Lighting Methods with Bar Lights
Bar lights are most commonly used in one of these lighting methods. However, there are additional techniques that are specified in the respective product section.
Brightfield
By using a bar light as incident light, direct illumination causes reflections on the surface of the object being examined.
Low Angle
Using bar lights at a flat angle enables a contrast to be created at the edges, which allows slight illumination of the surface.
Darkfield
Positioned as a flat aligned illumination, the bar light highlights edges strongly while hardly any light falls on the surface.
LBA, LBL and LBO Bar Lights with Angle Changers for Machine Vision
wenglor LBA, LBL and LBO bar lights can be configured to suit almost any application. Pair the bar lights with the optional ZBAG angle changers to widen the beam angle and have flexibility and control of illumination across the field of view. The direct illuminators have a perfect balance between brightness and homogeneity, allowing the product to be used at both small and large working distances. The bar lights can be operated with high intensity in continuous mode or synchronized to the machine vision camera in strobe mode with increased luminosity (overdrive). They are available with white, red and infrared light.
Machine Vision Bar Lights – Effects and Features
: 24 V power connection
: Signal cable
: 24 V power connection + signal
LBT Mini Bar Light with Angle Changers for Industrial Image Processing
wenglor’s mini bar lights from the LBT series offer extremely flexible configuration for applications with limited space. They are characterized by a compact housing, high luminosity and uniform light distribution, making them suitable for both small and large working distances. The LBT mini bar lights can be used either continuously with high intensity or synchronously with the machine vision camera in strobe mode with increased brightness (overdrive). The optional ZBAG angle changers extend the illumination angle, allowing the illumination of the field of vision to be individually adjusted and controlled. The LBT series is also available in various light spectra, including white, red and infrared light.
LBT Mini Bar Lights – Wide Range of Product Highlights
LBD Diffuse Bar Light without Angle Changers
wenglor LBD bar lights are highly diffuse illuminators, perfect for diffuse low angle illumination, direct illumination at a close working distance and backlighting of specific features on the field of view. Thanks to integrated current control and flexible mounting options, the lighting is very easy to install and perfect for a myriad of Machine Vision and identification applications. They are available with white, red and infrared light.
LB9 IP69K Machine Vision Bar Light without Angle Changers
Waterproof IP69K Washdown Bar Lights
wenglor LB9 bar lights are industrial IP69K illuminators. The food grade enclosure is perfectly suited for environments subject to high pressure, high temperature washdowns containing steam and cleaning chemicals. The barlights are provided with L-brackets that allow 360° mounting, making them easy to install. They are available with red, infrared and white light.
- Easy installation
- Perfect for food, beverage and pharmaceutical Machine Vision applications
- Designed to withstand the harsh chemical cleaning and decontamination
- Wide ambient operating temperature range
IP69K Cable Gland
- IP69K protection
- For harsh environments
Internal Fans
- For homogenizing temperatures
- For moisture reduction
Ventilation
- For pressure equalization
- For moisture reduction
Smooth Body
- For reducing bacteria
- For easy cleaning
Function Principles and Illumination Techniques
| Brightfield | Low Angle | Darkfield | Dome | Back Light | Angle Changer Compatible | |
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| All bar lights are available with red, infrared and white light. | ||||||
Function Principles and Illumination Techniques
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All bar lights are available with red, infrared and white light.
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