Dr. Peter Hartmann
Principal Scientist retired at
SPIE Involvement:
| Board of Directors | Engineering, Science, and Technology Policy Committee | European Advisory Committee | Fellows Committee | Nominating Committee | Fellow status | Senior status | Symposium Chair | Conference Program Committee | Author | Instructor
Area of Expertise:
Optical Glass Properties Applications , ZERODUR Properties Applications , ZERODUR Bending Strength , Optical Glass and EU Directive RoHS , Optical Glass Standardization , Optical Glass Metrology
Profile Summary

Diploma in Physics at University of Mainz on optical pumping of short-lived Rb-isotopes
Doctorate in physics at Max-Planck-Institute Mainz on Development of Scintillation Glasses
Quality assurance and application of optical glasses, radiation shielding glasses and Zerodur
Projects involved: KECK, CHANDRA, ESO-VLT, i-line glass for Microlithography, HET, GRANTECAN, 4 m mirror blanks, LISA Pathfinder, ESO-ELT
For more than 25 years experience in optical glass, Zerodur and special optical glasses - specification, properties, measurement methods, application consulting, standardization, instruction
Recent specializations
Strength optical glass and zero expansion glass ceramic (ZERODUR),
Development of measurement methods for optical glass,
Dispersion properties of optical glasses,
Lobby work for optical glass and filter glass related to EU directive RoHS
(Awarded with Honorary Bear of German Industrial Federation SPECTARIS 2010 and 2018)
Schott user workshops for optical materials
ISO standardization for optical glass and optical elements

OPTENCE - Photonics competence cluster Hesse / Rhineland-Palatinate, Germany - Member of the Board until 4/2018, Honorary member
DIN German Inst. for Standardization Optics and Precision Mechanics Standards Committee - Vice President until 4/2017
DIN German Inst. for Standardization Working Group "Optical Materials" - Convener until 1/2018
ISO International Standarization Organization - Working Group "Raw Optical Glass" - Convener until 1/2018
Max-Planck-Institute for Astronomy Heidelberg Germany Member of the Board of Trustees

Publications (57)

Proc. SPIE. 10692, Optical Fabrication, Testing, and Metrology VI
KEYWORDS: Optical components, Rockets, Cameras, Glasses, Ceramics, Flint glass, Zerodur, Temperature metrology, Lead, Data analysis

Proc. SPIE. 10690, Optical Design and Engineering VII
KEYWORDS: Modeling, Zemax, Microscopes, Refractive index, Glasses, Optical simulations, Wavefront distortions, Systems modeling

Proc. SPIE. 10690, Optical Design and Engineering VII
KEYWORDS: Optical components, Lenses, Glasses, Distortion, Objectives, Photographic lenses, Tolerancing, Systems modeling

Proc. SPIE. 10371, Optomechanical Engineering 2017
KEYWORDS: Etching, Glasses, Ceramics, Corrosion, Humidity, Failure analysis, Probability theory, Ultra low expansion glass, Zerodur

Proc. SPIE. 10329, Optical Measurement Systems for Industrial Inspection X
KEYWORDS: Calibration, Glasses, Image processing, Wavefronts, Digital cameras, Adaptive optics, Optical testing, Photonics, Wavefront distortions

Proc. SPIE. 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
KEYWORDS: Mirrors, Diamond, Polishing, Data modeling, Etching, Corrosion, Monte Carlo methods, Failure analysis, Zerodur, Zerodur, Surface finishing

Showing 5 of 57 publications
Conference Committee Involvement (10)
SPIE Photonics Europe
3 April 2016 | Brussels, Belgium
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
23 June 2014 | Montréal, Quebec, Canada
SPIE Photonics Europe
13 April 2014 | Brussels, Belgium
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II
1 July 2012 | Amsterdam, Netherlands
SPIE Photonics Europe
16 April 2012 | Brussels, Belgium
Showing 5 of 10 published special sections
Course Instructor
SC1179: Optical Glass – Properties and Application-oriented Specification
Optical glass provides the main function in optical systems: precisely defined refraction of light with highest transmission. Large parts of the optical industry depend on this key material. Microscopes, binoculars, photo cameras, projectors are only few examples which are unthinkable without optical glasses. Their properties, however, differ considerably from those of other technical materials such as metals or plastics. Data sheet values of the refractive index extend to five decimal places (e.g. 1.51680). Homogeneity might be specified to even two more digits (e.g. 2&times;10<sup>-7</sup>). This extreme precision sets optical glass apart from most other materials. Whoever developed a new technical process with precision increased by a factor of ten knows that this usually requires effort also higher by a factor of ten. Producing material according to 10<sup>-5</sup> - 10<sup>-7</sup> specifications and proving their fulfilment is leading edge technology. <br/> For optical glass users it is important to know facts about its production and properties in order to specify optical elements adequately. Drawing requirements must assure sound function of the optical system without over-specifying, which might lead to higher costs, delivery time delay or even non-availability. Application lens formats extend from the millimeter range up to about one meter. For small parts glass properties are usually not expected to be critical. Most properties, however, do not scale up linearly with the glass items size. For large lenses and prisms the different scaling laws of the glass properties must be taken into consideration in order to obtain suitable quality. For designing and purchasing of optical elements it is very useful to know the technical conditions of producing, post-processing, quality inspection and application of optical glass. <br/> The course provides knowledge about optical glass: <ul> <li>Glass types and glass program <li>Material properties (Definitions, tolerances, measurement methods): Refractive index, dispersion, transmission, homogeneity, striae, stress birefringence <li>Production processes and their influences on glass properties, raw glass delivery formats <li>Specification of lenses and prisms for optical systems according to the international standards ISO 10110 (optical elements) and ISO 12123 (raw optical glass) <li>Availability of optical glasses, restrictions due to technical, economical and regulatory reasons. </ul>
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