Micro assembly

Miniaturized optical systems with highest precision, integration density and complexity

 

Miniaturized optical systems are increasingly characterized by a high degree of complexity, since the optical components have to be combined with electronic components and micromechanical actuators to form systems with a high integration density. We at Fraunhofer IOF have outstanding expertise in micro assembly and assembly technologies for such microoptical systems.

Your partner for high precision assembly for microoptical systems

 

We develop a solution for your task in the field of micro assembly of optical components from prototype to series production.

 

Our services and competences

 

The development of handling technologies that are not only suitable for the precise gripping and positioning of small and often sensitive components, but also for use in production environments with consistently high quality of the assembled systems, is an essential prerequisite for fixture-supported or automated assembly.

Our range of services includes:

  • development of assembly and adjustment technologies
  • realization of precision devices
  • selection of suitable adhesives and the development of dosing technology
  • analysis and transfer of assembly processes

Handling of micro parts

The small and extremely sensitive surfaces of the components to be handled require specific development and adaptation of handling equipment for precise gripping and positioning, especially for components of complex shapes and made of different materials.

Our offer:

  • Development of handling equipment for small components
  • Design, construction and testing of grippers and gripper changing systems

Grippers for the assembly of microoptical systems

 

CAD image of a handling device
© Fraunhofer IOF
CAD image of a handling device

Positioning and adjustment

Microsystems and microoptical systems in particular often require micrometer or sub-micrometer-precise positioning in up to six degrees of freedom of components in an assembly.

The analysis and optimization of such processes is carried out at Fraunhofer IOF with the aid of various positioning systems that have a movement range of up to 400 mm x 200 mm with a bidirectional repeatability of 0.3 µm.

Verification of bidirectional positioning accuracy in relation to mechanical interfaces
© Fraunhofer IOF
Verification of bidirectional positioning accuracy in relation to mechanical interfaces
 

Markets and applications

 

With our expertise in the field of micro assembly, we can cover many different areas of application. These include optical components for earth observation systems in aerospace, applications in medical technology and much more.

Examples:

  • Hermetic sealing of optics for endoscopy systems
  • Assembly of individual filter elements for multispectral filters
  • Assembly and adjustment of objective lenses in mounts
  • Adjustment and bonding of prism blocks
Filter array with integrated individual filter strips for earth observation instruments
© Fraunhofer IOF
Filter array with integrated individual filter strips for earth observation instruments
Assembly and alignment of an optical assembly for blue-ray DVDs
© Fraunhofer IOF
Assembly and alignment of an optical assembly for blue-ray DVDs
Design, production and integration of components for space spectrometers with exceptional accuracy
© Fraunhofer IOF
Design, production and integration of components for space spectrometers with exceptional accuracy
 

Your advantages of working with us

We not only take care of the design and assembly of microoptical and mechanical components and systems as well as their positioning and fixing with an accuracy of up to the sub-micrometer range. We also develop suitable assembly and adjustment devices, take care of CE marking and declaration of conformity and ensure the high standards of product assurance in space projects.

Integration and high-precision adjustment of a prism assembly (PG+P) for ESA's "Copernicus Anthropogenic Carbon Dioxide Monitoring Mission" (CO2M mission for short)
© Fraunhofer IOF
Integration and high-precision adjustment of a prism assembly (PG+P) for ESA's "Copernicus Anthropogenic Carbon Dioxide Monitoring Mission" (CO2M mission for short)

Technical equipment

We work with assembly equipment such as grippers, manipulators, cameras, dosing devices and joining tools. Robots and hexapods also support the precise positioning of components.

© Fraunhofer IOF

Our research strength

Research reports

The research strength of our experts is reflected, among other things, in the contributions to the Fraunhofer IOF Annual Report. Every year, selected research results from the previous year are published in this report (archive annual reports) Here you can find the articles on developments relating to joining technologies from previous years:

Do you have questions about our services?  

In a personal meeting, we will advise you on our (individual) range of services and our core competencies. Please contact us. 

Are you interested in a cooperation? Contact us!

We develop special and visionary solutions - tailored to the needs and wishes of our customers. Let us talk about your idea(s).

 

You would like to work with us?
Then apply with us!

We are always looking for creative minds and committed people who want to develop innovative solutions with light together with us. Visit our job portal or send us a speculative application: