The lens maker’s formula involves the focal length, refractive index of the material of the lens and the radius of curvature of the two surfaces of the lens. This formula is derived from the refraction of light on the two spherical surfaces of a lens. In Fig. refraction of light at the...
doi:10.1016/j.ijleo.2018.11.138Sanjana ChoudharyDarshan ChaliseDivya ChaliseUrban & FischerOptik International Journal for Light & Electron Optics
An acoustic lens suitable for a CMUT array (74) is provided. The acoustic lens comprising: a first layer (47) comprising a thermoset elastomer having a polymeric material selected from hydrocarbons, wherein the first layer has an inner surface (72) arranged to face the array and an outer co...
The disclosure provides an optical imaging lens assembly, which sequentially includes, from an object side to an image side along an optical axis, a first lens, a second lens, a thi
In order to calculate the dioptric power of the thermal lens, one first needs to calculate the dissipated power. This is some percentage of the absorbed pump power. How large that percentage is, depends on the circumstances. In simple cases like an Yb-dopedfiber laser, where the laser-active...
Sanjana Choudhary aDarshan Chalise bDivya Chalise cOptik
It is shown that properly arranged arrays not only can behave as acoustic lenses, but also the focusing effect can be well described by Lensmaker's formula. Possible applications are also discussed.Kuo, C H; Ye, Zdoi:10.1088/0022-3727/37/15/017Chao-Hsien Kuo...
Results obtained from this method are verified using Lens Maker's formula for thin lenses. The theoretical model presented here also agrees well with the experimental results. The verified method is then used to determine the criteria for the validity of thin lens approximation. As a consequence,...
Results obtained from this method are verified using Lens Maker's formula for thin lenses. The theoretical model presented here also agrees well with the experimental results. The verified method is then used to determine the criteria for the validity of thin lens approximation. As a consequence,...