Zoom lens
Polarization filters
IP67 degree of protection
Simple mounting
Strobe and continuous mode
Three light sources
Illumination Methods with Spot Lights
Illumination and vision systems that use spot lights typically work with the following illumination methods. Further specific methods are detailed in the descriptions of the individual products.
Brightfield
Using spot lights as an incident light causes reflections on the surface of the object being inspected due to the direct illumination.
Low Angle
Placing spot lights at a flat angle creates contrast along the edges of the object, resulting in minimal illumination of the surface.
Darkfield
When spot lights are aligned flat, they clearly accentuate the contours of the object’s edges, while only a small proportion of light falls on the remaining surface.
Point Illumination
For focused illumination of smaller areas, only a spot light is required.
Coaxial Illumination
In combination with telecentric lenses, magnifying lenses or macro lenses with in-line illumination inputs, the spot light can be guided along the optical axis of the camera. This results in even and shadow-free illumination.
Backlight
A diffuse attachment allows the spot light to be used as space-saving backlight for applications with limited installation space. Telecentric lenses increase the visual field.
Feature Video
Features of Spot Lights at a Glance
Spot lights impress with its robust aluminum housing with IP67 degree of protection, which reliably protects against dust and water. The M30 thread offers flexible mounting options. Thanks to the internal heat sink, they impress in both powerful strobe and continuous modes, ensuring uniform illumination even in challenging application environments. The integrated power control also optimizes the performance and reliability of this illumination technology.
Advantages for Industrial Image Processing
Option for Strobe Mode OverDrive
- Powerful 2 A strobe mode OverDrive
- Durable 0.65 A continuous mode due to internal heat sink
- Industry standard M12 connector
Durable Housing
- Robust against environmental influences with IP67 degree of protection
- Quick and easy installation thanks to M30 thread
- Aluminum housing for stability and durability
Versatile Light Sources
wenglor spot lights are extremely powerful and bright, with an illumination intensity of up to 360,000 lux in strobe mode OverDrive. They are available in the light sources white light, red light and infrared light.
Classification in the electromagnetic spectrum:
Classification in the electromagnetic spectrum:
- White light 5,700 K
- Red light 630 nm
- Infrared light 850 nm
Flexibility of the Zoom Lens
The lockable zoom lens allows a variable beam angle in the range of 4 to 26 degrees with constant homogeneity. With precise position repeatability, it provides precise visual field alignment to achieve optimal illumination with perfect Gaussian curve and high intensity. The easy manual adjustment allows quick adaptation to different working distances and makes the spot light ideal for industrial image processing applications where flexible illumination is of great importance.
Illumination Intensities of the White Light Variant
| 60 mm working distance | 100 mm working distance | 200 mm working distance | 500 mm working distance | 1,000 mm working distance | |
|---|---|---|---|---|---|
| Continuous mode, beam angle 4° | 140,000 Lux | 67,500 Lux | 34,500 Lux | 9,500 Lux | 3,000 Lux |
| Continuous mode, beam angle 26° | 20,000 Lux | 10,500 Lux | 4,000 Lux | 1,900 Lux | 1,000 Lux |
| Strobe mode OverDrive, beam angle 4° | 360,000 Lux | 190,000 Lux | 70,000 Lux | 24,500 Lux | 8,500 Lux |
| Strobe mode OverDrive, beam angle 26° | 50,000 Lux | 27,000 Lux | 10,000 Lux | 4,500 Lux | 2,500 Lux |
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60 mm working distance
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|---|---|---|---|
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Continuous mode, beam angle 4°
140,000 Lux
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Continuous mode, beam angle 26°
20,000 Lux
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Strobe mode OverDrive, beam angle 4°
360,000 Lux
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Strobe mode OverDrive, beam angle 26°
50,000 Lux
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100 mm working distance
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Continuous mode, beam angle 4°
67,500 Lux
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Continuous mode, beam angle 26°
10,500 Lux
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Strobe mode OverDrive, beam angle 4°
190,000 Lux
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Strobe mode OverDrive, beam angle 26°
27,000 Lux
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200 mm working distance
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Continuous mode, beam angle 4°
34,500 Lux
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Continuous mode, beam angle 26°
4,000 Lux
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Strobe mode OverDrive, beam angle 4°
70,000 Lux
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Strobe mode OverDrive, beam angle 26°
10,000 Lux
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500 mm working distance
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Continuous mode, beam angle 4°
9,500 Lux
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Continuous mode, beam angle 26°
1,900 Lux
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Strobe mode OverDrive, beam angle 4°
24,500 Lux
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Strobe mode OverDrive, beam angle 26°
4,500 Lux
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1,000 mm working distance
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Continuous mode, beam angle 4°
3,000 Lux
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Continuous mode, beam angle 26°
1,000 Lux
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Strobe mode OverDrive, beam angle 4°
8,500 Lux
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Strobe mode OverDrive, beam angle 26°
2,500 Lux
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More Functions Thanks to Interchangeable Accessories
Two further illumination methods can be implemented from the spot light with the appropriate accessories. The attachments replace the standard lens and are available individually or pre-assembled.
