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Machine Vision

Front Ring Illumination Darkfield

Low incidence angle of light. Field of view appears dark, defects appear bright through reflection into the camera.

Advantages:

  • Suitable for highly reflective shiny surfaces
  • Makes surface structure visible

Disadvantages:

  • Narrow working distance
  • Not suitable for flat surfaces

How to realize:

  • Darkfield LED Ringlight
  • Darkfield Fiber Optic Ringlight

Examples:

  • Ball Grid Array
Contact

Lighting and Imaging
SCHOTT North America Inc.

122 Charlton Street
Southbridge, MA 01550
USA
 +1 (508)765-9744
 +1 (508)764-6273
E-mail
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Trade Fairs & Events

04-25 to 04-26-2012

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Boston, MA

04-24 to 04-26-2012

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Baltimore, MD

05-08 to 05-10-2012

Vision Show

Boston, MA

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