Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Franc Grum"'
Autor:
Mark D. Fairchild, Franc Grum
Publikováno v:
Applied optics. 24(21)
Etude des proprietes de thermochromisme des tuiles du BCRA (British Ceramic Research Association). Ces tuiles sont utilisees comme etalons en colorimetrie et spectrophotometrie
Autor:
Franc Grum, T. E. Wightman
Publikováno v:
Applied optics. 16(11)
Autor:
Franc Grum, Lorenzo Federico Costa
Publikováno v:
Applied optics. 15(1)
Corona-discharge devices are commonly used in a variety of research and development applications. They are known to produce a considerable amount of electromagnetic radiation, mainly in the uv region of the spectrum. The mechanism involved is presume
Autor:
R Peden, Franc Grum
Publikováno v:
Applied optics. 9(9)
Most applications of modern spectrophotometry demand that spectrophotometric measurements be recorded on media suitable for direct use by data processing equipment. This paper describes a photomechanical method for actuating the readout command for a
Publikováno v:
Applied optics. 8(6)
Most instruments intended for luminescence spectroscopy fall in the category of uncorrected spectrofluorimeters. In many routine analyses, uncorrected spectra are useful, especially if they do not have to be compared with others from different labora
Publikováno v:
Color Research & Application. 3:17-21
The concept of color temperature has been used for many years to characterize the relative spectral distribution of energy from light sources. Since not all sources of light are blackbody radiators, the term “correlated color temperature” was dev
Autor:
T. E. Wightman, Franc Grum
Publikováno v:
Color Research & Application. 6:139-142
Materials having a very low reflectance over a large spectral region are necessary for many scientific application, especially in aerospace, spectrophotometry, spectroradiometry, and photography. This article surveys black absorbing materials and dev
Publikováno v:
Color Research & Application. 3:141-145
This paper documents studies of the Subcommittee for Problem 18, Colorimetry of Fluorescent Materials, of the Inter-Society Color Council. Visual judgments were made of the relative whiteness of fluorescent white papers, plastics, and textiles. The d
Autor:
T. E. Wightman, Franc Grum
Publikováno v:
Color Research & Application. 8:40-42
This article describes the techniques for measuring specular (regular) reflectance of mirrors on an absolute basis. Two independent methods of measuring mirrors are described, and data are presented for the two methods of measurement in the range 400
Autor:
Franc Grum, S. B. Saunders
Publikováno v:
Color Research & Application. 2:121-123
Luminance factor of a diffusing material is defined as the ratio of the luminance of the surface of the material to that of a perfect (Lambertian) diffuser under specified conditions of illuminance and angle of view. Measurement of this quantity has