCS-CKGP-340-250 | 19.6 | 24 | 340*250 | SE、FE系列 | |
| 13 | KCS-CKGP-390-300 | 22.4 | 27 | 390*300 | SE、FE系列 | |
| 14 | KCS-CKGP-440-350 | 25.2 | 30 | 440*350 | SE、FE系列 | |
| 15 | KCS-CKGP-440-400 | 25.2 | 30 | 440*400 | SE、FE系列 | |
| 16 | KCS-CKGP-590-400 | 33.6 | 48 | 590*400 | SE、FE系列 | |
Model List
This application demonstrates the use of a machine vision LED backlight for precise contour detection of cross-shaped components. The goal is to accurately capture the outer profile and edge details of the part for automated inspection and measurement.
Object Type: Cross-shaped building block
Material: Solid industrial component
Inspection Target: Contour shape and edge accuracy
Due to the curved edges and irregular contours of the object, it is difficult for standard front lighting to clearly capture the true edge profile. The lack of contrast often results in blurred boundaries, making accurate contour detection and measurement unreliable.
KCS machine vision LED backlight is used to provide uniform illumination from behind the object. By generating a high-contrast silhouette, the system is able to clearly separate the object from the background and accurately define its outer contour.
Lighting Model: KCS-CKP-103-106-W
Lighting Type: LED Backlight
Lighting Method: Back illumination
With the use of uniform backlighting, the captured image shows a clear and sharp outline of the object. The edges are well-defined, enabling precise contour extraction and improving detection accuracy.
After image acquisition, machine vision software processes the high-contrast image to accurately identify the contour edges. This allows for reliable shape recognition, dimensional measurement, and defect detection.
Clear object silhouette for accurate contour detection
Enhanced edge definition and contrast
Improved measurement precision
Stable and repeatable inspection results
Suitable for complex shapes and irregular edges
This solution is widely used in:
Precision component contour inspection
Automated dimension measurement
Shape recognition and positioning
Industrial quality control systems
Electronics and mechanical parts inspection
A: The minimum order quantity (MOQ) for our machine vision LED backlights is 1 piece. We support small trial orders so customers can test the lighting performance before placing bulk orders.
A: Yes, we provide full customization services for machine vision LED backlights. You can customize:
emitting area size
outer dimensions
center opening
light color and wavelength
brightness level
cable length and connector type
mounting structure
We can recommend the most suitable backlight solution based on your inspection requirements, camera setup, and application scenario.
A:
Standard products: 3–5 working days
Custom products: typically 7–10 working days
For complex customization or large-volume orders, the lead time may vary. Please contact us for an accurate production schedule.
A: We provide a 1-year warranty for all machine vision LED backlights. During the warranty period, we offer free repair or replacement for quality-related issues under normal operating conditions.
A: Yes, our machine vision lighting products are CE certified, ensuring compliance with international safety and quality standards. Certification documents can be provided upon request.
A: A machine vision LED backlight is used to create high-contrast images by illuminating the object from behind. It is widely used for:
contour inspection
dimension measurement
transparent material detection
hole and slot detection
liquid level inspection
A: When selecting a machine vision backlight, you should consider:
object size
inspection purpose
material type (transparent, reflective, dark)
camera and lens setup
installation space
If you are unsure, our team can recommend a suitable model based on your application.
A: Yes. We support custom center openings for machine vision backlights. This is useful when the camera needs to view through the light or when space is limited in the inspection system.
A: The optimal light color depends on the material and inspection goal:
White light: general-purpose inspection
Red light: improves contrast for metal and dark objects
Blue light: suitable for fine detail detection
Infrared: used for special materials or filtering effects
We can help select the best wavelength for your application.
A: Yes, our LED backlights are compatible with:
analog controllers
digital display controllers
strobe controllers
This allows flexible brightness adjustment and synchronization with high-speed inspection systems.

