Abstract:
A multi field of view hyperspectral imaging device (300) and method for using the same are described herein. In one embodiment, the multi field of view hyperspectral imaging device comprises multiple fore optics (308, 310), multiple fold mirrors (312, 314), a slit including multiple openings (318, 320), a spectrometer (302), and a 2 - dimensional detector.
Abstract:
In the spectroscopy module 1, a light detecting element 4 is provided with a light passing opening 4b through which light made incident into a body portion 2 passes. Therefore, it is possible to prevent deviation of the relative positional relationship between the light passing opening 4b and a light detection portion 4a of the light detecting element 4. Further, an optical element 7, which guides light made incident into the body portion 2, is arranged at the light passing opening 4b. Therefore, light, which is to be made incident into the body portion 2, is not partially blocked at a light incident edge portion of the light passing opening 4b, but light, which is to be made incident into the body portion 2, can be guided securely. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
A monolithic Offner spectrometer is described herein as are various components like a diffraction grating and a slit all of which are manufactured by using a state-of-the-art diamond machining process. In one embodiment, a monolithic Offner spectrometer is directly manufactured by using a diamond machining process. In another embodiment, a monolithic Offner spectrometer is manufactured by using molds which are made by a diamond machining process. In yet another embodiment, a diffraction grating is directly manufactured by using a diamond machining process. In still yet another embodiment, a diffraction grating is manufactured by using a mold which is made by a diamond machining process. In yet another embodiment, a slit is directly manufactured by using a diamond machining process.
Abstract:
Die Vorrichtung zur Erfassung des Spektrums elektromagnetischer Strahlung innerhalb eines vorgegebenen Wellenlängenbereichs ist versehen mit einem Substrat (12), einer oberhalb des Substrats (12) angeordneten ersten Lochmaske (20) aus einem für Strahlung innerhalb des vorgegebenen Wellenlängenbereichs undurchlässigen Material, wobei die erste Lochmaske (20) eine Vielzahl von ersten Fenstern (22) aufweist, einer Vielzahl von in dem Substrat (12) angeordneten, für Strahlung innerhalb des vorgegebenen Wellenlängenbereichs empfindlichen Sensorelementen, und einer oberhalb der ersten Lochmaske (20) angeordneten, zweite Fenster (36) aufweisenden zweiten Lochmaske (32) aus einem für die Strahlung innerhalb des vorgegebenen Wellenlängenbereichs undurchlässigen Material. Die zweiten Fenster (36) der zweiten Lochmaske (32) sind überlappend mit den Fenstern der ersten Lochmaske (20) angeordnet und gegenüberliegende Ränder der jeweils zwei sich überlappenden Fenster der beiden Lochmasken (20,32) definieren die Größe einer jeweils einem Sensorelement zugeordneten Strahlungsdurchlassöffnung (42) zum Durchlassen von Strahlung innerhalb des vorgegebenen Wellenlängenbereichs zu dem unterhalb der Strahlungsdurchlassöffnung (42) angeordneten Sensorelement. Für die Erfassung der Intensität von elektromagnetischer Strahlung bei jeder interessierenden Wellenlänge innerhalb des vorgegebenen Wellenlängenbereichs ist mindestens eine Strahlungsdurchlassöffnung (42) mit einer der interessierenden Wellenlängen zugeordnete Größe vorgesehen.
Abstract:
A method and system for the remote quantitative detection of a compound in the atmosphere. A spectrometer (6) is attached to a moving platform (1) for measuring a light spectrum along a first path (10) between the spectrometer and a surface area (8). A second light spectrum is measured along a second path (7) between the spectrometer and said surface area (8) which second path has a length different from the first path. The two spectra are compared to determine the concentration of the compound.
Abstract:
A spectroscopy device that separates input light into a plurality of wavelength ranges includes a metal body (10) with a hole or aperture (20; 21) which is open on the upper side. The hole or aperture (20; 21) is formed in a polygonal shape having at least a pair of opposite faces (11,12; 1103) not parallel to each other in horizontal cross-section, and inner side faces of the hole or aperture are finished as mirror-reflective surfaces (11,12; 1103). Polarized input light inputted from the opening to the hole or aperture is reflected by the reflection surfaces (11,12; 1103) and a standing wave is generated inside of the hole or aperture (20; 21) by self interference, whereby the input light is separated into a plurality of wavelength ranges.
Abstract:
In the spectroscopy module 1, a light absorbing layer 6 having a light-passing hole 6a through which light L1 advancing into a spectroscopic portion 3 passes and a light-passing hole 6b through which light L2 advancing into a light detecting portion 4a of a light detecting element 4 passes is integrally formed by patterning. Therefore, it is possible to prevent deviation of the relative positional relationship between the light-passing hole 6a and the light-passing hole 6b. Further, since the occurrence of stray light is suppressed by the light absorbing layer 6 and the stray light is absorbed, the light detecting portion 4a of the light detecting element 4 can be suppressed from being made incident. Therefore, according to the spectroscopy module 1, it is possible to improve the reliability.
Abstract:
Eine Vorrichtung (10) zur Messung einer Spektralverteilung eines mit einer Druckeinrichtung hergestellten Druckerzeugnisses (12) mit einem Leuchtmittel (20) zum Beleuchten des Druckerzeugnisses (12), einem optoelektronischen Messmittel (32) zum Messen des Remissionswertes eines Abschnitts des Spektrums des vom Druckerzeugnis (12) remittierten Lichtes (26), einem optischen Dispersionsmittel (28) zum Dispergieren der Wellenlängen des remittierten Lichtes (26) und einer für das Dispersionsmittel (28) maßgeblichen Lichteintrittsspaltebene, ist erfindungsgemäß dadurch gekennzeichnet, dass die für das Dispersionsmittel (28) maßgebliche Lichteintrittsspaltebene durch die Oberfläche des zu untersuchenden Druckerzeugnisses (12) geschaffen ist.