Weaver, 1950 - Google Patents
Measurement of photographic transmission densityWeaver, 1950
View PDF- Document ID
- 15893708304315207159
- Author
- Weaver K
- Publication year
- Publication venue
- Journal of the Optical Society of America
External Links
Snippet
This investigation was carried out in 1943 and 1944 and was undertaken primarily to determine the relation between the sphere and pot-opal types of densitometers, and the factors which affect their reproducibility from specifications, preliminary to the formulation of …
- 238000005259 measurement 0 title abstract description 45
Classifications
-
- 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 infra-red, visible or ultra-violet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
-
- 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 infra-red, visible or ultra-violet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N21/5911—Densitometers of the scanning type
-
- 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 infra-red, visible or ultra-violet 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
-
- 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 infra-red, visible or ultra-violet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
- G01N21/57—Measuring gloss
-
- 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 infra-red, visible or ultra-violet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colour
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02B27/00—Other optical systems; Other optical apparatus
- G02B27/02—Viewing or reading apparatus
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02B5/00—Optical elements other than lenses
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Brice et al. | Photoelectric light-scattering photometer for determining high molecular weights | |
| Cox et al. | Measurement of the roughness of the sea surface from photographs of the sun’s glitter | |
| Webb | The relationship between reciprocity law failure and the intermittency effect in photographic exposure | |
| Taylor | The measurement of diffuse reflection factors and a new absolute reflectometer | |
| Gibson et al. | Calibration and operation of the General Electric recording spectrophotometer of the National Bureau of Standards | |
| Zerlaut et al. | Multiple-integrating sphere spectrophotometer for measuring absolute spectral reflectance and transmittance | |
| Simonot et al. | Halo and subsurface scattering in the transparent coating on top of a diffusing material | |
| Rense | Polarization studies of light diffusely reflected from ground and etched glass surfaces | |
| Shaw et al. | Instrument for the absolute measurement of direct spectral reflectances at normal incidence | |
| Webb | The photographic reciprocity law failure for radiations of different wave-length | |
| Jones et al. | The relationship between the granularity and graininess of developed photographic materials | |
| Jones | The gloss characteristics of photographic papers | |
| Karrer | The use of the Ulbricht sphere in measuring reflection and transmission factors | |
| Weaver | Measurement of photographic transmission density | |
| Taylor | Errors in reflectometry | |
| Jones et al. | The control of photographic printing by measured characteristics of the negative | |
| Wolfe et al. | Determination of the modulation transfer function of photographic emulsions from physical measurements | |
| Kushner | A design for an absolute light-scattering photometer | |
| Taylor | The measurement of reflection-factors in the ultraviolet | |
| Lamberts | The production and use of variable-transmittance sinusoidal test objects | |
| Berg | The photographic emulsion layer as a three-dimensional recording medium | |
| Lowry | An instrument for the measurement of the graininess of photographic materials | |
| Koerner et al. | Experimental determination of photographic density | |
| Kenneth Mees | Photographic plates for use in spectroscopy and astronomy | |
| Slater | A recording goniophotometer |