Home Scratch/Dig Measurement DIOPTIC ARGOS Series - Automated Scratch/Dig Inspection Systems

DIOPTIC ARGOS Series - Automated Scratch/Dig Inspection Systems

Product Code:
ARGOS Series
Manufacturer: DIOPTIC
  • Automated surface inspection systems according to ISO 10110-7
  • Fully automated inspection of hundreds of elements without user intervention
  • Based on established ARGOS technology, perfectly adapted to the specific inspection task
  • Combines multiple illumination configurations for improved defect detection
  • Works on flats, lenses, wafers, micro-optics, aspheres, fibre ends, and more

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ARGOS – DIOPTIC’s solution for an automated surface inspection according to ISO 10110-7 – offers many advantages compared to the classical manual-visual inspection. To cover the very different requirement profiles of different optical areas, they have developed a whole family of devices.

Scratch/dig inspection with ARGOS: objective, reproducible and fast
Until recently, the industry standard for surface inspection according to ISO 10110-7 is manual-visual inspection. This is a weak point in the production chain especially for precision optics with high demands on accuracy and documentation. Results are subjective and depend on many factors, such as fatigue and concentration of the inspectors. This is where their automated and objective inspection system ARGOS can improve results and reliability of optical testing.

Your advantages with automated scratch/dig inspection
With ARGOS they offer an operator-independent and automated test according to ISO 10110-7, with objective and reproducible results. Lengthy discussions caused by different estimates of the size of individual defects or time-consuming analyses under the microscope now can be avoided. Unpleasant disputes with customers or suppliers can be quickly settled to the satisfaction of both parties on basis of objectively reproducible measurement results.

All results are documented in detailed pdf test reports. Whether in incoming goods inspection or quality assurance, testing with ARGOS gives you process security and allows you to detect errors as early as possible. Due to the good documentation, you also have a good proof of quality for your suppliers and customers. More and more companies demand a traceability in the process chain also for optical parts. ARGOS can help with this by tracing serial numbers and process steps.

By automating your surface scratch/dig inspection, you can save on time and money while ARGOS runs unattended with several samples as a test batch on its sample stage. With ARGOS you can guarantee the same high quality standards time and again and reduce your dependence on individual employees with the “golden eye”.

ARGOS works for all relevant size-based specifications for surface defects down to 5/1×0.016 according to ISO 10110-7. Even the smallest defects down to 1 µm in size can be reliably detected. From a size of about 2.5 µm, reliable size measurements are possible.

The automation of your surface inspection according to ISO 10110-7 offers you many advantages: The objectivity of the system dramatically improves reliability and repeatability of testing and helps to reduce cost for scrapped parts. ARGOS works unattended and can be operated with inexperienced personnel, saving costs of expensive highly skilled workforce who can be redeployed to other tasks. Finally, the detailed test reports with images of identified defects are highly useful for many of our customers to further improve manufacturing processes.

Process reliability and process improvement through digitized inspection
By using ARGOS, the inspection process becomes largely independent of subjectivity and human error. ARGOS makes clear and objective pass/fail decisions. For each inspection, a detailed inspection report is automatically generated, the results are documented clearly and comprehensively.

The user-independent and digitized testing provides process reliability through reproducible and objective results. Complaints from customers can be prevented from the outset or rejected as unjustified. The possibility to provide your customers with a documentation of the surface specification test according to ISO 10110-7 creates confidence and underlines your quality standards. Conversely, defective components can be reliably rejected in the incoming goods inspection by testing with ARGOS and complaints can be lodged with the supplier.

The ARGOS system can be connected directly to your quality assurance system, so a complete assurance and documentation of the process chain is guaranteed. This also creates the necessary data basis for tracing process and product quality with the help of statistical methods. For example, deviations in the coating process are detected before they become a problem.

By digitizing the surface inspection ARGOS offers analysis possibilities that go beyond the requirements of ISO 10110-7. By evaluating particle densities and histograms, for example, coating processes can be optimized. For this purpose, even large areas up to 200 mm in diameter can be recorded in a few minutes, including counting of all particles and defects.
ARGOS test reports can be adapted to customer requirements and are available in different formats. The layouts of the PDF reports are very clear and readable and there are computer readable data formats that are well suited for further data analysis.

