Exaktera

LUMIMAX · DARK FIELD

DFL50 Dark Field Ring Light

LMX-DFL50

Low-angle dark field ring light with moderate performance for surface defects, edges and embossing - 50mm inner diameter.

Light colour | wavelength
470 to 625 nm, white
Power-LED
SMD LEDs
Light field size
50
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Overview

About the LMX-DFL50

The DFL50 is the smallest LUMIMAX ring-shaped dark field light, with a 50mm light area diameter. Radial illumination runs almost parallel to the object plane, so a flat surface throws the light away from the camera and only features that deflect the rays appear bright. That regime shows engraving, embossing, stamped numbers, dot-peened and laser-cut codes, edges and cavities in high contrast, including on strongly reflective parts.

Six colours are orderable: blue at 470nm, green at 528nm, red at 625nm, white at 6000K, ultraviolet at 400nm and infrared at 870nm, in continuous and switch or flash operation. Strobe brightness reaches up to 25 times that of the continuous variants.

A representative white flash article gives 7 W/m2 at 0.2m from SMD LEDs, on 0.3A at 24 V DC and 120W at the light area with the external FLC2 controller. Flash times of 10 to 100us, 20 to 220us or 50 to 750us run at 100Hz, 35Hz or 10Hz, full output within 3us, brightness set by potentiometer or analogue input. The housing is 85mm by 26mm and 210g, rated IP40.

DFL50 Dark Field Ring Light

Specifications

Operation
Operating mode (varies by part number)
Continuous and switching mode | Strobe mode
controller (varies by part number)
External illumination controller PLC2 (101.0029.00) available as accessory | External strobe controller series FLC2 (102.0030.xx) available as accessory
Environment
Ingress protection
IP40
Allowed ambient temperature
5 to 45 °C, non-condensing
Risk Group
0
Mechanical
Dimensions (Ø x h in mm)
85 x 26 (Ø = 125 mm with cable incl. bending radius)
Material housing | window
Aluminium, anodised | PMMA
Electrical
Operating voltage
19 to 30 V DC wide-range voltage input *
Maximum current consumption (varies by part number)
0.1 A * | 0.3 A * | 0.5 A *
Maximum electrical power at light field (varies by part number)
109 W * | 120 W* | 2 W* | 217 W* | 4 W * | 98 W *
Electrical connection (varies by part number)
1.5 m cable with M16 6-pin plug for connection to PLC2 controller | 1.5 m cable with M16 8-pin plug for connection to FLC2 controller series
Brightness control via potentiometer
0 % (left stop) to 100 % (right stop) brightness # Note: automatic deactivation at VC > 1 V DC *
Brightness control via analogue VC input
VC = 2 to 10 V DC (0 % to 100 % brightness) # Note: Turn potentiometer to left stop *
TTL-Trigger
High level = 3 to 30 V DC *
SPS-Trigger
High level = 15 to 30 V DC *
Trigger slope
Rising slope *
Switch-on delay
100 % brightness within a maximum of 3 µs
Flash duration 1
10 to 100 µs | 20 to 220 µs |50 to 750 µs *
Flash frequency
100 Hz | 35 Hz | 10 Hz *
TTL switching input
High level = 3 to 30 V DC *
PLC switching input
High level = 15 to 30 V DC *
Switching mode
Switching time follows the switching signal # Connect + ON / OFF and GND ON / OFF *
Continuous mode
Assign + ON / OFF permanently with high signal, e. g. by applying to operating voltage # Connect GND ON / OFF *
Optical
Light field size (Ø in mm)
50
Light colour | wavelength (varies by part number)
Blue | 470 nm | Green | 528 nm | Red | 625 nm | White | 6000 K
Light guidance
Radial, directional
Power-LED
SMD LEDs
Illuminance at 0 mm
continuous 2143–30168 lx · strobe 37154–369558 lx
Illuminance at 50 mm
continuous 594–3275 lx · strobe 10176–68355 lx
Illuminance at 100 mm
continuous 139–454 lx · strobe 1833–9476 lx
Illuminance at 200 mm
continuous 34–105 lx · strobe 498–2200 lx
Irradiance at 0 mm
continuous 12.1–54.4 W/m² · strobe 297.6–666.4 W/m²
Irradiance at 50 mm
continuous 3.4–11 W/m² · strobe 56.4–229.6 W/m²
Irradiance at 100 mm
continuous 0.7–1.6 W/m² · strobe 8.3–31.9 W/m²
Irradiance at 200 mm
continuous 1 W/m² · strobe 2.1–7.3 W/m²
General
Country of origin
Federal Republic of Germany
Weight (kg)
0.21

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Certificates

  • Certificate of conformityPDFENDownload
ProductDFL50 Dark Field Ring Light

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