Offner spectrometer design
Webb系统实现了模块化设计，前置成像镜头和后接光谱仪可独立成像。为保证对接后高光谱成像仪具有较好的像质，紫外镜头采用像方远心设计；光谱仪采用Offner结构，且反射镜实现了一体化设计，由两个元件组成，可实现同轴安装，极大降低了装调难度。 WebbThe purpose of the spectrometer design is to disperse the wavelength range across the width of the detector array L D. There is a large range of diode array detectors specifically designed for spectrometers. In general, if you need a compact spectrometer you should aim for a short detector (typically 1/4” or 6.4 mm).
Offner spectrometer design
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WebbPerformed mechanical design for space-flight and test hardware on numerous JPL/NASA programs, including an Offner spectrometer, a Mars drilling prototype, the Cloud Ice Radiometer airborne ... WebbA spectrometer ( / spɛkˈtrɒmɪtər /) is a scientific instrument used to separate and measure spectral components of a physical phenomenon. Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed. In visible light a spectrometer can ...
WebbWavefront errors of an Offner spectrometer with a freeform mirror. Values are given for 400 nm, 700 nm, and 1 µm, respectively. Table 2. Comparison of remaining wavefront errors of freeform and spherical designs, respectively. Configuration Spherical Free-Form Wavelength [nm] 400 700 1000 400 700 1000 WebbThe Offner imaging spectrometer in quadrature Xesús Prieto-Blanco, Carlos Montero-Orille, Héctor González-Nuñez, María Dolores Mouriz, Elena López Lago, and Raúl de la Fuente* ... Mouroulis, “Low-distortion imaging spectrometer design utilizing convex gratings,” Proc. SPIE 3482, 594 ...
Webb1 jan. 2024 · Spherical grating spectrometers. NASA Astrophysics Data System (ADS) O'Donoghue, Darragh; Clemens, J. Christopher. 2014-07-01. We describe designs for spectrometers employing convex dispersers. The Offner spectrometer was the first such instrument; it has almost exclusively been employed on satellite platforms, and has had … Webb17 juni 2024 · 2. Materials and Methods. We propose a design of the Offner imaging hyperspectrometer that contains two concentric (coaxial) optical elements. A distinctive feature of the hyperspectrometer layout proposed herein is that instead of fastening elements to the main platform, all primary optical elements are fastened to a tubular …
Webb28 juli 2024 · Theory of concentric designs for grating spectrometers. Appl Opt 1994; 33: 2648–2658. [Google Scholar] Chrisp MP. Convex diffraction grating imaging spectrometer. US patent 5880834, 1999. Prieto-Blanco X, Montero-Orille C, Couce B, de la Fuente R. Analytical design of an Offner imaging spectrometer. Opt Express 2006; …
WebbMentioning: 7 - This is a proposal and description of a new configuration for an Offner imaging spectrometer based on the theory of aberrations of off-plane classical-ruled spherical diffraction gratings. This new spectrometer comprises a concave mirror used in double reflection and a convex reflection grating operating in quadrature, in a concentric … is the middle school math praxis hardWebbMouroulis, P. Optical design of a coastal ocean imaging Tae Seong Jang, Kyung In Kang, and Seung-Wu Rhee // spectrometer / P. Mouroulis, R.O. Green, D.W. Wilson // Proc. of the conference “Optical Remote Sensing of the En- Optics Express. – 2008. i have supped full with horrorsWebb1 jan. 2024 · We describe designs for spectrometers employing convex dispersers. The Offner spectrometer was the first such instrument; it has almost exclusively been employed on satellite platforms, and has had little impact on ground-based instruments. is the middle way the eightfold pathWebb17 juli 2024 · My graduate advisor, Professor John P. Walters, who had designed (or worked with others to design) several generations of spatio-temporally resolving optical spectrometers, 1–6 once advised me, “Never build your own spectrometer.” Now that I and my collaborators have designed and built several spectrometers 7,8 and related … i have such sights to show you gifWebbgrating profiles, snap together self-aligning mechanical designs, and visible test techniques for IR systems. Keywords: Hyperspectral imaging, Offner spectrometer, Diamond turning, Diffraction grating INTRODUCTION Imaging Spectroscopy or Hyperspectral Imaging has become a powerful technique for many fields such as … i have sugar why do i get cold chillsWebb1 feb. 2024 · We propose a method for calculating the point scattering function (PSF) of an Offner imaging hyperspectrometer with a diffraction grating in the approximation of scalar diffraction theory. The method consistently takes into account limitations and diffraction of a light beam by elements of the hyperspectrometer system in accordance with the … is the midland highway closedWebbWe present the analytical design of an imaging spectrometer based on the three-concentric-mirror (Offner) configuration. The approach presented allows for the rapid design of this class of system. Likewise, high-optical-quality spectrometers are obtained without the use of aberration-corrected gratings, even for high speeds. Our approach is … i have suffered in this jail song