Microscan, Nerlite Darkfield Series

Dark field illuminators provide effective low-angle lighting to targeted regions. These machine vision lights enhance the contrast of surface features such as laser embossed or engraved marks or surface defects, and are particularly suited for applications such as BGA ball placement, reading laser-etched symbologies and inspecting surfaces with geometric contours.

Dark field illuminators use either a single tier of LEDs mounted at either 70º (DF 50 models) or 90º (DF 100, DF 150-1 models) to the optical axis, or three tiers of LEDs mounted at 75º to the optical axis (DF 150-3 models).

Available in 2 colors and 5 sizes
Provides effective, low-angle illumination
Enhances contrast of surface features such as laser embossed or engraved marks

Illumination Example:
Embossed logo on a metal surface: Low angle illumination provides a high contrast image

Functionality:

DF 50

DESCRIPTION	TYPE	nm/K	CONT. CURRENT	STROBE CURRENT	mcd/cm²
DF-50, Red Continuous	NON-DIFFUSE	660 nm	69 mA		6250
DF-50, White Continuous	NON-DIFFUSE	6500 K	120 mA		7000

Aperture Diameter: 2” (51 mm) Field of View: 0.70” (18 mm)
Stand Off: 0.30” (8 mm) Weight: 5 oz. (136 g)
Dimensions: H 0.38” (9.5 mm) x W 3” (76.2 mm) x D 3.5” (88.9 mm)

DF 100

DESCRIPTION	TYPE	nm/K	CONT. CURRENT	STROBE CURRENT	mcd/cm²
DF-100, Red Continuous	NON-DIFFUSE	636 nm	100 mA		760
DF-100, Red Continuous	DIFFUSE	636 nm	100 mA		400

Aperture Diameter: 3.9” (100 mm) Field of View: 2” (51 mm)
Stand Off: 0.50” (13 mm) Weight: 9 oz. (256 g)
Dimensions: H 0.56” (14.2 mm) x W 5.5” (139.7 mm) x D 5.5” (139.7 mm)

DF 150

DESCRIPTION	TYPE	nm/K	CONT. CURRENT	STROBE CURRENT	mcd/cm²
DF-150-1, Red Continuous	NON-DIFFUSE	636 nm	100 mA		340
DF-150-1, Red Continuous	DIFFUSE	636 nm	100 mA		410

Aperture Diameter: 4” (102 mm) Field of View: 3” (76 mm)
Stand Off: 0.50” (13 mm) Weight: 18 oz. (504 g)
Dimensions: H 0.56” (14.2 mm) x W 7.02” (178.4 mm) x D 7.02” (178.4 mm)

DF 200

DESCRIPTION	TYPE	nm/K	CONT. CURRENT	STROBE CURRENT	mcd/cm²
DF-200, Red Continuous	DIFFUSE	636 nm	200 mA		170

Aperture Diameter: 8” (203 mm) Field of View: 3.9” (100 mm)
Stand Off: 0.50” (13 mm) Weight: 20 oz. (567 g)
Dimensions: H 0.56” (14.2 mm) x W 10” (254 mm) x D 10” (254 mm)

TITLE	DOCUMENT TYPE	SIZE
Dark Field Illuminator Specification Sheet	Catalog	690 KB
Dark Field Illuminator Configuration Guide	Catalog	793 KB
Dark Field Illuminator Drawings	Software	1155 KB

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