Bayer pattern

A CMOS photodiode is sensitive to all visible wavelengths of light. To construct an array of pixels with channels sensitive to individual primary colors (e.g., red, green, and blue), a filter is placed above each pixel, creating a color filter array (CFA) mosaic. Photons outside of each filter s passband are absorbed, and by adjusting the thickness of the filters, the selectivity can be modified. There are a variety of different CFA patterns, the most popular being the Bayer pattern, which is shown in the photomicrograph of Fig. 7. 

Malvar, H, He, L., CuIIct, R. High-Quality Linear Interpolation for Demosaicing of Bayer-Patterned Color Images, 485 pp. (2004)... 

Figure 10.9 The reaction pattern for epoxy-polyurethane modifications. Source Wellner, W., Gruber, H. and Ruttmann, G., New solvent free epoxy/polyurethane combinations, publication E 908-8122/850640 published by Bayer AG, Plastics and Coatings Division, D-5090, Leverkusen...

Bayer S A. Glial recovery patterns in rat corpus coUosum after x-irradiation during infancy. ExpNeurol 1977 54 209-216. 

Bayer SA, Altman J, Rosso RJ, Zhang X (1993) Timetables of neurogenesis in the human brain based on experimentally determined patterns in the rat. Neurotoxicology 14 83-144. 

Combining a high-temperature X-ray camera with a thermobalance is difficult due to geometrical and focus problems. However, Wiedemann and Bayer (61) have described such a technique in which high-temperature X-ray diffraction patterns and information about its mass-loss can be obtained on a single sample. This new technique, which they called thermomolecular beam analysis (TMBA), is illustrated schematically in Figure 3.35. The... 

John J. Beer recounts that, in the case of the Bayer Gompany, the hiring of university-trained personnel took place in the decade between 1874—1884. This was done not because managers wanted to introduce a pattern of systematic innovation—that point had not dawned yet upon them—but rather to try and improve the traditional production process (118), In fact, the chemists hired by Bayer were integrated within the chemical works on the basis of what could be learned from the intro-... 

Bayer introduced 2-aryl-l,2,4-triazine-3,5-diones with the 2,4-dihalo-5-aminoalkylsulfonylphenyl, such as 102 [109] and 103 [110] the aromatic substitution pattern is reminiscent of sulfentrazone (15). 

The special role of the substitution pattern has been demonstrated in the case of the oxyacetamide flufenacet (11 1998, Axiom , Bayer CropScience) [56], a selective inhibitor of cell growth and cell division (Fig. 35.6) (for more details see Chapter 8). 

Erdmenger, R. Mixing and kneading machine US2670188. U.S. Pattern Organization, Farbenfabriken Bayer, 1954, p. 6. 

Excerpts of five such reports are given here, reproduced with permission, from Bayer, Air Products and Chemicals, Intel, Johnson Johnson, and DuPont. In those reports, a pattern is evident that represents the absolutes necessary to attain superior safety results ... 

All this work was novel, but did not answer the question concerning the structure of indigo. As we shall see, with oxindole, Bayer had chosen the wrong substitution pattern. 

So, too, the dyestuff maker, Farbwerke vorm. Meister Lucius Briining (Hoechst) found in America a loyal agent, who in time became very much part of the Hoechst "family." At first, Hoechst used independent agents, one of which had in 1882 employed the 15-year old American-born Herman Metz. From the 1880s until his death in 1934, Metz was associated with Hoechst and then LG. Farben—a half century relationship. And with Hoechst, as with Bayer and Badische, there was the same pattern, first Hoechst used independent agents and then owned sales outlets. Metz s letterhead in 1914 showed him to be president of Farbwerke Hoechst Company, New York, with branches in Boston, Philadelphia, Providence, Chicago, Charlotte, Atlanta, San Francisco, and Newark. In Newark, Hoechst had a small factory, that represented roughly 2 to 3 percent of U.S. dyestuff production. ... 

---