Abstract:
Disclosed herein is a method of analyzing spectrum using multi-slit member and multi-channel spectrograph using the method. The multi-channel spectrograph includes a focusing lens (12a) for focusing the focus of an objective light (2) generated in a light source (4) and passed through a specimen (3). A slit unit passes the objective light focused by the focusing lens (12a) through at least one slit formed therein. A concave grating (16) diffracts the objective light (2) passed through the slit unit. A detector unit detects the objective light diffracted by the concave grating (16). The slit unit is a multi-slit member (14) with a plurality of slits (14a). The objective light (2) diffracted by the concave grating (16) and directed toward the detector unit is moved by the movement of the multi-slit member (14).
Abstract:
A spectrometer (10) provides a substantially simultaneous electronic output over a broad spectral range while maintaining a relatively high resolution. The spectrometer (10) uses a fiber-optic transformer (14) having an arcuate one-dimensional input region, associated with the image plane (26) of a Rowland circle (25), and produces a rectangular two-dimensional output image, for illuminating the active area of a two-dimensional CCD sensor (38).
Abstract:
PROBLEM TO BE SOLVED: To provide a spectral color sensor which has little detection color difference in relation to chromaticity of a specimen by decreasing generation of mixed colors by high order diffraction light of short wavelengths and by acquiring precise spectral information in an entire evaluation wavelength band considering the optical efficiency of an entire optical system. SOLUTION: In a concave reflective spectral element used for a Rowland type spectrometer, when a range of wavelengths detected by the Rowland type spectrometer is above λ1 and below λ2 (λ1 r is satisfied, wherein the bus radius of curvature is R and the sagittal radius of curvature is r. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To acquire a spectroscopic device which effectively reduces incidence upon a light detection unit of stray light reflected by surfaces other than a diffraction surface, and is capable of detecting light dispersed by the diffraction surface with high accuracy. SOLUTION: In the spectroscopic device with a concave reflection-type diffraction element, non-diffraction surfaces being on the same side as the diffraction surface of the diffraction element and located outside the diffraction surface are glossy, among surfaces other than the diffraction surface, and the device includes a light detection unit at a position corresponding to an imaging position of first-order diffracted light diffracted by the diffraction element to receive the first-order diffracted light. The light detection unit is disposed inside optical paths of light beams reflected regularly by the non-diffraction surfaces outside the diffraction surface. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a spectroscope capable of conducting high-precision spectroscopy. SOLUTION: The spectroscope comprises a concave diffraction grating 303 for dispersing incident light; an incident light-introducing means 301 for introducing the incident light to the concave diffraction grating 303; and an emission light receiving means 305 for receiving emission light, dispersed by each wavelength by the concave diffraction grating 303. The spectroscope further comprises an incident opening 302 for limiting the light, emitted by the incident light-introducing means 301 to the concave diffraction grating 303; and an emission opening 304 for limiting the emission angle of the emission light dispersed by the concave diffraction grating 303 by each wavelength, to the emission light-receiving means 305. At least two among the concave diffraction grating 303, the incident opening 302, or the emitting opening 304 are constructed so as to relatively rotate, and move along a Rowland circle formed by the concave diffraction grating 303. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
Die Erfindung betrifft ein verbessertes Spektrometer für die optische Emissionsspektrometrie mit einer Strahlung aussendenden Quelle (11), einem Eintrittsspalt (2), einem Gitter (1), einem Langpassfilter (10), und Detektoren (3, 4, 5, 6), wobei im Betrieb die Strahlung von dem Eintrittsspalt (2) unter einem ersten Einfallswinkel (α1) gegen die Gitternormale (N) auf das Gitter (1) fällt. Das Spektrometer ist dadurch gekennzeichnet, dass - ein erster Spiegel an einer Stelle vorgesehen ist, an der die in nullter Ordnung an dem Gitter reflektierte Strahlung auf den ersten Spiegel fällt, - ein zweiter Spiegel an einer Stelle vorgesehen ist, an der die in nullter Ordnung an dem Gitter reflektierte Strahlung von dem ersten Spiegel auf den zweiten Spiegel fällt, wobei der zweite Spiegel so ausgerichtet ist, dass die an dem zweiten Spiegel reflektierte Strahlung unter einem zweiten Einfallswinkel (α2) auf das Gitter fällt, - wenigstens eine Blende (9) vorgesehen ist, die in den optischen Pfad zwischen dem Gitter, dem ersten Spiegel, dem zweiten Spiegel und dem Gitter zur wahlweisen Unterbrechung dieses Pfades einschaltbar ist, und dass - Mitteln zum Steuern vorgesehen sind, die das Spektrometer steuern, sodass entweder die Blende oder das Filter eingeschaltet sind.