Ultra-Precision Machining [ PDF 0.86 MB ]

Ultra-Precision Machining [ PDF 0.86 MB ]

F R A U N H O F E R I N S T I T U T e F o R app l ied O P T I cs a N D precision engineering I O F
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1 Freeform optics with reference features.
2 Diamond milled micro lens array.
3 Freeform machining of a lightweight
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ULTRA-PRECISION
MACHINING
mirror.
Motivation
-- ­Non-rotational symmetric surfaces,
Ultra-precision cutting with diamond tools
-- Freeform surfaces
enables flexible manufacturing of various
-- ­Segmented surfaces
toric, cylindric
surface shapes in optical quality.
Fraunhofer Institute for Applied The Fraunhofer IOF develops and qualifies
Optics and Precision Engineering IOF
advanced manufacturing technologies for
Microstructures
generating complex optical shapes. Even
Albert-Einstein-Straße 7
sophisticated requirements given by the
-- Micro lens arrays
07745 Jena, Germany
optical design will be realized with modern
-- Reflection gratings, transmission gratings
machine equipment.
-- Fresnel structures
Director
After the systematic analysis, the adequate
-- Grooves
Prof. Dr. Andreas Tünnermann
machining technique (diamond turning,
flycutting, shaping, micromilling) will be
Department Precision Engineering
selected and further developed to fit the
Head of Department
particular application.
Dr. Ramona Eberhardt
Moulds
-- Replication tools for plastics
(hot embossing, injection moulding,
Contact
Optical components, mirrors
Andreas Gebhardt
Phone +49 3641 807-340
[email protected]
-- Tools for glass hot moulding
-- ­Rotationally symmetric: plane surfaces,
spherical and aspherical shapes
-- ­Complex optical shapes such as parabo-
www.iof.fraunhofer.de
UV reaction moulding)
lic, ellipsoidic, conic surfaces, off-axis
aspheres