Bauer, Martin and Baumbach, Dirk and Buder, Maximilian and Börner, Anko and Grießbach, Denis and Peter, Gisbert and Santjer, Eilke and Säuberlich, Thomas and Schischmanow, Adrian and Schrader, Sigurd and Walter, Ingo (2015) MERTIS: geometrical calibration of thermal infrared optical system by applying diffractive optical elements. Proc. SPIE, 9608. doi: 10.1117/12.2188120.
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Official URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2436088
Abstract
Geometrical sensor calibration is essential for space applications based on high accuracy optical measurements, in this case for the thermal infrared push-broom imaging spectrometer MERTIS. The goal is the determination of the interior sensor orientation. A conventional method is to measure the line of sight for a subset of pixels by single pixel illumination with collimated light. To adjust angles, which define the line of sight of a pixel, a manipulator construction is used. A new method for geometrical sensor calibration is using Diffractive Optical Elements (DOE) in connection with laser beam equipment. Diffractive optical elements (DOE) are optical microstructures, which are used to split an incoming laser beam with a dedicated wavelength into a number of beams with well-known propagation directions. As the virtual sources of the diffracted beams are points at infinity, the resulting image is invariant against translation. This particular characteristic allows a complete geometrical sensor calibration with only one taken image avoiding complex adjustment procedures, resulting in a significant reduction of calibration effort. We present a new method for geometrical calibration of a thermal infrared optical system, including an thermal infrared test optics and the MERTIS spectrometer bolometer detector. The fundamentals of this new approach for geometrical infrared optical systems calibration by applying diffractive optical elements and the test equipment are shown. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Item URL in elib: | https://elib.dlr.de/99007/ | ||||||||||||||||||||||||||||||||||||||||||||||||
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Document Type: | Editorship of Proceedings | ||||||||||||||||||||||||||||||||||||||||||||||||
Title: | MERTIS: geometrical calibration of thermal infrared optical system by applying diffractive optical elements | ||||||||||||||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | 1 September 2015 | ||||||||||||||||||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||||||||||||||||||
Volume: | 9608 | ||||||||||||||||||||||||||||||||||||||||||||||||
DOI: | 10.1117/12.2188120 | ||||||||||||||||||||||||||||||||||||||||||||||||
Series Name: | Proc. SPIE | ||||||||||||||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||||||||||||||
Keywords: | Calibration ; Diffractive optical elements ; Optical systems ; Sensor calibration ; Sensors ; Spectrometers ; Vision ; Lasers ; Bolometers ; Optical testing | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | Space Exploration | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Program: | R EW - Space Exploration | ||||||||||||||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben BepiColombo (old) | ||||||||||||||||||||||||||||||||||||||||||||||||
Location: | Berlin-Adlershof | ||||||||||||||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Optical Sensor Systems > Information Processing for Optical Systems Institute of Optical Sensor Systems > Optics, Calibration and Validation | ||||||||||||||||||||||||||||||||||||||||||||||||
Deposited By: | Schischmanow, Adrian | ||||||||||||||||||||||||||||||||||||||||||||||||
Deposited On: | 09 Nov 2015 06:39 | ||||||||||||||||||||||||||||||||||||||||||||||||
Last Modified: | 10 May 2016 23:33 |
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