Visual inspection in transmitted light
in standardized light Ri 97 or bright version

In addition to solutions for image processing, there are always test objects that need to be visually inspected and evaluated by humans.

For this area of visual inspection, our LED lights are specially tailored to the needs of backlight or transmitted light inspection by humans.

Due to the various applications of our light tables, we offer 2 different versions:

A standardized light version that has a high color rendering index of >Ri95 in the color spectrum. This is important wherever it is necessary to assess colors. High light quality is essential for the accurate reproduction of colors.
A bright version for tasks where brightness plays a more significant role than color reproduction.

Transillumination of medical devices

Visual inspection of edges and structures

Transillumination for foreign particles

Visual assessment of prints

Light table backlight INDUSTRY
in flat version

This assembly is designed for harsh environments or for the food or medical sectors, as the smooth and sturdy housing is easy to clean. The 5 mm thick, anti-glare cover plate provides a comfortable working surface.

As an accessory, the external controller for switching and dimming is recommended. It can be placed flexibly at the workstation.

Catalog page 6

Light table backlight INDUSTRY ST
with tilt function

The basic light has been expanded with various accessory components:

Tilt adjuster for different angles
5 mm float glass sheet
Stop angle

Templates or sample parts can be easily placed for inspection.
The tilting function at different angles allows for a comfortable working position.

Catalog page 7

Customer specifications

Durchlichtbeleuchtung als ESD Variante für die Prüfung von elektronischen Komponenten — ESD variant

Hinterleuchtung von Prüflingen mit Warmweiß - Kaltweiß, Einstellbar — variable light color

kundenspezifische Prüfeinheit mit LED-Leuchte und schwarzer Abschirmung — according to customer specification

externer Controller für den paralellen Anschluß von 2 Leuchten — central control

This is precisely where our strength lies. Because planistar manufactures the lights in-house, we can produce customised backlighting with short delivery times.

So you don't have to follow our standard programme. We adapt exactly to your requirements and the conditions on site.

This saves you costs in the

Concept of the system,
Construction and in the
Evaluation in industrial image processing.

Our production processes are planned in such a way that a customised light has almost the same throughput as a standard light. The only difference is that the customised luminaire is precisely documented. This means that we are able to supply replacements even years later.

Benefit from the co-operation with planistar.
Lights direct from the manufacturer

Sustainability at planistar

In the revision of our product series, we consistently incorporate sustainability, as even the smallest details add up to create a significant whole.

This includes everything from resource and energy conservation, the careful selection of materials we use, to packaging and disposal.

Brightness in the free group (photobiological safety)
Standardized LED lights for comfortable work, reducing fatigue
Very flat design for ergonomic working
Anti-reflective surface prevents disturbing reflections
Reduction of raw materials while maintaining the same properties
All materials can be recycled after their service life
Packaging is 100% recyclable

More information on sustainability can be found here.

The main applications of Backlight INDUSTRY

Backlighting for visual inspection is now used in many areas of the manufacturing industry. We have compiled a small selection of applications from our customers.

Transillumination of materials

Translucent materials are illuminated with a suitable light source for this process. The goal is the detection of:

Material inclusions
Purity (foreign body detection)
Level control
Inspection of seals
General damage, etc.

Brightness and light color must be tailored to the respective test object. The features to be detected should neither be too bright (overexposure) nor too dark when illuminated.

Inspection for completeness

For translucent trays, backlighting is helpful to detect incorrect placements more easily and safely. This tool enhances the contrast between correct and incorrect placements, which reduces eye strain and helps maintain the employee's focus.

For assemblies such as printed circuit boards, backlighting enables clear identification of missing or incorrect components.

Inspection of edges

Inspection of edges and borders

In this process, the test objects are placed on a light surface to enhance the contrast, making it easier to identify the edges. The inspection checks for:

Chipping (outer edges and holes)
Edge roughness
Material damage
Chipping, etc.

The light should not be too bright in this case either, as it would cause the edges to be overexposed. The features would then no longer be visible.

Inspection of glossy surfaces

Typical inspection task when assessing reflective test objects

The light is directed towards the viewer (a mix of transmitted and reflected light) and reflects off the object. This creates a good contrast with the features to be identified. These include:

Defects
Scratches
Fingerprints
Residues, etc.

The light source must be chosen in the correct size, as otherwise, especially with irregularly shaped test objects, the reflection and thus the inspection area may be too small. The correct brightness is also crucial. We recommend a dimmable version.

When inspecting glossy surfaces, we have the option to print rigid patterns onto the light surface. This allows the detection of even the finest irregularities. The type of print (stripes, grid, size) can be customized to meet customer specifications.

Tel	+49 (0) 9364 8060-0
Fax	+49 (0) 9364 8060-29