Plano-Convex (PCX) and Simple Lens Kits Simple Lens Kits Include PCX, DCX, PCV, and DCV Lenses MORE ISP Optics Calcium Fluoride (CaF2) Plano-Concave (PCV) Lenses Clearance Low Index of Refraction MORE VIS-EXT Coated Plano-Concave (PCV) Lenses AR Coated to Provide <0.5% Reflectance...
The focal length of each lens can be calculated using a simplified thick lens equation:f = R /(n -1),where n is the index of refraction and R is the radius of curvature of the lens surface. These lenses are fabricated from N-BK7, which has an Abbe Number of 64.17; this value is...
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Also, it is possible to make biconvex lenses with different curvature radii on both sides. Similarly, defocusing lenses can be biconcave or plano-concave. Figure 4: Different types of optical lenses. According to lensmaker's equation (see above), a certain dioptric power can be achieved with...
(II) A planoconvex lens (Fig. 33–2a) has one flat surface and the other has R = 15.3 cm. This lens is used to view a red and yellow object which is 62.0 cm away from the lens. The index of refraction of the glass is 1.5106 for red light and 1...
Dispersion EquationIn this work we propose a method for the characterization of the dispersion equation for uniaxial crystals for both ordinary and extraordinary refractive indices respectively. This method is based on measurements of the focal length of a plano-convex uniaxial lens, when the crystal ...
If R1 is the radius of the flat surface (R1 = ∞) of the plano-convex lens, then R2 is the radius of curvature of the convex surface and Eq. (36) becomes1FB=-N-1R2 If R2 = - R, since R2 is negative [3], the above equation gives1FB=N-1R Besides, Rays arriving at the ...
The focal length of each lens can be calculated using a simplified thick lens equation:f = R/(n-1),where n is the index of refraction and R is the radius of curvature of the lens surface. These lenses are fabricated from N-BK7, which has an Abbe Number of 64.17; this value is an...
The curvatures of the four optical surfaces () are defined by the equation: Zi=CURViYi2/(1+(1+Ki)CURVi2Yi2))+(Ai)Yi2+(Bi)Yi4+(Ci)Yi6+(Di)Yi8, and the two lenses are defined by 0.35 Qiu, XiaoxiongLusinchi, Jean-pierre
An optical module (10) comprises a positive meniscus lens (16) having a focal length F1 and comprising a first convex optical surface (12) and a second concave optical surface (20), and a plano-convex lens (22) having a focal length F1 and comprising a third flat optical surface (24)...