Intuitive handling – one-click scratch/dig inspection
The ARGOS Pro software is intuitively designed and has a clear and simple user interface. The operation of ARGOS can be learned in a few hours and is possible for users without in-depth knowledge of the system.

Inspection tasks are defined in profiles. These measurement recipes contain all necessary parameters of the part, such as diameter, clear aperture, or radius of curvature. It is also possible to store your specific parameters such as drawing, part or material numbers. For ARGOS matrix with automation, the positions of the test items in a cassette are also stored in the profile, so that the inspection of all inspected parts in the cassette runs fully automatically without further user input.

The operator then simply selects the appropriate profile and starts the test. Objective surface inspection could not be simpler!

The overall result of the inspection is unambiguous and clearly highlighted on the user interface and in the generated inspection report. In addition, the operator has access to helpful visualizations, for example, to understand why a part failed or to examine the defect development of good parts over several process steps.

Applications
ARGOS systems can be used for many different applications. The testing of optical elements according to ISO 10110-7 is their standard – but not the only possibility. If you use your own surface quality criteria independent of the ISO norm, ARGOS can be modified to classify defects specifically to your requirements.

Do you have an inspection task for a component with polished surfaces? ARGOS is deliberately designed to be open so that it can be easily adapted to customer-specific requirements. No matter if your components are made of glass, plastic, metal, or semiconductor – if you want to detect defects or contamination of surfaces, ARGOS is the right choice. Defect classification can be carried out according to almost any specifications. Please do not hesitate to get in touch!

Flat optics
ARGOS matrix is ideal for the accurate inspection of plano optics such as mirrors, filters, or protective glasses. Especially with difficult specifications ARGOS can show its strengths. For example, ARGOS is ideally suited for components of high-power laser systems where even the smallest dust particles can lead to defects.

With the ARGOS matrix measuring head defects down to 2 µm can be detected and thus specifications down to 5/1×0.016 can be inspected. Defects of the 3 next smaller steps (i.e., 0.01, 0.0063, 0.004) are also considered, as required by ISO 10110-7. In addition to locating real defects, the detection of contamination is also reliably possible.

The components are taken with a snapshot, which leads to an extremely fast inspection (see also Micro-optics).

For larger samples up to 205 x 205 mm ARGOS matrix 200 is the best solution. This system also allows for automated inspection of many flat optics in a tray – without further user intervention.

Wafers
Also in the optical industry, components are increasingly produced on wafers and are separated later. With ARGOS matrix 200 the inspection of glass or silicon wafers up to 200 mm (or 8″) diameter is possible.
There are different possibilities for the analysis:

  • Inspection of the entire surface to a specification according to ISO 10110-7
  • Statistical analysis of particle or defect size distributions and densities for process analysis
  • Evaluation of any number of partial areas of the total area according to ISO 10110-7 and summary of the results in a test report.

Especially when coating thin wafers, the surface often deforms. The actual shape of the surface is measured by ARGOS contactless and precisely. On the one hand, this documents the shape of the surface, on the other hand it ensures that ARGOS is always optimally focused.

Also, for wafer-level optics ARGOS matrix 200 is the ideal solution. Here, all individual elements on a wafer are characterised fully automatically in individual measurements and as a result, individual test reports are generated for each element as well as a map with marked good and rejected parts.

Spherical and aspherical lenses, cylindrical lenses, volumes
All ARGOS systems use automatic focus stacking to inspect curved surfaces of lenses or to find defects in the volume. Since the high resolution of the ARGOS measuring head requires a limited depth of field, several scans with different positions of the camera’s focal plane are generated and combined by the software.

With this technology, the position of defects in depth can be determined with an accuracy of up to 50 µm. This enables a multitude of applications:

  • Inspection of spherical or aspherical surfaces with almost any shape
  • Inspection of front and rear side of (at least) one-sided flat elements in one operation and without turning – with clear assignment of defects to front or rear side.
  • Analysis of volume defects such as air bubbles in plastic injection moulded parts and distinction of surface defects
  • Testing of cemented surfaces for achromats and beamsplitters
  • Testing of prisms.

By using different illumination configurations and their combination almost all topologies can be inspected.

