Exemplary Lens Maker Formula Derivation With Diagram
Lenses of different focal lengths are used for different optical instruments.
Lens maker formula derivation with diagram. Class 10 Physics Light Reflection Refraction Asked by Rah 1 Answers. N 2 v - n 1 u n 2 - n 1R. Considering the refraction of a point object on the surface X P 1 Y the image is formed at I 1 who is at a distance of V 1.
It is so called because it is used by lens manufacturers to make. An object AB is held perpendicular to the principal axis at a distance beyond the focal length of the lens. Lens Makers Formula - example Consider a convex lens or concave lens of absolute refractive index μ 2 to be placed in a rarer medium of absolute refractive index μ 1.
Lens manufacturers use the lens makers formula to manufacture lenses of the desired focal length. Derivation for lens makers formula. Iv The object is a small object placed on the principal axis.
The Lens Makers Formula. Derivation of lens formula for a convex lens. Lens Makers Formula - example Consider a convex lens or concave lens of absolute refractive index μ 2 to be placed in a rarer medium of absolute refractive index μ 1.
The manufacturers of the lenses use this relation to design the lens of a given focal length and. I The lens used is thin. Consider a convex lens with an optical center O.
Ii The aperture of the lens is small. O C 1 II C 2 1 P 1 P 2 I2 B E A D u1 v1 v2 r1 r2 t n1 t v1 n2 n1 SF027 52 By using the equation of spherical refracting surface the refraction by first surface AB and second surface DE are given by. The formula giving the relation between the focal length f of the lens the refractive index of the material of the lens n and the radii of curvature of its surface R 1 R 2 is known as Lens maker formula.