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Class Information
Number: 356/308
Name: Optics: measuring and testing > By dispersed light spectroscopy > With synchronized spectrum repetitive scanning (e.g., cathode-ray readout)
Description: Subject matter which includes the periodic scanning of a dispersed light beam over the optical frequency spectrum, detecting the scanned dispersed beam, synchronizing a visual readout with the various wavelengths present in the detected dispersed beams, and correlating the intensity of the detected readout with each wavelength present in the dispersed beam.

Sub-classes under this class:

Class Number Class Name Patents
356/309 Using plural beams 21

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8489359 Surface measurement instrument Jul. 16, 2013
8487979 Signal spectra detection system Jul. 16, 2013
8269965 Method of analysis of samples by determination of a function of specific brightness Sep. 18, 2012
8117010 Spectral signal detection system Feb. 14, 2012
8080777 Optical device and optical system Dec. 20, 2011
8049883 Wavelength tracker for swept wavelength sensor interrogation system Nov. 1, 2011
7923970 Charge controlling circuit Apr. 12, 2011
7533000 Method and apparatus for analysing a dataset of spectra May. 12, 2009
7336357 Multi-channel dual phase lock-in optical spectrometer Feb. 26, 2008
7321425 Sensor and methods for measuring select components in sheetmaking systems Jan. 22, 2008
7253897 Optical spectrum analyzer Aug. 7, 2007
7251028 Scanning spectrum analyzer Jul. 31, 2007
7233394 Compact spectrometer Jun. 19, 2007
7220974 Fluorescence detection apparatus and method for excitation light irradiation timing May. 22, 2007
7209230 Hand-held spectra-reflectometer Apr. 24, 2007
7193705 Method for determining atomic isotope masses Mar. 20, 2007
7034936 Spectrometer Apr. 25, 2006
7002680 Method and apparatus for measuring waveforms and wavelengths of optical signals Feb. 21, 2006
6977724 Method for spectral analysis, and scanning microscope Dec. 20, 2005
6870618 Wavelength characteristic measuring device and method using light having wavelength thereof continuously changed Mar. 22, 2005
6809815 Optical arrangement for selection and detection of the spectral region of a light beam and confocal scanning microscope Oct. 26, 2004
6788408 Wavelength monitoring system Sep. 7, 2004
6721054 Method and apparatus for determining the reflectance of translucent objects Apr. 13, 2004
6633380 Wavelength characteristic measurement apparatus Oct. 14, 2003
6597449 Real time process control of optical components using linearly swept tunable laser Jul. 22, 2003
6587196 Oscillating mechanism driven monochromator Jul. 1, 2003
6549279 Method and apparatus for optical endpoint calibration in CMP Apr. 15, 2003
6512582 Wavelength tracking system using an optical spectrum analyzer and a wavelength tunable light source Jan. 28, 2003
6275289 Monochromator Aug. 14, 2001
6122051 Multi-slit spectrometer Sep. 19, 2000
6118530 Optical scanning spectrometer Sep. 12, 2000
6034767 Monochromator and optical analyzing device using the same Mar. 7, 2000
6031609 Fourier transform spectrometer using a multielement liquid crystal display Feb. 29, 2000
6031608 Spectroscopic instrument with offset grating to improve focus Feb. 29, 2000
5949578 Reflective grating for optical diffraction, and manufacturing methods Sep. 7, 1999
5889588 Random wavelength access monochromator incorporating coaxial off-axis parabolic OAP reflectors Mar. 30, 1999
5864398 Methods and apparatus for isotopic analysis Jan. 26, 1999
5828451 Spectral imaging system and method employing an acousto-optic tunable filter for wavelength selection with increased field of view brightness Oct. 27, 1998
5818580 Simultaneous multisample analysis and apparatus therefor Oct. 6, 1998
5801826 Spectrometric device and method for recognizing atomic and molecular signatures Sep. 1, 1998
5783445 Methods and apparatus for isotopic analysis Jul. 21, 1998
5606413 Real time spectroscopic imaging system and method Feb. 25, 1997
5489980 Apparatus for rapid and accurate analysis of the composition of samples Feb. 6, 1996
5438406 Tunable narrowband spectrometer with acousto-optical tunable filter Aug. 1, 1995
5412469 Optical spectrum analyzer and encoder using a modulated phase grating wherein said grating diffracts the wavelength as a function of the magnetic field May. 2, 1995
5394236 Methods and apparatus for isotopic analysis Feb. 28, 1995
5387992 Optical frequency multiplex carrier control system Feb. 7, 1995
5317379 Chemical species optical analyzer with multiple fiber channels May. 31, 1994
5285254 Rapid-scanning monochromator with moving intermediate slit Feb. 8, 1994
5251006 Automatic spectrophotometer calibration system Oct. 5, 1993

1 2

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