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G01J 1/00
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Photometry, e.g. photographic exposure meter |
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G01J 1/02
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Photometry, e.g. photographic exposure meter Details |
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G01J 1/04
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Optical or mechanical part |
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G01J 1/06
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Restricting the angle of incident light |
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G01J 1/08
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Arrangements of light sources specially adapted for photometry |
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G01J 1/10
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value |
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G01J 1/12
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using wholly visual means |
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G01J 1/14
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using wholly visual means using comparison with a surface of graded brightness |
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G01J 1/16
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using electric radiation detectors |
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G01J 1/18
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using electric radiation detectors using comparison with a reference electric value |
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G01J 1/20
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle |
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G01J 1/22
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means |
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G01J 1/24
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors |
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G01J 1/26
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors adapted for automatic variation of the measured or reference value |
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G01J 1/28
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using variation of intensity or distance of source |
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G01J 1/30
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors |
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G01J 1/32
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value |
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G01J 1/34
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using separate light-paths used alternately or sequentially, e.g. flicker |
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G01J 1/36
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Photometry, e.g. photographic exposure meter by comparison with reference light or electric value intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle using separate light-paths used alternately or sequentially, e.g. flicker using electric radiation detectors |
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G01J 1/38
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Photometry, e.g. photographic exposure meter using wholly visual means |
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G01J 1/40
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Photometry, e.g. photographic exposure meter using wholly visual means using limit of visibility or extinction effect |
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G01J 1/42
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Photometry, e.g. photographic exposure meter using electric radiation detectors |
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G01J 1/44
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Electric circuits |
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G01J 1/46
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Electric circuits using a capacitor |
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G01J 1/48
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Photometry, e.g. photographic exposure meter using chemical effects |
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G01J 1/50
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Photometry, e.g. photographic exposure meter using chemical effects using change in colour of an indicator, e.g. actinometer |
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G01J 1/52
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Photometry, e.g. photographic exposure meter using chemical effects using photographic effects |
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G01J 1/54
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Photometry, e.g. photographic exposure meter using chemical effects by observing photo-reactions between gases |
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G01J 1/56
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Photometry, e.g. photographic exposure meter using radiation pressure or radiometer effect |
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G01J 1/58
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Photometry, e.g. photographic exposure meter using luminescence generated by light |
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G01J 1/60
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Photometry, e.g. photographic exposure meter by measuring the pupil of the eye |
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G01J 3/00
|
SpectrometrySpectrophotometryMonochromatorsMeasuring colours |
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G01J 3/02
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SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details |
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G01J 3/04
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Slit arrangements |
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G01J 3/06
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Scanning arrangements |
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G01J 3/08
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Beam-switching arrangements |
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G01J 3/10
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Arrangements of light sources specially adapted for spectrometry or colorimetry |
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G01J 3/12
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Generating the spectrumMonochromators |
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G01J 3/14
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Generating the spectrumMonochromators using refracting elements, e.g. prism |
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G01J 3/16
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Generating the spectrumMonochromators using refracting elements, e.g. prism with autocollimation |
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G01J 3/18
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Generating the spectrumMonochromators using diffraction elements, e.g. grating |
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G01J 3/20
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Rowland circle spectrometers |
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G01J 3/22
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Littrow mirror spectrometers |
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G01J 3/24
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Generating the spectrumMonochromators using diffraction elements, e.g. grating using gratings profiled to favour a specific order |
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G01J 3/26
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Generating the spectrumMonochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filter |
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G01J 3/28
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Investigating the spectrum |
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G01J 3/30
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Measuring the intensity of spectral lines directly on the spectrum itself |
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G01J 3/32
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Investigating bands of a spectrum in sequence by a single detector |
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G01J 3/36
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Investigating two or more bands of a spectrum by separate detectors |
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G01J 3/40
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Measuring the intensity of spectral lines by determining density of a photograph of the spectrumSpectrography |
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G01J 3/42
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Absorption spectrometryDouble-beam spectrometryFlicker spectrometryReflection spectrometry |
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G01J 3/44
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Raman spectrometryScattering spectrometry |
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G01J 3/45
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Interferometric spectrometry |
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G01J 3/46
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Measurement of colourColour measuring devices, e.g. colorimeters |
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G01J 3/50
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Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors |
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G01J 3/51
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Measurement of colourColour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters |
