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Class Information
Number: 356/332
Name: Optics: measuring and testing > By dispersed light spectroscopy > With monochromator structure > Having adjustable color or bandwidth
Description: Subject matter including structure to vary the bandwidth or to vary the average or median frequency of the band over the range of the light emitted from the monochromator.










Sub-classes under this class:

Class Number Class Name Patents
356/333 In a double monochromator 55
356/334 With diffraction grating means 297


Patents under this class:
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Patent Number Title Of Patent Date Issued
8642982 Fast switching arbitrary frequency light source for broadband spectroscopic applications Feb. 4, 2014
8603772 Particle sensor with wide linear range Dec. 10, 2013
7898593 System and method for synchronizing an illuminator to a video camera Mar. 1, 2011
7532326 Multiple-label fluorescence imaging using excitation-emission matrices May. 12, 2009
7411674 Polarizing monochromator Aug. 12, 2008
7365842 Light scanning type confocal microscope Apr. 29, 2008
7319520 Method for separating fluorescence spectra of dyes present in a sample Jan. 15, 2008
7212285 Optical measurement device May. 1, 2007
7170595 Optical slit Jan. 30, 2007
7042567 Imaging method and apparatus for the non-destructive analysis of paintings and monuments May. 9, 2006
6831740 Methodology for improving precision of data acquired by spectrophotometer systems Dec. 14, 2004
6765707 Variable slit width device for spectroscope Jul. 20, 2004
6678044 Monochromator and optical spectrum analyzer equipped with the same Jan. 13, 2004
6633380 Wavelength characteristic measurement apparatus Oct. 14, 2003
6587199 Embedded data acquisition and control system for non-invasive glucose prediction instrument Jul. 1, 2003
6538737 High resolution etalon-grating spectrometer Mar. 25, 2003
6525814 Apparatus and method for producing a spectrally variable radiation source and systems including same Feb. 25, 2003
6512582 Wavelength tracking system using an optical spectrum analyzer and a wavelength tunable light source Jan. 28, 2003
6507399 Device for adjusting angular play Jan. 14, 2003
6275289 Monochromator Aug. 14, 2001
5986758 Diffractive optic image spectrometer (DOIS) Nov. 16, 1999
5923420 Optical spectrum calculating method Jul. 13, 1999
5699156 Spectrophotometer apparatus with dual light sources and optical paths, fiber optic pick-up and sample cell therefor Dec. 16, 1997
5661589 Bilateral slit assembly, and method of use Aug. 26, 1997
5625270 Scanning monochromator with directly driven spectral-dispersion element Apr. 29, 1997
5624709 High resolution differential spectrometry system Apr. 29, 1997
5448351 Echelle polychromator Sep. 5, 1995
5305083 Random access monochromator Apr. 19, 1994
4930891 Method and apparatus for scanning wavelength in spectrophotometers Jun. 5, 1990
4916645 Continuous monochrometer drift compensation of a spectral monochromator Apr. 10, 1990
4909626 Electrically-controllable thin film Fresnel zone device Mar. 20, 1990
4879460 Gyroslabilized optical radiation deflection device providing a stabilized radiation sensitivity lobe Nov. 7, 1989
4856898 Adjustable echelle spectrometer arrangement and method for its adjustment Aug. 15, 1989
4810089 Photoelastic effect measuring device Mar. 7, 1989
4742222 Selective optical detector apparatus utilizing longitudinal chromatic aberration May. 3, 1988
4705396 Image monochromator Nov. 10, 1987
4690559 Optical system for spectral analysis devices Sep. 1, 1987
4669880 Apparatus for converting the wavelength resolution of a spectrophotometer Jun. 2, 1987
4668092 Wavelength driving device for monochromators May. 26, 1987
4660975 Controlling light beam spectrum Apr. 28, 1987
4652761 Grating ozone spectrophotometer Mar. 24, 1987
4519706 Spectrophotometer having wavelength selecting structure May. 28, 1985
4396288 Control of multi-position filter mechanism in an optical measuring system Aug. 2, 1983
4352561 Calibrating apparatus in a monochromator Oct. 5, 1982
4342516 Filter indexing for spectrophotometer system Aug. 3, 1982
4325634 Slit width calibrator for monochromator Apr. 20, 1982
4318616 Manual wavelength adjustment for a microprocessor based spectrophotometer Mar. 9, 1982
4245908 Apparatus for controlling and monitoring the dispersive element and recording instrument in spectrometric apparatus Jan. 20, 1981
4211486 Spectrophotometer Jul. 8, 1980
4203669 Wavelength reading apparatus for monochromator May. 20, 1980

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