Reflected color

INHERENT CONTRAST SPECTRAL REFLECTANCE (COLOR),SIZE.SHAPE, DISTANCE, PATTERN, HORIZON,... 

Aufsichtsfarbet /. reflected color, surface color, aufsieden, 9.2. boil boil again boil out blanch (silver). — v.i. boil up. 

Psychophysical Methods for Measurement and Designation of Reflectance Color in Foods... 

The requirements for an instrumental method of specifying reflected color include a light source, the colored object and a detector. What this means is that all we need is a source, an object and a detector. However, since the response characteristics of these optical components are not linear, nor flat, we need an analogue system in order to be able to measure color. 

However, these analogues are actually hypothetical. The reason for this is that it is nearly impossible to obtain optical measurement components, such as the source and the detector, whose response to light across the visible spectrum is flat (or nearly so). However, this is not an impossible task and we find that an excellent match can be obtained to the transmission functions of 7.8.21., i.e.-those of the Standard Observer. This is typical for commercially available instruments. Now, we have an instrument, called a Colorimeter, capable of measuring reflective color. 

We find that an excellent match can be obtained to the transmission functions of 7.8.20. This is typical for commercially available instruments. Now, we have ein instrument, called a Colorimeter, capable of measuring reflective color. 

One of the first attempts to specify reflective colors and color mixing wcis accomplished by MunseU (1903). He devised a color sj tem based on factors he... 

The majority of the materials we use and handle every day are solid. We take advantage of their physical properties in manifold ways. The properties are intimately related to the structures. In the following we will deal only briefly with a few properties that are directly connected with some structural aspects. Many other properties such as electrical and thermal conductivity, optical transparency and reflectivity, color, luminescence etc. require the discussion of sophisticated theories that are beyond the scope of this book. 

Special consideration of thermal relief for piping exposure to sunlight (solar radiation) needs to be under taken. This is usually accomplished by painting with reflective paint or burial. Hydrocarbon containing piping is usually painted in a reflective color (i.e., aluminum) for advantages of reflection of solar radiation (heat input) to avoid thermal expansion of fluids in blocked systems. 

Are containers painted white or other light-reflecting colors and maintained in good condition ... 

Reflected color testing results at 22 and 40°C for selected copolymers photolytically and thermally are provided in Tables 1 and 2, respectively. 

TABLE 1. Reflected Colors of Selected Copolymer Films at Varying Compositions at 22 and 44°C"... 

Fig. 10 (a, b) Schematic mechanism demonstrated for a reflective color M-paper with magnetically controllable characteristics, (c, d) The intensity of magnetic field dependence on the reflection spectra of chiral nematic mixtures doped with magnetite nanoparticles that are surface modified with oleic acid and a chiral pyridine-based dopant, as well as photographs of both formulations before and after a magnetic field of 1,000 GS was applied (see photograph insets above) [364], (Copyright 2010, Taylor Francis)... 

In developing color constancy algorithms, there are basically two roads to follow (Finlayson et al. 1994a). One is the accurate estimation of reflectances. This is of particular importance for object recognition. Object recognition becomes much easier if the reflectances are known. Another possibility would be to compute colors as they would appear under a canonical, e.g. white, illuminant. These are two different objectives and both are justified in their own right. In the first case (computation of reflectances), color... 

The value of a hue changes as a solution is diluted because, in a constant volume, the number of colored particles (ions) is reduced. There are fewer ions to reflect colored light waves. In this demonstration, the number of... 

Fig. 13a Salt addition effect on the selective light-reflection phenomenon of aqueous HPC liquid crystals b variation in the cholesteric reflection color with time, observed for an HPC/Lil/water system under the action of an electric field E = 4.5 V/15 mm. HPC cone., 62.5 wt% salt concentration, 0.5 M temp., 20 °C...

As an additional remark, the same research group designed a cholesteric network that acted as a humidity sensor, using a derivative of HPC esterified with acryloyl chloride to a low degree of substitution (0.22). The HPC acrylate hydrogel can change the cholesteric pitch, and thereby the reflective color changes with water uptake. 

Hence, the absorption energy of quantum dots will shift to higher frequency with decreasing diameter of the dots, with a dependence ofl/R. This is readily observed from the reflected colors of quantum dots with varying diameters, shifting from blue to red with increasing size (Figure 6.9). 

Fabric Color Change The color of the aged samples was assessed with a General Electric Recording Spectrophotometer which measures tristimulus values X, Y and Z and reflectance. Color difference ae in NBS units (AN 40 units) was calculated using the Adams-Nickerson color difference formula (H) ... 

---