With the ARGOS matrix measuring head defects down to 2 µm can be detected and thus specifications down to 5/1×0.016 can be inspected. Defects of the 3 next smaller steps (i.e., 0.01, 0.0063, 0.004) are also considered, as required by ISO 10110-7. Single small curved optics up to 25 mm diameter can be inspected with ARGOS matrix, whereas ARGOS matrix 200 is suitable for larger optics up to 205×205 mm and the automated testing of a many smaller optics.

Micro-optics
Micro-optics with diameters starting from about 1 mm can be tested very efficiently with the ARGOS matrix system. Surfaces are recorded in one shot, which allows for a very fast inspection. The ARGOS matrix system is modular. Several image field options and different illuminations are available to tailor the instrument to your measurement and automation requirements. Especially for the inspection of micro-optics, highest resolutions can be achieved and, if required, defects smaller than 1 µm in size can still be reliably detected.

Handling of individual components is much more difficult for micro-optics. Therefore, the ARGOS matrix system was intentionally designed so that components in trays, carriers or holders can be tested. For example, it is possible to insert assembled coating holders into the device to check all optics before and after coating.

Assembly of optical components
In manufacturing processes where for example filters or protective glasses are hermetically bonded to another optical component, it is very important to avoid trapped particles. With an ARGOS matrix system this can be guaranteed in a fast and safe way directly at the assembly station with only a few measurements. Both sides of the filter/protective glass as well as the surface to be sealed, e.g., a sensor, are scanned with ARGOS matrix, cleaned if necessary, then mounted and finally a further measurement proves that no particles are trapped.

Fibre end surfaces
High quality standards of cleanliness apply to the end surfaces of optical cables, as used in systems for laser cutting and welding of metals. Due to the high laser power, even the smallest contamination can cause damage to coatings and components.

Their solution ARGOS fibre cable for the inspection of fibre end surfaces also allows the inspection of solid, water-cooled fibres with standardised connectors (e.g., QBH). The geometry of the ARGOS system has been adjusted for easy handling. End faces with a diameter of up to 22 mm can be inspected in a few seconds. Even defects and particles with a size of 1 µm are reliably detected. Also, typical defects like pits and burn marks can be accurately identified with ARGOS.

The ARGOS family
The variety of optical components is immense. As diverse as optical components can be, so are the requirements for surface inspection:
From the smallest micro-optics for endoscopes or mobile phones, to demanding optics for high-power lasers or astronomical applications, to the inspection of wafers or wafer-level optics.

To meet this broad range, we have developed the ARGOS family:

  • ARGOS matrix 200 is ideal for automated serial inspection of entire production batches. In addition, ARGOS matrix 200 can test individual components of up to 205 x 205 mm in size.
  • ARGOS matrix is particularly efficient for optics with diameters up to about 25 mm.
  • ARGOS 2.1 inspects plane and rotationally symmetric optics with diameters of about 5 to 55 millimeters.
  • ARGOS 200 extends the measuring range in the direction of larger diameters up to 200 mm and is particularly suitable for high-resolution inspection of wafers for particle and defect distributions.

A general overview about the capabilities of the ARGOS family members can be found here:

ARGOS matrix 200 – the best solution for all optics and automated serial inspection

ARGOS matrix – the universal instrument for the inspection of individual optics

ARGOS 2.1 – the special unit for rotationally symmetric optics

ARGOS 200 – maximum resolution (not only) for large optics and wafers

ARGOS fibre cable – testing of fibre end surfaces

The best solution for all optics and automated serial inspection
With the XY-Scan module, the ARGOS matrix 200 enables the automated surface inspection of dozens or, depending on the size, hundreds of elements without user intervention. The individual components are placed on “part specific” trays with numbered cavities and are inspected automatically one after the other. During the measurement process time, for example a sample carrier containing 30 parts could take approximately 60 minutes, no operator intervention is required! From this, the system automatically generates a detailed test report for each optical component. A summary report also gives a review of the most important results and a pass/fail decision for each individual element.

Defects down to 2 µm can be detected and thus specifications down to 5/1×0.016 can be inspected. Defects of the three next smaller steps (i.e., 0.01, 0.0063, 0.004) are considered as required by the ISO 10110-7 specification. By combining advanced illumination techniques, even hardly visible and small defects (down to 1 µm) such as fine scratches or wipes are reliably detected. Furthermore, to detect holes and defects in chrome masks or mirrors, the system can be equipped with a transmitted light module.