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G01J 3/52
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Measurement of colourColour measuring devices, e.g. colorimeters using colour charts |
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G01J 3/427
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Dual wavelength spectrometry |
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G01J 3/433
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Modulation spectrometryDerivative spectrometry |
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G01J 3/443
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Emission spectrometry |
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G01J 3/447
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Polarisation spectrometry |
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G01J 3/453
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Interferometric spectrometry by correlation of the amplitudes |
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G01J 3/457
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Correlation spectrometry, e.g. of the intensity |
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G01J 4/00
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Measuring polarisation of light |
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G01J 4/02
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Polarimeters of separated-field typePolarimeters of half-shadow type |
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G01J 4/04
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Polarimeters using electric detection means |
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G01J 5/00
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Radiation pyrometry, e.g. infrared or optical thermometry |
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G01J 5/02
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Constructional details |
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G01J 5/03
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Arrangements for indicating or recording specially adapted for radiation pyrometers |
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G01J 5/04
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Casings |
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G01J 5/05
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Means for preventing contamination of the components of the optical systemMeans for preventing obstruction of the radiation path |
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G01J 5/06
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Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity |
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G01J 5/07
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Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position |
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G01J 5/08
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Optical arrangements |
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G01J 5/10
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Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors |
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G01J 5/12
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Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples |
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G01J 5/14
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Electrical features thereof |
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G01J 5/16
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Arrangements with respect to the cold junctionCompensating influence of ambient temperature or other variables |
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G01J 5/18
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Special adaptation for indicating or recording |
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G01J 5/20
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Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices |
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G01J 5/22
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Electrical features thereof |
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G01J 5/24
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Use of specially adapted circuits, e.g. bridge circuits |
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G01J 5/26
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Special adaptation for indicating or recording |
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G01J 5/28
|
Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using photoemissive or photovoltaic cells |
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G01J 5/30
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Electrical features thereof |
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G01J 5/32
|
Special adaptation for indicating or recording |
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G01J 5/34
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Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors |
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G01J 5/35
|
Electrical features thereof |
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G01J 5/36
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Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using ionisation of gases |
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G01J 5/38
|
Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids |
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G01J 5/40
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Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids using bimaterial elements |
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G01J 5/42
|
Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids using Golay cells |
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G01J 5/44
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Radiation pyrometry, e.g. infrared or optical thermometry using extension or expansion of solids or fluids using change of resonant frequency, e.g. of piezoelectric crystals |
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G01J 5/46
|
Radiation pyrometry, e.g. infrared or optical thermometry using radiation pressure or radiometer effect |
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G01J 5/48
|
ThermographyTechniques using wholly visual means |
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G01J 5/50
|
Radiation pyrometry using techniques specified in the subgroups below |
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G01J 5/52
|
Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer |
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G01J 5/53
|
Reference sources, e.g. standard lampsBlack bodies |
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G01J 5/54
|
Optical arrangements |
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G01J 5/56
|
Electrical features thereof |
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G01J 5/58
|
Radiation pyrometry, e.g. infrared or optical thermometry using absorptionRadiation pyrometry, e.g. infrared or optical thermometry using extinction effect |
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G01J 5/59
|
Radiation pyrometry, e.g. infrared or optical thermometry using polarisationDetails thereof |
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G01J 5/60
|
Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature |
|
G01J 5/061
|
Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats |
|
G01J 5/62
|
Radiation pyrometry using techniques specified in the subgroups below using means for chopping the light |
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G01J 5/068
|
Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity by controlling parameters other than temperature |
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G01J 5/70
|
Passive compensation of pyrometer measurements, e.g. using ambient temperature sensing or sensing of temperature within housing |
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G01J 5/80
|
Calibration |
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G01J 5/90
|
Testing, inspecting or checking operation of radiation pyrometers |
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G01J 5/0801
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Means for wavelength selection or discrimination |
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G01J 5/0802
|
Optical filters |
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G01J 5/0803
|
Arrangements for time-dependent attenuation of radiation signals |
|
G01J 5/0804
|
Shutters |
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G01J 5/0805
|
Means for chopping radiation |
|
G01J 5/0806
|
Focusing or collimating elements, e.g. lenses or concave mirrors |
|
G01J 5/0808
|
Convex mirrors |
|
G01J 5/0813
|
Planar mirrorsParallel phase plates |
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G01J 5/0818
|
Waveguides |
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G01J 5/0821
|
Optical fibres |
|
G01J 5/0831
|
MasksAperture platesSpatial light modulators |
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G01J 5/0875
|
WindowsArrangements for fastening thereof |
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G01J 7/00
|
Measuring velocity of light |
|
G01J 9/00
|
Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength |
|
G01J 9/02
|
Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength by interferometric methods |
|
G01J 9/04
|
Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength by beating two waves of the same source but of different frequency and measuring the phase shift of the lower frequency obtained |
|
G01J 11/00
|
Measuring the characteristics of individual optical pulses or of optical pulse trains |
