Dark Field Illuminators
NERLITE DF-Series Dark-Field Illuminators provide effective low-angle lighting to targeted regions. DF-Series machine vision lights use either a single tier of LEDs mounted at either 70º (DF-50) or 90º (DF-100-1 & DF-150-1) to the optical axis, or three tiers of LEDs mounted at 75º to the optical axis (DF-150-3). For machine vision applications with parts moving at high speeds (e.g. conveyors), strobe models are available to "stop" motion for the camera.
NERLITE DLA (Dual Line Array) Series Illuminators provide two linear projections of LED-based machine vision lighting. Each linear array is independently adjustable to control the angle of illumination to the region of interest. DLA-Series machine vision lights are available in either red or white strobe models.
Machine vision lighting from Dark-Field Illuminators enhances the contrast of surface features such as laser embossed or engraved marks or surface defects. DF-Series illuminators are particularly suited for applications such as BGA ball placement, reading laser-etched symbologies and inspecting surfaces with geometric contours. DLA-Series machine vision lights are especially well suited to label inspection applications.
- Provides effective, low-angle illumination
- Enhances contrast of surface features such as laser embossed or engraved marks
- Supports applications such as BGA ball placement, reading laser-etched symbologies and label inspection
Specs
DF-50
Lighting Technique: Dark-field
Light Aperture: 50.8 mm (2.0 in.)
Field Of View x Stand-Off 1: 17.8 mm (0.7 in.) x 7.6 mm (0.3 in.)
L x W x H (mm/in.): 88.9 mm x 76.2 mm x 9.5 mm (3.5 in. x 3.0 in. x 0.38 in.)
Mounting: (2) M3 x 0.5 through holes
DF-100-1
Lighting Technique: Dark-field
Light Delivery: 1 tier, 90 deg.
Light Aperture: 100.1 mm (3.94 in.)
Field Of View x Stand-Off 1 50.8 mm (2 in.) x 12.7 mm (0.5 in.)
L x W x H (mm/in.): 139.7 mm x 139.7 mm x 14.3 mm (5.50 in. x 5.50 in. x 0.56 in.)
Mounting: (4) M4 + (4) 6-32 on top of unit
DF-150-1
Lighting Technique: Dark-field
Light Aperture: 101.6 mm (4 in.)
Field Of View x Stand-Off: 76.0 mm x 12.7 mm (3 in. x 0.5 in.)
L x W x H (mm/in.): 178.4 mm x 178.4 mm x 14.2 mm (7.02 in. x 7.02 in. x 0.56 in.)
Mounting: (4) 8-32, 0.10" depth, top of unit
DF-150-3
Lighting Technique: Dark-Field, 3 tier, 75°, non-diffuse
Light Aperture: 73.7 mm (2.9 in.)
Field Of View x Stand-Off 1: 38 mm (1.5 in.) x 12 mm (0.47in.)
L x W x H (mm/in.): 161.8 mm x 139.7 mm x 25.9 mm (6.37 in. x 5.50 in. x 1.02 in.)
Mounting: (4) 6-32 on top of unit
DF-200-1 Dark Field (Continuous)
Lighting Technique: Dark-field, diffuse
Light Aperture: 203.2 mm (8 in.)
Suggested Field Of View: 100 mm (3.93 in.)
Suggested Stand-Off: 6.35 mm (0.25 in.)
L x W x H: 254.0 mm x 254.0 mm x 14.2 mm (10.0 in. x 10.0 in. x 0.56 in.)
Mounting: (4) 8-32 and (4) M4 on top of unit
DF-200-1 Dark Field (Strobed)
Lighting Technique: Dark-field, diffuse
Light Aperture: 203.2 mm (8 in.)
Suggested Field Of View: 100 mm (3.93 in.)
Suggested Stand-Off: 6.35 mm (0.25 in.)
L x W x H: 254.0 mm x 254.0 mm x 14.2 mm (10.0 in. x 10.0 in. x 0.56 in.)
Mounting: (4) 8-32 and (4) M4 on top of unit
DLA-75-LED
Lighting Technique: Dark-field or Bright-field
Light Aperture: 69.9 mm x 40.4 mm (2.75 in. x 1.59 in.)
Field Of View / Stand-Off 1: 38 x 50 mm (1.5 x 2 in.) / 76 mm (3.0in.)
L x W x H (mm/in.): 97.7 mm x 106.9 mm x 29.7 mm (3.85 in. x 4.21 in. x 1.17 in.)
Mounting: (6) 8-32 (4 top, 2 side of unit)
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