Crystals lenticular

Similar to the switchable parallax barrier, a switchable liquid crystal lenticular lens array could be used for 2-D/3-D switchable displays. 

Fig. 21 Transmission electron micrograph of permanganic-etched linear polyethylene (Mn= 17,000 g mol-1, Mw=54,000 g mor1) crystallised at 130 °C for 13 h showing a lenticular crystal lamella. Courtesy of D.C. Bassett. From [54] with permission from Elsevier, UK...

Fig. 10 Four common types of crystal habit in polyethylene and long alkanes (a) rhombic lozenge bounded by 110 facets (b) lozenge truncated by curved 100 faces (Toda s type B) (c) leaf-shaped crystal bounded solely by curved 100 faces (step propagation rate v equals h = Gno/sin(

Fig. 30 Left-. An a-axis lenticular crystal of Ci62H326 in 1-phenyldecane grown from an initially 1.0% solution at 99.5 °C. Interference optical micrograph bar length 10 pm. Right Schematic outline of the crystal, indicating the four 110 sectors (from [52] with permission of the American Chemical Society)...

In aromatic solvents the step propagation rate v seems to be disproportionately more suppressed on both 100 and 110 faces compared to the nucleation rate i. This results in a-axis lenticular crystals (Fig. 28) and in nearly circular crystals with curvature on both 110 and 100 edges (Fig. 27). Also, as vis suppressed on 100 faces and Guo remains relatively high, fo-axis lenticular crystals with straight-faced pointed ends (type A crystals [33]) are often... 

Fig. 32 Lenticular crystal of Q98H398 grown from an initially 2 wt% solution in o-terphenyl at 115.8 °C. Mansfield ellipse corrected for the alkane crystal lattice is fitted to the central portion of the crystal. Crystal fi-axis is horizontal [60]...

Figure 2.16 Mass phase diagram of the ternary liquid system made of sodium diethylhexyl sulfosuosinate (AOT), heptane and water (25°C). This stem presents a vast L2 (see Figure 2.14) area. The LI area is lenticular. The dotted area is a viscous, birefiingent and milky area, probably a suspension of liquid crystal in L2 phase, redrawn from [36].

Rosettes (Figure 6E) Aggregates of multidirectional lenticular crystals. Individually, these ciystals possess lenticular morphology, with flattened edges and thick centers, and veiy different sizes from 0.5 to 20 cm long and from 0.3 to 6 cm width. 

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