Square Continuous Diffuse Illuminator
The SCDI (Square Continuous Diffuse Illuminator) provides extraordinary diffuse illumination performance. The patented design of the SCDI makes it ideal for moderately faceted and undulating specular surfaces.
The SCDI is designed for those critical applications involving highly specular surfaces where any reflections of camera aperture or "seams" in the lighting envelope will cause a vision system to see defects where none exist. Examples of such applications include compact disk artwork verification and the inspection of solder patterns on circuit boards. The NERLITE SCDI allows products to be inspected "in the package"--even blister-packaged pharmaceutical products and computer chips in the tube.
The SCDI is designed for imaging applications requiring significantly greater uniformity of diffuse illumination than provided by the DOAL.
- Excellent uniformity (±20% across the lighting envelope at close range)
- Extraordinary diffuse illumination
- Compact & easy to use
- Economical & low maintenance
- Illumination sources include LED, fiber optic and cold cathode fluorescent sources

Specs
Lighting Technique: Continuous Diffuse
SCDI®-25-LED
Light Aperture: 25 mm x 25 mm (1.0 in. x 1.0 in.)
Field Of View x Stand-Off 1: 12 mm (0.5 in.) x 25 mm (1.0in.)
L x W x H (mm/in.): 115.3 mm x 40.1 mm x 61.3 mm (4.54 in. x 1.58 in. x 2.41 in.)
Mounting: (2) M6
SCDI®-50 “V2”
Light Aperture: 51.6 mm x 39.6 mm
(2.02 in. x 1.56 in.)
Field Of View x Stand-Off 1: 25.4 mm (1.0 in.) x 12.7 mm (0.5 in.)
L x W x H (mm/in.): 120.7 mm x 58.2 mm x 54.8 mm (4.75 in. x 2.29 in. x 2.16 in.)
Mounting: (7) M6 x 1.0 x 9.5 (0.25 in.) DP
SCDI®-75-LED
Light Aperture: 59 mm x 76 mm (2.3 in. x 3.0 in.)
Field Of View x Stand-Off: 38 mm (1.5 in.) x 25 mm (1.0in.)
L x W x H (mm/in.): 138.4 mm x 82.6 mm x 77.0 mm (5.45 in. x 3.25 in. x 3.03 in.)
Mounting: (4) M6
SCDI®-25-FO
Source Type: Fiber Optic
Light Aperture: 25 mm x 25 mm (1.0 in. x 1.0 in.)
Field Of View x Stand-Off 1: 12 mm (0.5 in.) x 12 mm (0.5in.)
Fiber Optic Ferrule: 10 mm (0.393 in.) 1 Leg Bundle
L x W x H (mm/in.): 101.6 mm x 31.8 mm x 27.4 mm (4.00 in. x 1.25 in. x 1.08 in.)
Mounting: (2) 1/4-20 x 6.4 mm (0.25 in.)
SCDI®-50-FO
Source Type: Fiber Optic
Light Aperture: 50 mm x 38 mm (2 in. x 1.5 in.)
Suggested Field Of View: 25 mm (1 in.)
Suggested Stand-Off: 12 mm (0.5 in.)
L x W x H: 142.9 mm x 57.2 mm x 52.4 mm (5.63 in. x 2.25 in. x 2.06 in.)
Mounting: (2) ¼-20
SCDI®-100-FO
Source Type: Fiber Optic
Light Aperture: 100 mm x 100 mm (3.9 in. x 3.9 in.)
Suggested Field Of View: 50 mm (2 in.)
Suggested Stand-Off: 12 mm (0.5 in.)
L x W x H: 275 mm x 106.3 mm x 134.4 mm (10.83 in. x 4.19 in. x 5.29 in.)
Mounting: (4) M6
SCDI®-187-FO
Source Type: Fiber Optic
Light Aperture: 190.5mm x 146.0mm (7.50 in. x 5.75 in.)
Suggested Field Of View: 93.5 mm (3.68 in.)
Suggested Stand-Off: 25.4 mm (1 in.)
L x W x H: 273.1 mm x 196.8 mm x 189.7 mm (10.75 in. x 7.75 in. x 7.47 in.)
Mounting: (6) ¼-20 on front
SCDI®-25-FL
Source Type: Fluorescent, 30 kHz
Light Aperture: 25 mm x 25 mm (1 in. x 1 in.)
Suggested Field Of View: 12.5 mm (0.51 in.)
Suggested Stand-Off: 25.4 mm (1 in.)
L x W x H: 115.3 mm x 40.1 mm x 61.3 mm (4.54 in. x 1.58 in. x 2.41 in.)
Mounting: (2) M6
SCDI®-50-FL
Source Type: Fluorescent, 30 kHz
Light Aperture: 50 mm x 50 mm (2 in. x 2 in.)
Suggested Field Of View: 25.4 mm (1 in.)
Suggested Stand-Off: 25.4 mm (1 in.)
L x W x H: 145.1 mm x 56.4 mm x 106.7 mm (5.71 in. x 2.22 in. x 4.20 in.)
Mounting: (6) M6
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