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BL-CDW

Product Details

By easily configuring with Dino-Lite, the BL-CDW transmitted-light illuminator provides alternative ways to enhance the contrast of specimen with bright field and dark field modes.

The bright field mode of BL-CDW, which produces a collimated beam of light with no adjustment required, largely reduces the scattered light and therefore may reveal more detail comparing to a diffused backlight.

By switching to dark field mode with a simple touch, the BL-CDW generates a hollow cone of high-intensity light to form dark field illumination. The oblique illumination may reveal more surface details that are not well imaged under bright field illumination.

Note:The BL-CDW is suggested to be used with Dino-Lite at magnification higher than 100x.
SKU: BL-CDW

Model BL-CDW Backlight Illuminator
Unit Weight approx. 178 g = 0.4 lb. 6.27 oz.
Unit Dimension 51 mm (H) x 54.3 mm (Dia)
Package Dimensions 16 cm (L) x 16 cm (W) x 6 cm (H)
Working distance & field of view mm
Magnification 20 30 40 50 60 200 210 220 230
Working Distance 51.7 24.1 11 3.8 -0.6 -0.4 0.6 1.7 2.8
Field of View 21 x 15.7 14 x 10.5 10.5 x 7.9 8.4 x 6.3 7 x 5.2 2.1 x 1.6 2 x 1.5 1.9 x 1.4 1.8 x 1.4
Depth of Field 8.02 1.95 1.46

Working distance & field of view inch
Magnification 20 30 40 50 60 200 210 220 230
Working Distance 2.035 0.949 0.433 0.150 -0.024 -0.016 0.024 0.067 0.110
Field of View 0.827 x 0.618 0.551 x 0.413 0.413 x 0.311 0.331 x 0.248 0.276 x 0.205 0.083 x 0.063 0.079 x 0.059 0.075 x 0.055 0.071 x 0.055
Depth of Field 0.316 0.077 0.057
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price $149 $249 $199 $99 $329
Magnification 10x - 50x, 230x 10x - 50x, 230x 10x - 50x, 230x 10x - 50x, 230x 10x - 50x, 220x
Distance Standard Standard Standard Standard Standard
Connectivity USB 2.0 USB 2.0 USB 2.0 USB 2.0 USB 2.0
Resolution 640 × 480 pixels 640 × 480 pixels 640 × 480 pixels 640 × 480 pixels 1280 × 1024 pixels
LEDs White (8) White (8) White (8) White (4) White (8)
Polarizer X X X X X
Measurement X ✓ X X X
OS Windows XP, Vista, 7, 8, 10, 11
Mac OS 10.5+		 Windows XP, Vista, 7, 8, 10, 11
Mac OS 10.5+		 Windows XP, Vista, 7, 8, 10, 11
Mac OS 10.5+		 Windows XP, Vista, 7, 8, 10, 11
Mac OS 10.5+		 Windows XP, Vista, 7, 8, 10, 11
Mac OS 10.5+

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