Relation of radius of curvature of a lens with its power: We know that the equation of focal length of a lens is given by, 1f= (µ – 1)(1r1−1r2) If the radii of curvature of the two surfaces of the lens be equal then in case of biconvex and biconcave lenses we have, 1...
Crystalline lens parameters, including power, lens thickness (LT), anterior chamber depth (ACD), and astigmatism, were measured with SS-OCT and analysed before and after cycloplegia. The lensmaker's equation was used to calculate lens power, and differences between three consecutive measurements<...
(Geom.), the result of substituting the coordinates of any point in that expression which being put equal to zero forms the equation of the curve; as, x 2 + y 2 - 100 is the power of the point x, y, relative to the circle x 2 + y 2 - 100 = 0.Webster...
(of a numberx) a number whose logarithm isatimes the logarithm ofx(and is called theath power ofx). Symbolically,y=xais a number that satisfies the equation logy=alogx. the exponent of an expression, asainxa. Seecardinal number(def. 2). ...
(of a number x ) a number whose logarithm is a times the logarithm of x (and is called the a th power of x ). Symbolically, y = xa is a number that satisfies the equation log y = a log x. the exponent of an expression, as a in xa. cardinal number ( def 2 ). Optics. ...
The term \(A\) represents the maximum value of the supply voltage \(V\left(t\right).\) Equation (1) represents pure sinusoidal supply voltage without any distortions with amplitude \(A\) and is given as: $$V\left(t\right)=Asin(\omega t)$$ (1) In all the equations defined for...
For prediction of the resolving power of the cathode lens electron density distribution is estimated in a confusion disc produced by the chromatic defect. Assuming that the energy distribution of electrons emitted from the cathode is Maxwellian, an equation for calculating the number of electrons whic...
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In the OSRAM app note they are using a very wide angle uniformly lit flat chip LED and the wider the angle, the less magnification the emitter area gets. So very likely the virtual area is equal to the emitter area. This must be an assumption built into the equation and why their ...
A camera system that includes a taking lens having a motor drive mechanism and a control mechanism for controlling the motor drive mechanism, and a camera body to which the taking lens is detachably m