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DCM Sistemes BKL2515B machine vision lighting
DCM SistemesBacklights
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  • Recommended by AIS Vision

DCM Sistemes BKL2515B Area Backlight

BKL2515B

The BKL2515B is a large-format posterior diffuse LED backlight with a 150×250 mm illuminated area, housed in a 257×169×22 mm enclosure weighing 1015 g. It supports continuous, strobe, and iBlueDrive operating modes and is available in six wavelength options: 470 nm (blue), 525 nm (green), 630 nm (red), 850 nm (IR), RGB, and white. In continuous mode at 24 VDC, power consumption ranges from 13 W (470 nm) to 24 W (630 nm). The standard IP rating is IP40, with an optional IP65 upgrade; connection is via a 2-pole chassis connector for continuous/strobe types and a 3-pole aerial inline connector for iBlueDrive variants.

Brand
DCM Sistemes
Lighting type
Backlight (area, diffuse posterior)
Color / wavelength
White (W00); also 470 nm Blue, 525 nm Green, 630 nm Red, 850 nm IR, RGB
Available wavelengths
470 nm (Blue), 525 nm (Green), 630 nm (Red), 850 nm (IR), RGB, White (W00)
Mode
Continuous (C), Strobe (S), iBlueDrive (i)
Illuminated area
150×250 mm
Dimensions
169×257×22 mm (W×H×D)
Weight
1015 g
IP rating
IP40 standard; IP65 optional (/65A modifier)
Supply voltage
24 VDC ±3% (C/S), 24 VDC ±8% (iBlueDrive)
Power consumption
21 W (white, continuous); 13 W (470 nm), 19 W (525 nm), 24 W (630 nm), 17 W (850 nm)
Connection
2P chassis connector (continuous/strobe, VCB cable); 3P aerial inline 150 mm (iBlueDrive, VCC cable)
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Technical overview

The BKL2515B is a large-format diffuse area backlight with a 150×250 mm illuminated surface housed in a shallow 169×257×22 mm enclosure weighing 1015 g. Its posterior diffuse construction places the LED array behind a homogenising diffuser panel, so the light that reaches the camera is spatially uniform across the entire active area. This geometry is what makes area backlights the preferred choice for silhouette-based dimensional measurement and edge detection: the part under inspection appears as a solid dark shape against a bright, even field, making edge transitions clean and repeatable regardless of surface finish or reflectivity. The 150×250 mm format accommodates medium-to-large parts — connector strips, PCBs, pharmaceutical blister packs, stamped metal profiles, or food portions — without the stitching or repositioning required by smaller backlights.

Six wavelength variants are offered — 470 nm blue, 525 nm green, 630 nm red, 850 nm near-IR, RGB, and white (W00) — allowing the specifier to match illumination to camera spectral sensitivity and to the optical filter strategy. The white and visible-spectrum variants pair naturally with colour cameras and standard monochrome sensors. The 850 nm IR variant is intended for monochrome cameras with good near-IR response, particularly where ambient visible light must be rejected or where parts have wavelength-dependent translucency. RGB variants support sequential-colour or colour-ratio imaging. Continuous-mode power consumption varies by wavelength: 13 W (470 nm blue), 19 W (525 nm green), 24 W (630 nm red), 17 W (850 nm IR), and 21 W (white), reflecting differences in LED wall-plug efficiency across the spectrum. All variants operate from a 24 VDC supply — ±3 % tolerance for continuous and strobe modes, ±8 % for iBlueDrive mode — which is standard in industrial control cabinets and simplifies integration.

Three operating modes give integrators flexibility over exposure strategy. Continuous mode requires no external controller; power is supplied directly via the 2-pole chassis connector and VCB cable, making it straightforward to commission and appropriate for slow-cycle or always-on applications. Strobe mode, also using the 2-pole connector and VCB cable, requires a VST strobe controller: the controller gates the LED array on and off in synchrony with camera exposure, reducing average power dissipation and heat build-up while enabling brief high-intensity pulses that freeze motion blur on fast-moving parts. iBlueDrive mode uses DCM Sistemes' proprietary iBlueDrive protocol, connected via a 3-pole aerial inline connector and VCC cable to an iBlueDrive controller; this mode allows significantly higher peak brightness than continuous operation, which benefits high-speed inspection lines where shutter times must be very short. The standard IP40 enclosure is suited to clean indoor environments; an optional IP65-rated variant (suffix /65A) seals the unit against dust and low-pressure water jets, extending deployment to food processing, wash-down zones, and dusty production floors.

