Lighting Imaging Examples for the Rubber, Resin and Plastics Industry
- Scratch Inspection of Plastic Cases
- Application Inspection for Adhesive on Plastic Containers
- Inspection of Engraved Characters on Rubber Molded Parts
- Inspection for Fine Scratch on Acrylic Plates
- Color Identification of Smartphone Cases
- Plastic plate invisible code inspection
- Alignment of Clear Films Inspection
- Presence/Absence Inspection of Tray Contents
- Engraved Characters Inspection on Plastic Surfaces
- Transparent Plastic Sheet Visual Inspection
- Transparent Container Foreign Materials and Stain Inspection
Scratch Inspection of Plastic Cases
The entire surface is evenly illuminated, making it difficult to detect scratches.
Illumination from a low angle makes it possible to highlight scratches.
| Type of inspection | Visual inspection |
|---|---|
| Workpiece | Plastic case |
| Before | Interior lamp |
| After | LDR-146BL2-LA1 |
| Result | Extracting the damage |
Lights used for the imaging
-
Low-angle ring lights LDR-146BL2-LA1
- Ring light that illuminates with direct light from a horizontal direction
- Illuminating closest to the workpiece
- Achieved a thin device that is 10 mm thick
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Application Inspection for Adhesive on Plastic Containers
It was difficult to detect the application of the adhesive using visible light lighting.
Only the adhesive causes fluorescent scattering, allowing for an image of the application status.
| Type of inspection | Application inspection for adhesive |
|---|---|
| Workpiece | Plastic containers |
| Before | LED visible light |
| After | HLDR-IP67-100UV2-365 |
| Result | Only detects the adhesive |
Lights used for the imaging
-
Ring light HLDR-IP67-100UV2-365
- Waterproof ring light with a condenser lens for enhanced brightness
- IP67 compliant and uses an M12 connector
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Inspection of Engraved Characters on Rubber Molded Parts
Character recognition is difficult due to the uneven surface of the rubber.
By extracting the surface irregularities of the rubber molded part, images can be acquired that facilitate character recognition.
Lights used for the imaging
-
Segmented ring light HPR2-DV Series
- Ring light with segmented emitting areas, HPR2-DV Series
- Effective for appearance inspection using photometric stereo
- Achieved through a solution combining multi-directional illumination and image composition
This is a made-to-order product.
Please contact your sales representative for more information.
Inspection for Fine Scratch on Acrylic Plates
It is difficult to detect fine scratches
Even with a fine scratch, it is possible to make an image with high contrast.
Lights used for the imaging
-
Flat lights TH2-83X75SW-PM
- Illuminate with highly directional diffuse light
- Available in a wide range of emitting surface sizes
- Optimized for workpiece edge detection
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Color Identification of Smartphone Cases
| Type of inspection | Visual inspection |
|---|---|
| Workpiece | Smartphone cases |
| Before | - |
| After | HPR2-200FC: full color (RGB) type |
| Result | Allows for color determination |
Lights used for the imaging
-
Ring light HPR2-200FC
- High-output and uniform diffused light
- Supports from low angles to high angles
- Full-Color (RGB) models added for greater application flexibility
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Plastic plate invisible code inspection
Fluorescent observation is difficult with white light.
Fluorescent observation for the invisible code is possible.
Lights used for the imaging
-
UV line light LNSP-300UV3-365-FN
- UV-LED light ideal for fluorescence excitation applications
- Available in a Wide Type for wide-area illumination and a Narrow Type for long-distance illumination
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Alignment of Clear Films Inspection
With visible light, it is difficult to form an image of the clear film.
Only the clear film causes scattering, emphasizing the edge.
| Type of inspection | Visual inspection |
|---|---|
| Workpiece | Clear film |
| Before | LED visible light |
| After | LNSP-300UV3-365-FN |
| Result | Fluorescence excitation using ultraviolet light |
Lights used for the imaging
-
UV line light LNSP-300UV3-365-FN
- UV-LED light ideal for fluorescence excitation applications
- Available in a Wide Type for wide-area illumination and a Narrow Type for long-distance illumination.
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Presence/Absence Inspection of Tray Contents
Converged light in the center interferes with stable inspection.
The whole thing is illuminated evenly, allowing for detection of present contents.
Lights used for the imaging
-
Ring light LFR-250RD2
- LEDs embedded around a circular light-guiding diffusion plate
- Uniformly diffused light emitted from a flat emitting surface
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Engraved Characters Inspection on Plastic Surfaces
It is difficult to observe the engraved characters due to uneven illumination.
When you attach the diffusion plate to the bar light and illuminate the workpiece, the engraved characters are evenly and brightly captured.
Lights used for the imaging
-
Bar light LDL2-80X16RD2
- Bar lights that use surface-mounted LEDs
- Rich lineup with 144 models
- Bar lights allow the illumination direction and angle to be freely adjusted
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Transparent Plastic Sheet Visual Inspection
For highly deflective workpieces, brightness is not uniform.
Wide light-emitting surface reduces the effect of deflection for uniform brightness throughout the entire image.
Lights used for the imaging
-
Diffused bar lights LB-300X50SW
- Wide emitting surface uniform diffused lighting
- Total of 338 models wide lineup
- High power type with overdrive also available
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
Transparent Container Foreign Materials and Stain Inspection
It is difficult to image foreign materials and contaminants.
Uniform diffused lighting illumination
from a wide light emitting surface
minimizes the effect of unevenness
and clearly images stains.
Lights used for the imaging
-
Diffused bar lights LB-300X150SW
- Wide emitting surface uniform diffused lighting
- Total of 338 models wide lineup
- High power type with overdrive also available
A wide variety of lighting shapes and wavelengths are also available.
Please contact your sales representative for more information.
MACHINE VISION LIGHTING SELECTION GUIDE
"We want to achieve stable and reliable image inspection."
"We're not sure what kind of imaging is possible."
"We don't know how to choose the right lighting."
If these challenges sound familiar, this guide is for you.
We've prepared a guide that clearly explains the fundamentals of machine vision inspection and lighting selection.
Whether you're new to machine vision or looking to strengthen your knowledge, this guide covers the essential points in an easy-to-understand format.
Learn why there are so many different types of machine vision lighting, why selecting the right lighting is critical to inspection performance, and how lighting affects imaging results.
The guide includes illustrations and real imaging examples to help you understand the concepts.
Download your free copy using the form.
