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Ring Lights for Industrial Image Processing

The wenglor LRL ring light is equipped with LEDs arranged in a circle that ensure uniform illumination intensity across the entire test object. With two sizes and three light colors, it is suitable for a wide range of applications and camera requirements in industrial image processing. The optional angle changers enable flexible adjustment of the illumination angle, allowing for better field of view homogeneity. The LRL ring light is characterized by its durability, reliability and energy efficiency, making this illumination technology the ideal choice for quality control, surface inspection and object identification in challenging industrial environments.
Two sizes
IP67 degree of protection
Simple mounting
Strobe and continuous mode
Angle Changer
Three light sources

Illumination Methods with Ring Lights

The use of ring lights in industrial image processing varies depending on the working distance. The following illumination methods are usually used:

Illumination from Oblique Angle

When the LRL ring light is oriented at a small angle to the test surface, glare is reduced and edges, scratches and engraved marks are highlighted.

Bright Field for Long Working Distances

With an illumination intensity of up to 150,000 lux, the LRL ring light emits intense light, which ensures optimum illumination even at large working distances.

Feature Video

High User-Friendliness and Flexibility

Two Different Ring Light Sizes

  • LRLx100 Small ring light
    • Suitable for confined spaces and compact applications
    • Provides a smaller visual field and ideal for smaller working ranges
  • LRLx200 Large ring light
    • For larger lenses needed for high resolutions
    • Higher power for larger, more demanding applications

Compatible with Angle Changers

  • Various variants with magnetic mounting, alignment pins and locking screws for permanent mounting
  • Very bright, uniform and diffuse lighting solution with different beam angles without shading
  • Available in both ring illumination sizes
LRLx100 Small Ring Light
±10 degree beam angle
±17 degree beam angle
±25 degree beam angle
±10 degree beam angle/polarized
±17 degree beam angle/polarized
±25 degree beam angle/polarized
Polarized only
LRLx200 Large Ring Light
±10 degree beam angle
±17 degree beam angle
±25 degree beam angle
±10 degree beam angle/polarized
±17 degree beam angle/polarized
±25 degree beam angle/polarized
Polarized only

Flexible Mounting Options

  • Six M4 mounting threads
  • Comprehensive assembly accessories including mounting adapters
  • Connection via a 5-pin M12 plug
     

Three Different Light Types

  • Available in the light sources white light, red light and infrared light.
  • Positioning within the electromagnetic spectrum:
    • White light 5,700 K
    • Red light 630 nm
    • Infrared light 850 nm

Light Output of the Ring Light with White Light

60 mm working distance 100 mm working distance 200 mm working distance 500 mm working distance 1,000 mm working distance
LRLW100, continuous mode 18,000 Lux 56,500 Lux 79,000 Lux 26,500 Lux 7,600 Lux
LRLW100, strobe mode overdrive 65,800 Lux 201,600 Lux 284,400 Lux 93,600 Lux 27,300 Lux
LRLW200, continuous mode 2,200 Lux 5,800 Lux 23,000 Lux 53,000 Lux 29,000 Lux
LRLW200, strobe mode overdrive 6,900 Lux 18,200 Lux 7,200 Lux 166,000 Lux 91,000 Lux
60 mm working distance
LRLW100, continuous mode
18,000 Lux
LRLW100, strobe mode overdrive
65,800 Lux
LRLW200, continuous mode
2,200 Lux
LRLW200, strobe mode overdrive
6,900 Lux
100 mm working distance
LRLW100, continuous mode
56,500 Lux
LRLW100, strobe mode overdrive
201,600 Lux
LRLW200, continuous mode
5,800 Lux
LRLW200, strobe mode overdrive
18,200 Lux
200 mm working distance
LRLW100, continuous mode
79,000 Lux
LRLW100, strobe mode overdrive
284,400 Lux
LRLW200, continuous mode
23,000 Lux
LRLW200, strobe mode overdrive
7,200 Lux
500 mm working distance
LRLW100, continuous mode
26,500 Lux
LRLW100, strobe mode overdrive
93,600 Lux
LRLW200, continuous mode
53,000 Lux
LRLW200, strobe mode overdrive
166,000 Lux
1,000 mm working distance
LRLW100, continuous mode
7,600 Lux
LRLW100, strobe mode overdrive
27,300 Lux
LRLW200, continuous mode
29,000 Lux
LRLW200, strobe mode overdrive
91,000 Lux

Convergence Light Attachment

The convergence light attachment is a kind of angle changer that can be used to effectively focus light. This minimizes ring effects, which often lead to uneven illumination of the center of the test object.

Additional Highlights of the LRL Ring Light

Efficient TIR Optics
Durable Housing
Integrated Power Control for Power Electronics
IP67 Degree of Protection

Direct Mounting of the LRLx100 on C Mount Lenses

The small LRLx100 ring light can be attached directly to C mount lenses using a special adapter. In this way, the illumination system is directly integrated without the need for additional brackets or mounting elements. The ring light is automatically centered and positioned in line with the camera’s field of view by direct connection to the C mount lens, ensuring that the test object is always ideally illuminated. This configuration requires only one camera or light mount, simplifying setup and minimizing space requirements, which is especially beneficial for quality control or surface inspection in confined application environments.

Applications

Product Overview

Product type Inside diameter Connection Degree of protection Beam angle Light source
LRLW100
LRLR100
LRLI100
Ring light 37 mm M12 × 1; 5-pin  IP67 ±5° White light
Red light
Infrared light
LRLW200
LRLR200
LRLI200
Ring light 76 mm M12 × 1; 5-pin  IP67 ±7° White light
Red light
Infrared light
Product type
Ring light
Ring light
Inside diameter
37 mm
76 mm
Connection
M12 × 1; 5-pin 
M12 × 1; 5-pin 
Degree of protection
IP67
IP67
Beam angle
±5°
±7°
Light source
White light
Red light
Infrared light
White light
Red light
Infrared light
Product Comparison