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DCM Sistemes BKL2005A machine vision lighting
DCM SistemesBacklights
  • Rosepetal compatible
  • Recommended by AIS Vision

DCM Sistemes BKL2005A Area Backlight (50x200 mm)

BKL2005A

The BKL2005A is a posterior diffuse (bright-field) backlight that produces a uniform 50 x 200 mm illuminated surface to emphasize light-dark contrast for precise dimensional measurement and profile/edge inspection. It runs on 24 VDC through a 2-pole male chassis connector (PIN 1 = +24V, PIN 2 = 0V; power cable not included), with the white continuous (W00C) version drawing up to 8.4 W. The unit is built in an anodized aluminium housing measuring 66 x 204 x 22 mm, weighs 370 g, is rated IP50 and operates from 0 to 40 C. It is available in multiple emissions (UV 365/400 nm, blue 470 nm, green 525 nm, red 630 nm, IR 880/940 nm and white) in continuous (Type C) and strobe-overdrive (Type S) variants.

Brand
DCM Sistemes
Lighting type
Backlight (posterior diffuse / bright-field area light)
Color / wavelength
White (W00) - also available: UV 365nm, UV 400nm, blue 470nm, green 525nm, red 630nm, IR 880nm, IR+ 940nm
Available wavelengths
White, UV- (365 nm), UV (400 nm), Blue (470 nm), Green (525 nm), Red (630 nm), IR (880 nm), IR+ (940 nm)
Mode
Continuous (Type C); strobe/overdrive (Type S) variant available
Diffuser
Yes - ultra-diffuse emitting surface
Illuminated area
50 x 200 mm active surface
IP rating
IP50
Controller required
No (Type C continuous runs directly on 24 VDC; Type S strobe variant needs a strobe controller)
Emission angle
Diffuse (uniform emitting surface)
Power consumption
8.4 W max (white W00C, continuous); color-dependent: 630C 5 W, 525/880/940C 7.6 W, 470/W00C 8.4 W
Supply voltage
24 VDC
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Technical overview

The BKL2005A is a posterior diffuse (bright-field) area backlight: it sits behind the part and floods a 50 x 200 mm ultra-diffuse emitting surface so the camera sees the object as a dark silhouette against a uniformly bright field. That transmitted-light geometry is what makes backlights the gold standard for dimensional measurement and profile/edge work, because the part outline is defined by sharp light-to-dark transitions that subpixel edge algorithms can locate repeatably, independent of surface color, texture or print. The elongated 50 x 200 mm format is the operative detail here: it suits long, narrow or linearly-fed parts, or multiple small parts staged across the strip, rather than a square part footprint.

Electrically the unit is deliberately simple. The white W00C continuous version runs directly on 24 VDC and draws up to 8.4 W, with no controller required, so it can be powered from the same 24 V supply that feeds the PLC or sensors. Consumption is wavelength-dependent (red 630C ~5 W; green 525/IR 880/IR+ 940C ~7.6 W; blue 470 and white W00C ~8.4 W), which matters only when sizing the supply rail. Power arrives through a 2-pole male chassis connector (PIN 1 = +24V, PIN 2 = 0V), and the power cable is not included, so the mating cable is a separate line item to plan for. As a Type C continuous light it stays on; if you instead need the strobe/overdrive (Type S) variant for short, bright pulses synchronized to a fast shutter, that version requires a dedicated strobe controller.

Mechanically it is an anodized aluminium housing of 66 x 204 x 22 mm weighing 370 g, which is shallow enough to tuck under a conveyor or into a measurement nest. It is rated IP50, meaning dust-protected but not washdown-rated, and is specified for 0 to 40 C operation (storage 0 to 60 C) - adequate for typical enclosed machine cells but not for wet or high-temperature stations. The light is offered across a wide emission range (UV 365/400 nm, blue 470 nm, green 525 nm, red 630 nm, IR 880/940 nm and white), letting you trade off edge sharpness and material interaction: shorter wavelengths and monochromatic emission generally give crisper edges and let you pair an optical bandpass filter to reject ambient light, while IR can pass through some materials and white keeps options open. The default cataloged unit is white continuous.

Best for

  • Dimensional measurement and gauging of long or narrow parts that fit the 50 x 200 mm field, where the silhouette edge defines the measured dimension
  • Profile and edge inspection where a uniform bright field maximizes light-dark contrast around the part outline
  • Presence/absence and completeness checks on packaging fed linearly past the strip-shaped emitting surface
  • Silhouette-based defect detection on small components staged across the elongated active surface
  • Industrial OCR/OCV and surface inspection tasks that benefit from a high-contrast transmitted-light backdrop

Selection notes

  • Match the part to the 50 x 200 mm active area: backlight measurement needs the part outline to sit fully and with margin inside the lit surface, so this format favors elongated or linearly-arranged parts over square footprints.
  • Choose the wavelength deliberately - a monochromatic option (e.g. red 630 nm or blue 470 nm) gives sharper, more consistent edges and enables a matched bandpass filter on the lens to suppress ambient light, whereas the default white is the general-purpose choice.
  • Confirm continuous vs strobe up front: the Type C continuous unit needs no controller and runs straight off 24 VDC, but if your application requires Type S strobe/overdrive for frozen high-speed capture you must budget a strobe controller and synchronize it to the camera trigger.
  • Plan the power cabling - the 2-pole male chassis connector (PIN 1 +24V, PIN 2 0V) ships without a power cable, so order the mating connector/cable separately and size the 24 V supply for the chosen color (up to 8.4 W).
  • Verify the environment against IP50 and 0 to 40 C: this is a dust-protected, enclosed-cell light, not a washdown or high-temperature unit, so add protection if the station sees liquids, splash or elevated ambient temperatures.

Specifications: General
BrandDCM Sistemes
Lighting typeBacklight (posterior diffuse / bright-field area light)

Specifications: Interface
Connection2-pole male chassis connector (PIN 1 = +24V, PIN 2 = 0V); power cable not included

Specifications: Optical
Color / wavelengthWhite (W00) - also available: UV 365nm, UV 400nm, blue 470nm, green 525nm, red 630nm, IR 880nm, IR+ 940nm
Available wavelengthsWhite, UV- (365 nm), UV (400 nm), Blue (470 nm), Green (525 nm), Red (630 nm), IR (880 nm), IR+ (940 nm)
DiffuserYes - ultra-diffuse emitting surface
Emission angleDiffuse (uniform emitting surface)

Specifications: Electrical
ModeContinuous (Type C); strobe/overdrive (Type S) variant available
Controller requiredNo (Type C continuous runs directly on 24 VDC; Type S strobe variant needs a strobe controller)
Power consumption8.4 W max (white W00C, continuous); color-dependent: 630C 5 W, 525/880/940C 7.6 W, 470/W00C 8.4 W
Supply voltage24 VDC

Specifications: Environment
IP ratingIP50
Operating temperature0 to 40 C (storage 0 to 60 C)

Specifications: Geometry
Illuminated area50 x 200 mm active surface

Specifications: Mechanical
Housing materialAnodized aluminium
Dimensions66 x 204 x 22 mm (W x L x H)
Weight370 g

Frequently asked questions

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