Best for

  • Dimensional measurement of medium-to-large flat or profiled parts — such as stamped metal components, injection-moulded profiles, or connector housings — where the 150×250 mm active area provides a uniform bright field across the full part extent and clean, high-contrast edges for sub-pixel gauging algorithms.
  • Blister-pack and packaging integrity inspection in pharmaceutical and food lines, where the backlight reveals fill levels, tablet absence, or seal defects as silhouettes without being confused by label graphics or surface reflections.
  • PCB and electronics sub-assembly outline verification, where the large illuminated area covers full board extents and the choice of wavelength (blue, green, or white) can be matched to camera type and filter strategy for maximum contrast.
  • High-speed conveyor inspection using strobe or iBlueDrive mode, where iBlueDrive provides the short, intense pulses needed to freeze motion at elevated line speeds while maintaining sufficient exposure energy for the camera sensor.
  • Wash-down or dusty production environments — food processing, bulk ingredient handling — when ordered with the optional IP65 upgrade (suffix /65A), which seals the unit against ingress that would degrade illumination uniformity or cause early LED failure.

Selection notes

  • Wavelength selection is driven by camera type and filter strategy: pair the 850 nm IR variant with monochrome cameras and an IR-pass filter to suppress fluorescent ambient light; use the 470 nm blue variant with a blue-pass filter for monochrome sensors when rejecting red or amber ambient sources; choose white or RGB for colour cameras or when a single unit must serve multiple inspection tasks.
  • Operating mode determines the required controller and cabling. Continuous mode needs only a 24 VDC supply via the 2-pole chassis connector and VCB cable — the lowest integration cost. Strobe mode adds a VST strobe controller in the signal chain, using the same 2-pole connector and VCB cable. iBlueDrive mode requires the dedicated iBlueDrive controller and the 3-pole aerial inline connector with VCC cable; budget for this hardware and verify controller availability at time of BOM sign-off.
  • The standard IP40 rating is sufficient for enclosed, climate-controlled machine-vision cells. If the installation is in a food processing area, near wash-down stations, or on an open production floor with coolant mist, specify the /65A option at order time — retrofitting IP65 sealing after delivery is not possible.
  • At 1015 g and 22 mm depth, the BKL2515B is compact enough to fit behind a conveyor belt or inside a compact inspection cell, but verify the mounting structure can support the weight and that the 169×257 mm footprint clears any mechanical guards or part-handling fixtures above the belt.
  • Power supply sizing: the red (630 nm) variant draws 24 W continuous — the highest of any single-colour option. Ensure the 24 VDC rail has at least 1.5 A headroom per unit; where multiple backlights share a supply, sum individual worst-case loads and add a 20 % derating margin.

Specifications: General
BrandDCM Sistemes
Lighting typeBacklight (area, diffuse posterior)

Specifications: Interface
Connection2P chassis connector (continuous/strobe, VCB cable); 3P aerial inline 150 mm (iBlueDrive, VCC cable)

Specifications: Optical
Color / wavelengthWhite (W00); also 470 nm Blue, 525 nm Green, 630 nm Red, 850 nm IR, RGB
Available wavelengths470 nm (Blue), 525 nm (Green), 630 nm (Red), 850 nm (IR), RGB, White (W00)
DiffuserYes (diffuse posterior illumination)
Emission angleDiffuse

Specifications: Electrical
ModeContinuous (C), Strobe (S), iBlueDrive (i)
Supply voltage24 VDC ±3% (C/S), 24 VDC ±8% (iBlueDrive)
Power consumption21 W (white, continuous); 13 W (470 nm), 19 W (525 nm), 24 W (630 nm), 17 W (850 nm)
Controller requiredNo (continuous); VST strobe controller for strobe mode; iBlueDrive controller for i-type

Specifications: Environment
IP ratingIP40 standard; IP65 optional (/65A modifier)

Specifications: Geometry
Illuminated area150×250 mm

Specifications: Mechanical
Dimensions169×257×22 mm (W×H×D)
Weight1015 g

Frequently asked questions

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