Lenses double-convex

Lentic ular.—Having the shape of a double convex lens. 

Relalionshijjs between flow rate ratio and focal length of liquid core and liquid cladding lens. The dimension of the focal length was normalized by the radius of the circular chamber, (a) Symmetrical double convex lens, (b) Planoconvex lens. (Source Song, C., N.T. Nguyen, S.H. Tan et al. 2009. Lab on a Chip, 9(9), 1178-1184. With permission.)... 

Lenses a body of ore or rock shaped like a double-convex optical lens, thick in the middle and thinning out at the edges. 

Lens The transparent, double convex (outward curve on both sides) structure suspended between the aqueous and vitreous helps to focus hght on the retina, [nih]... 

A firequency-doubled Nd YAG laser operating at 10 hz was used with a pulse energy of 60 mJ/pulse. A spherical plano-convex lens with a focal length of 38 mm was mounted inside of e vacuum chamber to create a tight focus the at the center of the extraction field o the mass spectrometerand perpindicular to the particle beam. The laser power density at the focal point was approximately... 

Additionally, an inherent property of the pumped Nd YAG lasers is the presence of pulse to pulse differences in coherency. When the beam subsequently passes through the lenses, this difference is enhanced. In order to tackle the issues caused by the use of a double-pulse Nd Y ag laser, a homog-enizer was developed by the Bayeiisches Laserzentrum to remove the pulse-to-pulse differences and to diverge the laser hght into a cone. The laser beam is divided into beamlets by two microlenses arrays. The beamlets are overlapped with the help of a plan-convex lens in a plane behind this lens. To supply illumination inside the furnace, the double-pulse laser was coupled also to a customized high-temperature endoscope. 

Unlike the designs with rectangular lens expanding chambers discussed above. Song et al. proposed a design with a circular chamber to realize a perfect lens profile [16]. They presented a mathematical model to describe the relationship between the lens shape and flow rate. Their circular chamber is shown in Figure 7.12 [16]. The relationship between the flow rate ratio and focal length of the symmetrical double convex optofluidic lens was ... 

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