Dear Ladies and Gentlemen
In addition to the light geometry and the illumination angle, the wavelength plays a crucial role in selecting the right lighting. However, this point is often neglected. Yet, it is precisely this factor that can be decisive in solving your application.
In this newsletter, we will show you how you can optimise your application with little tricks and the right light colour.
Dear Ladies and Gentlemen
In addition to the light geometry and the illumination angle, the wavelength plays a crucial role in selecting the right lighting. However, this point is often neglected. Yet, it is precisely this factor that can be decisive in solving your application.
In this newsletter, we will show you how you can optimise your application with little tricks and the right light colour.
TARGETED SELECTION OF THE WAVELENGTH FOR MAXIMUM CONTRAST WITH COLOURED OBJECTS
TARGETED SELECTION OF THE WAVELENGTH FOR MAXIMUM CONTRAST WITH COLOURED OBJECTS
- Importance of wavelength selection:
Particularly crucial when working with colored objects and surfaces - Ideal combination with monochrome cameras:
The right light color significantly improves the efficiency of machine vision systems - Contrast increase without filter:
Increasing the image contrast in the test image – even without the use of optical or software filters - Principle of color reflection:
Objects reflect specific wavelengths that make them appear colored
Example: Red objects reflect red light; other wavelengths are absorbed
- Lighting effect on the B/W image of the monochrome camera:
Red test part with red light = bright in the B/W image
Red test part without red component in the light = dark in the B/W image - Use of complementary contrast:
Strongest contrast effect when illuminated with a color complementary to the object color
Examples:
Yellow object with blue lighting = black
Yellow object with red or green lighting = bright
SHORT COLOUR REFLECTION DEMO VIDEO
In the following video, Linda Mueller shows you briefly and clearly what effects different colored lighting have on the result of the test image:
SHORT COLOUR REFLECTION DEMO VIDEO
In the following video, Linda Mueller shows you briefly and clearly what effects different colored lighting have on the result of the test image:
APPLICATION AREAS IN PRACTICE
APPLICATION AREAS IN PRACTICE
There are various areas of application for colored lighting in industrial image processing. Here are some examples:
- Optimised print image control in the packaging industry
- Simplified assembly of colored plastic parts
- Improving object recognition in pick & place tasks
Would you like to optimise your Machine Vision application with the right light colour?
Or would you like more detailed information on the topic of “Light & Colour”?
MORE ABOUT THIS IN THE LUMIMAX® KNOWLEDGE BASE
Or reply to this email or call us at +49 (0)3681 / 455 19-0.
Would you like to optimise your Machine Vision application with the right light colour?
Or would you like more detailed information on the topic of “Light & Colour”?
Or reply to this email or call us at +49 (0)3681 / 455 19-0.
iiM AG
Neuer Friedberg 5
98527 Suhl
County court: Jena, CRB: 305890
VAT no.: DE813288450
Supervisory board Chairman:
H. Freund, P. Anacker, A. Müller
Executive board: Dr. G. Roth
