Advanced Illumination · RING LIGHTS
DF198 MicroBrite™ Diffuse Ring
AI-DF198-WDiffuse ring light creating bright field or dark field effects - compact profile, multiple sizes; 47,000 Lux, RGB option.
- Wavelengths available
- WHI, RGB, 455 - 625 nm
- Supply voltage
- 24V DC
- Ip rating
- IP40

About the AI-DF198-W
The DF198 Series is a diffuse ring light for surface inspection where contrast comes from surface topography. Four opposing M4 mounting points let the head be positioned and angled in the machine frame without an adapter plate, and a curved diffuser spreads the output across a wide band of angles, keeping hot spots off reflective surfaces.
Five light diameters cover 50.00 mm to 280.0 mm outside and 31.6 mm to 254.3 mm inside, so the series fits a compact lens or clears large optics. Set closer than its own diameter the head gives low angle dark field illumination, and set further away the same head gives diffuse bright field, so one light covers two geometries.
Heights of 14.1 mm to 15.7 mm keep the ring shallow enough to sit close to the camera, and weights of 63 g to 358 g suit robot mounting. The anodised aluminium housing is rated IP40 and certified to CE, RoHS and IEC 62471. The DF198 range offers white, 455 nm, 530 nm and 625 nm plus an RGB build for multi-channel controllers.

Specifications
Available Wavelengths
- Wavelengths available
- WHI, 455 nm, 530 nm, 625 nm, RGB
- Colour temperature white
- 5500 K
- White peak secondary
- n/a (broadband)
- Visible peak wavelengths
- 449 (455), 517 (530), 632 (625)
- Rgb available
- Yes (C1 connector only)
Lens / Light Conditioning
- Available lensing
- No Lenses
- Beam forming method
- Curved diffuser, diffuse multi-angle (Dark Field close / Bright Field far)
- Recommended working distance
- <= diameter for Dark Field; > diameter for Bright Field
- Field of view options
- n/a (set by housing OD; see Part Number tab)
- Test unit
- 115 mm white unit
- Test working distance
- 50 mm
- Max illuminance klux
- 60.3
- Max irradiance wm2
- 190
- Strobe multiplier inline
- Up to 5x (ICS-3 / ICS-3S)
- Strobe multiplier pulsar
- Up to 10x (C5 connector + Pulsar 320E)
Photobiological Risk Factors (Iec 62471)
- Group exempt wavelengths
- N/A (none Exempt)
- Group 1 wavelengths
- 455, 530, 625, WHI, RGB
- Group 2 wavelengths
- N/A (none Group 2)
Lumen Maintenance & Compliance
- Lumen maintenance white
- L70 (50,000 Hours)
- Compliance
- CE, RoHS, IEC 62471
Mechanical - Sizing
- Form factor
- Round ring light
- Available sizes outer diameter
- 050, 095, 115, 180, 280 mm
- Height
- 14.1 to 15.7 mm
- Inner diameter
- 31.6 to 254.3 mm
- Outer diameter
- 50.0 to 280.0 mm
- Weight
- 063 (050) / 127 (115) / 226 (180) / 358 (280) - 095 size weight not stated
- Mounting
- M4 mounting holes (4x opposing)
- Housing material
- Anodized Aluminum Housing, Acrylic Window, PVC Cable Jacket, Steel Black Oxide Fasteners
Thermal & Certification
- Operating case temp
- 25 C to 60 C
- Operating ambient temp
- 0 C to 35 C
- Ip rating
- IP40
- Compliance
- CE, RoHS, IEC 62471
Electrical - General
- Input voltage
- 24 V DC (nominal, all lights/controllers unless noted)
- Cable info
- 80 in -0/+6 in (2 m -0/+150 mm), 105C rated, foil shield w/ drain
- Current range standard controller
- 0.13 (050/625) to 3.60 (280/RGB)
- Current range 24v driver
- 0.32 (115) to 0.96 (280); n/a for 050
- Background controller draw
- ~0.1 (not included in current figures above)
Connectors & Control Configurations
- Connector control codes
- C1, C5, IC, I3, I3S, 24
- Alternative connectors
- M8, M12 (available with IC, I3, I3S, 24 options only)
- Rgb connector restriction
- RGB available with C1 connector only
- Analogue dimming
- Yes - 0-10V Analog Control (IC, I3/I3S configs)
- Trigger input
- Yes - Gate Low (IC) / Active High Trigger (I3/I3S)
- Gui software
- n/a (controller-level GUI via DCS-100E/103E/Pulsar 320E Ethernet interface)
Optical
- Wavelength / colour
- White, 455, 530, 625 nm, RGB
- Beam
- Diffuse bright field
- Intensity
- High
- Irradiance
- 47,000 Lux
Environmental
- Operating temperature
- 0 to +35°C
Electrical
- Supply voltage
- 24V DC
Application
- Applications
- Inspection / Machine Vision
Request a quote or talk to an applications engineer
Tell us about your application and we will confirm the right product and configuration, or specify a variant outside the catalogue.