Applications of the Coaxial Spot Light
Quality Assurance for Flat Surfaces
Detection of Fine Structures on Flat Surfaces
Inspection of Reflective or Shiny Surfaces
Backlight
The diffuse illumination attachment allows the spot light to be used as a compact backlight for confined areas. In combination with the integrated C mount adapter and a telecentric lens, it can also be expanded into a powerful telecentric backlight with an enlarged visual field. Strobe OverDrive mode is available in all configurations.
Possible Uses of the Backlight
Accurate Measurement of Round or Transparent Objects
Position and Presence Checks
Inspection of Surfaces
The Video Shows the Optional LSL Series Lenses in Detail
Spot Light Applications
Spot Illumination for Robot-Guided Quality Inspection of Interior Parts
Before installing interior parts in passenger cars, the mounting elements must be checked for their presence and correct position. For this purpose, a smart camera with one spot light per side is mounted on a cobot. Due to the light weight and small size of the illuminations, they can be attached directly to the robotic arm. While the cobot scans the parts to be inspected, the spot lights provide precise illumination of the elements so that the camera can reliably detect each mounting element.
Position Determination during Depalletization
In logistics, pallets with the boxes on them are depalletized fully automatically by robots. To ensure that the robot can grip the boxes safely, the exact position of the grip holes of each box must be determined. With the help of four cameras and adjacent spot lights for precise illumination, the robot can reliably detect the gripping holes and grip the crates safely. The spot light is ideal for applications with limited space due to its small format.
Product Overview
| Product type | Light source | Size | Connection | Degree of protection | Beam angle | |
|---|---|---|---|---|---|---|
| LSLW001 | Spot light standard | White light | M30 × 1.5 | M12 × 1; 5-pin | IP67 | ±4…26° |
| LSLR001 | Spot light standard | Red light | ||||
| LSLI001 | Spot light standard | Infrared light | ||||
| LSLW002 | Spot light coaxial | White light | IP50 | 120° | ||
| LSLR002 | Spot light coaxial | Red light | ||||
| LSLI002 | Spot light coaxial | Infrared light | ||||
| LSLW003 | Spot light diffuse | White light | IP67 | |||
| LSLR003 | Spot light diffuse | Red light | ||||
| LSLI003 | Spot light diffuse | Infrared light |
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Product type
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|---|---|---|---|---|---|---|---|---|
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Spot light standard
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Spot light standard
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Spot light standard
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Spot light coaxial
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Spot light coaxial
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Spot light coaxial
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Spot light diffuse
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Spot light diffuse
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Spot light diffuse
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Light source
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White light
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Red light
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Infrared light
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White light
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Red light
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Infrared light
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White light
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Red light
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Infrared light
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Size
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M30 × 1.5
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IP50
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IP67
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Connection
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M12 × 1; 5-pin
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120°
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Degree of protection
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IP67
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Beam angle
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±4…26°
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