The built-in automatic Multi-View Stitching enables ARGOS matrix 200 to fully test large pieces up to 205×205 mm edge to edge with full nominal resolution. The system generates a test report of the entire surface from an array of standard field of view area measurements.
Several test areas with different requirements can be defined within the surface to be tested.

Would you like to measure even larger optics? With ARGOS matrix 400, test pieces of up to 400×400 mm can be tested with full nominal resolution. Also, with this device the automated testing of any number of parts on a carrier with a maximum test area of 400×400 mm is possible.

DIOPTIC can adapt the modular system individually to your needs. Are you interested in serial inspection of a few different optics? They can optimize the test duration by precisely adapting the resolution of the system to your requirements.

You can read more about automated serial inspection with ARGOS matrix 200 in the product sheet in the Download tab.

The universal instrument for the inspection of individual optics
ARGOS matrix
, the smallest member of the ARGOS family offers a stand-alone measuring head, which provides the perfect conditions for high-resolution inspection of smaller optics of any shape. Defects down to 2 µm can be detected and thus specifications up to 5/1×0.016 can be inspected. Defects of the 3 next smaller steps (i.e., 0.01, 0.0063, 0.004) are considered as required by ISO 10110-7. The combination of several illumination techniques allows for reliable detection of even hardly visible defects such as wipes or scratches.

ARGOS matrix is available in 3 standard configurations for different inspection sizes and resolutions.

Do you have an inspection task where larger elements must be inspected, but smallest defects below 10 µm are irrelevant? Thanks to the modular design of the ARGOS matrix system, we can offer you a solution perfectly adapted to your requirements.

Furthermore, the ARGOS matrix measuring head can also be very well integrated into larger installations or measuring systems. The ARGOS software can be easily remote controlled via our Web API. So, nothing prevents a complete integration into your automated system.

The special unit for rotationally symmetric optics
The standard device ARGOS 2.1 for optics with up to 55 mm diameter guarantees reliable detection of defects and contamination. Inspection is possible up to 5/1×0.025 according to the regulations of ISO 10110-7. This makes the device suitable even for demanding high power laser applications. Curved surfaces and volumes for detection of air bubbles or inclusions can be inspected with automatic focus stacking. A combined inspection of surfaces and volumes in one scan is also possible.

The larger the optics, the more efficient the inspection, as a scan of the 55 mm diameter surface is performed in two seconds. The data processing of the 250 megapixel images is also highly optimized, so it takes only a few seconds to obtain the result.

ARGOS 2.1 is the consistent enhancement of their successful ARGOS 2 device. Many years of experience in the market and valuable feedback from their customers have gone into the design of the device and the software. The maximum test diameter was increased from 45 mm to 55 mm. In addition, now even lenses with higher curvature can be tested. This makes the instrument more universal than ever before and allows testing of an even wider range of optical components.

Maximum resolution (not only) for large optics and wafers
ARGOS 200
is the right choice for all customers who also need to inspect large optics or wafers up to 200 mm/8″ diameter. It enables the inspection of large areas in highest resolution and is still fully optimized for speed. ARGOS 200 inspects a 200 mm wafer in a few minutes. The entire surface is scanned fully automatically.

On request, with an additional sensor, ARGOS 200 can measure the surface and fully parameterize the inspection automatically. This is particularly useful for the inspection of thin wafers that are easily warped by coatings. ARGOS automatically compensates this and determines the actual shape of the wafer and the extent of the distortion.

Furthermore, ARGOS 200 can also inspect entire production batches of small flat optics on a 200 mm diameter carrier at once. You will receive inspection reports per component as well as a collective report with all results.

Testing of fibre end surfaces
Using ARGOS fibre cable, fibre end surfaces are inspected quickly and reliably. The high-resolution scanning of the end surfaces of fibre optic cables with standardized connectors (e.g., QBH) allows the detection of contamination and defects down to 1 µm.

The measuring head is identical to our high-resolution model ARGOS 200, so that even smallest particles and burns are detected properly.

For more information about the ARGOS systems download the product sheets in the Downloads tab. Contact us for additional specifications.



 

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