Abstract:
PROBLEM TO BE SOLVED: To overcome any difficulty in attainment of a tunable diode laser absorption spectroscopy (TDLAS).SOLUTION: A multiplexer 16 optically-connected with outputs of two or more diode lasers 12 having selected laser oscillating frequencies is optically-connected with an optical fiber on pitch side. A multiplexed laser beam is transmitted to a pitch optical component 20 associated with a process chamber 22 through the pitch side optical fiber. The pitch optical component 20 is oriented so as to radiate a multiplexed laser output through inside the process chamber. A catch optical component 24 receives the radiated multiplexed laser output. The catch optical component 24 is optically-connected with an optical fiber transmitting the multiplexed laser output to a demultiplexer 28. The demultiplexer 28 demultiplexes a laser beam to optically-connect the selected laser oscillating frequency of the laser beam with a detector 25. This detector has sensitivity to one of the selected laser oscillating frequencies.
Abstract:
PROBLEM TO BE SOLVED: To provide a light receiving optical system capable of controlling an amount of light in response to a viewing angle change by being hardly influenced on reproduction errors due to optical system movement for changing a viewing angle. SOLUTION: An objective optical system, a viewing angle restricting opening body, and a relay optical system for condensing light to be measured condensed on an imaging face of the objective optical system in a viewing angle restricting aperture to be incident on the viewing angle restricting aperture are provided. The light receiving optical system has: the relay optical system composed to selectively arrange a relay lens at any one position of first and second conjugate positions; a first light flux restricting aperture body having a first light flux restricting aperture arranged proximally on the relay lens at the first conjugate position; and a second light flux restricting aperture body having a second light flux restricting aperture arranged proximally on the relay lens at the second conjugate position. The light receiving optical system restricts an incident light flux to the viewing angle restricting aperture at the first and second conjugate positions by the first and second light flux restricting apertures by forming a magnified image of the viewing angle restricting aperture when arranging the relay lens at the first conjugate position, and forming a reduced image of the viewing angle restricting aperture on the imaging face of the objective optical system when arranging the relay lens at the second conjugate position. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorometric probe capable of receiving stably fluorescence generated from a sample irradiated with an exciting light at the luminous energy which maximizes photoreception luminous energy. SOLUTION: This fluorometric probe has an optical fiber with the optical path of the fluorescence being identical to the optical path of the exciting light, and a lens arranged between an end part cross section of the optical fiber and the sample, an exciting light beam NA is set as sin θ is 0.14 or larger to 0.31 or smaller, a fiber core diameter is 200 μm or larger, and a fiber NA is 0.22 or larger, where θ represents the irradiation angle of the exciting light in a convergence position of the exciting light, when the exciting light emitted from the optical fiber and irradiated is received via the lens and when fluorescence generated from the sample is condensed via the lens. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve a color measuring head and a scanner device including it to make them suitable for performing very accurate measurement. SOLUTION: The scanner device includes: a support surface for a measured object; a drive unit for moving a color measuring head over the support surface in at least one dimension thereof and for adjusting the height of a color measuring head in the direction perpendicular to the support surface; and a measuring and drive control unit for activating the drive unit and co-operating with the color measuring head MH. The color measuring head MH has at least an illuminating channel IC and a collection channel CC. The illuminating channel IC has a light source 10 and optical means 12-22 for illuminating a measured object S at a measurement site at a mean angle of incidence of 45E. The collection channel CC has optical means 24-34 for capturing the light emanating from the measured object at the measurement site at a mean collection angle of OE and coupling it into a light guide LF. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical fiber incidence type spectroscope which divides a signal light beam made incident through an optical fiber by a spectral element, without deteriorating sensitivity and reduces the complexity in correction in a spectral apparatus. SOLUTION: The fiber injection spectroscope comprises the optical fiber 218, a collimating optical system 231 which makes the signal light beam from the optical fiber 218 into a collimated light beam, the spectral element 236 which divides the signal light beam converted into the collimated light beam by the collimating optical system 231, a light-receiving element 237 in which a plurality of light-receiving elements 237a for receiving the signal light beam divided by the spectral element 236 are arranged, in at least a wavelength dispersion direction, and a condensing optical system 236, which allows the signal light beam from the spectral element 237 to be focused onto a light-receiving face of the light-receiving element 237. The condensing optical system 236 is configured so that the spot diameter of the signal light beam, focused onto the light-receiving face of the light-receiving element 237, is smaller than the arrangement pitch of the light-receiving element 237. The numerical aperture of the collimating optical system 231 is set to be larger than that of the optical fiber 218. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PURPOSE:To minimize long cycle of noise by introducing only a transmitted light near the center of a sample container into a spectroscope through a reduced image thereof formed at an incidence slit with a wide irradiation thereof in a magnified image of a filament of a light source. CONSTITUTION:A tungsten lamp 1 has a longitudinal filament 8. A white light generated from the filament 8 enters a lens 2 to be condensed at the center of a test tube 3. An image of the filament 8 forms magnified at the center of the test tube 3. A light flux enters an incidence slit 5 in the range corresponding to the center of the test tube 3. The white light entering through the incidence slit 5 reflects at a convex grating 6 while diffracting whereby a spectrum is provided in a photodetector 7.