FR791967A - Comparateur pour déterminer des différences de couleurs et nuances - Google Patents
Comparateur pour déterminer des différences de couleurs et nuancesInfo
- Publication number
- FR791967A FR791967A FR791967DA FR791967A FR 791967 A FR791967 A FR 791967A FR 791967D A FR791967D A FR 791967DA FR 791967 A FR791967 A FR 791967A
- Authority
- FR
- France
- Prior art keywords
- shades
- comparator
- colors
- determine differences
- differences
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003086 colorant Substances 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J2003/466—Coded colour; Recognition of predetermined colour; Determining proximity to predetermined colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/463—Colour matching
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectrometry And Color Measurement (AREA)
- Polarising Elements (AREA)
- Coloring (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US657916A US2015675A (en) | 1933-02-21 | 1933-02-21 | Color and shade comparator |
Publications (1)
Publication Number | Publication Date |
---|---|
FR791967A true FR791967A (fr) | 1935-12-20 |
Family
ID=10060633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR791967D Expired FR791967A (fr) | 1933-02-21 | 1935-07-02 | Comparateur pour déterminer des différences de couleurs et nuances |
Country Status (3)
Country | Link |
---|---|
US (1) | US2015675A (fr) |
FR (1) | FR791967A (fr) |
GB (1) | GB448963A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2740899A (en) * | 1956-04-03 | cummings | ||
US2999934A (en) * | 1939-11-29 | 1961-09-12 | Laurens A Taylor | Radiation detector apparatus |
US2999933A (en) * | 1939-11-29 | 1961-09-12 | Charles F Green | Radiation responsive means |
US2462823A (en) * | 1945-05-31 | 1949-02-22 | Weston Electrical Instr Corp | Photoelectric cell color temperature measuring device |
US2477208A (en) * | 1946-05-03 | 1949-07-26 | Rouy Auguste Louis Mar Antoine | Colorimeter |
US2546450A (en) * | 1949-02-23 | 1951-03-27 | Henry A Gardner Lab Inc | Photometric comparator instrument |
US2574264A (en) * | 1949-03-04 | 1951-11-06 | Henry A Gardner Lab Inc | Color and color difference meter |
US2633772A (en) * | 1949-08-20 | 1953-04-07 | Seagram & Sons Inc | Method and apparatus for detecting foreign bodies in containers |
US2528513A (en) * | 1949-10-21 | 1950-11-07 | Walter F Grether | Self-administering color vision test |
US2630735A (en) * | 1949-11-08 | 1953-03-10 | Rouy Auguste Louis Mar Antoine | Colorimeter |
US2991688A (en) * | 1958-05-16 | 1961-07-11 | Milton Roy Co | Optical comparator unit |
-
1933
- 1933-02-21 US US657916A patent/US2015675A/en not_active Expired - Lifetime
-
1935
- 1935-05-28 GB GB15523/35A patent/GB448963A/en not_active Expired
- 1935-07-02 FR FR791967D patent/FR791967A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2015675A (en) | 1935-10-01 |
GB448963A (en) | 1936-06-18 |
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