GB191315475A - Improvements in and relating to Instruments for Colour-measuring, Colour-matching, Colour Recording and Colour Harmonising, for Photometry and for Testing Colour-blindness, and like Instruments. - Google Patents
Improvements in and relating to Instruments for Colour-measuring, Colour-matching, Colour Recording and Colour Harmonising, for Photometry and for Testing Colour-blindness, and like Instruments.Info
- Publication number
- GB191315475A GB191315475A GB191315475DA GB191315475A GB 191315475 A GB191315475 A GB 191315475A GB 191315475D A GB191315475D A GB 191315475DA GB 191315475 A GB191315475 A GB 191315475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- compartment
- testing
- instruments
- prism
- 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
- 208000036693 Color-vision disease Diseases 0.000 title abstract 2
- 201000007254 color blindness Diseases 0.000 title abstract 2
- 238000005375 photometry Methods 0.000 title abstract 2
- 239000003086 colorant Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 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
-
- 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
Abstract
15,475. Wearham, J. July 4. Colours, comparing; comparison photometers; sight-testing apparatus.-An apparatus chiefly intended for colour-matching purposes comprises a casing 1 divided into compartments 4, 5. The compartment 4 contains a lens 10 and, in proximity thereto a number, preferablv three, of colour screens 13, 14, 15 which can be withdrawn to any desired extent by knobs 16, 17, 18, and carry pointers 20 moving over scales 19. At the base of the compartment 4 is a tray 11 which has a white surface and can be withdrawn by the knob 12. Within the compartment 5 is a lens 28 and a screen 25 with scale 26 and pointer 27, and at the base of this compartment is a tray on which is placed the colour to be matched. Light enters the compartments 4, 5 by apertures 7, 8, and the two trays are viewed through an opening 30 in a casing 2. To bring the two images into juxtaposition, the device shown in Fig. 5 is employed; this consists of two prisms 31, 32, the prism 31 being slightly in advance of the prism 32 and having its edge 33 slightly overlapping the edge 34 of the prism 32. When the colour to be matched is not uniform, a lens 37 may be placed in front of the prisms 31, 32. In a modification, the colour screens in the compartment 4 are arranged laterally with regard to one another and an opaque shutter is employed in conjunction with them so that white light may be admitted. For testing the colour of a solution, the solution is placed over the aperture 8, a white surface being in this case employed at the base of the compartment 5. The apparatus may be used for photometry by placing a white screen at a suitable angle over each of the apertures 7, 8 and allowing the light from the sources to be compared to fall on the screens. The apparatus may also be used for testing for colour blindness.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191315475T | 1913-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191315475A true GB191315475A (en) | 1914-07-02 |
Family
ID=32645558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191315475D Expired GB191315475A (en) | 1913-07-04 | 1913-07-04 | Improvements in and relating to Instruments for Colour-measuring, Colour-matching, Colour Recording and Colour Harmonising, for Photometry and for Testing Colour-blindness, and like Instruments. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191315475A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758501A (en) * | 1951-03-16 | 1956-08-14 | Kallmeyer Erich | Colorimeter for different medical inverstigations |
| US3090993A (en) * | 1959-08-26 | 1963-05-28 | Standard Oil Co | Comparison instrument |
| CN106199954A (en) * | 2016-08-30 | 2016-12-07 | 喻阳 | A kind of Optical devices correcting the blue weak achromatopsia of yellow and method for designing thereof |
-
1913
- 1913-07-04 GB GB191315475D patent/GB191315475A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758501A (en) * | 1951-03-16 | 1956-08-14 | Kallmeyer Erich | Colorimeter for different medical inverstigations |
| US3090993A (en) * | 1959-08-26 | 1963-05-28 | Standard Oil Co | Comparison instrument |
| CN106199954A (en) * | 2016-08-30 | 2016-12-07 | 喻阳 | A kind of Optical devices correcting the blue weak achromatopsia of yellow and method for designing thereof |
| CN106199954B (en) * | 2016-08-30 | 2019-03-22 | 陈晓冬 | A kind of Optical devices and its design method for correcting the weak colour blindness of blue yellow |
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