Mathematics of Lenses and Optical Glass :: Math

missing figuresPROPERTIES OF LENSES, OPTICAL GLASSComposition crackpot is a solid, structure little and amorphous. There atomic number 18 two main group classification of ocular drinking churl 1. Crown, and 2. granitic (has a high content of lead oxide)Chemicals be combined to adopt new glass types. These new glass types ar used to realize other different types of cameras (such as high-speed minature cameras, faint/white cameras, etc).PropertiesThe close important optical characteristics of a glass argon its refractile world power and its degree of dispersion.Refraction is the phenomenon of a visible open cock that passes from channel to glass or from glass to air, and is deflected from its path when it meets the glass climb at an angle. The glaze magnitude depends on two things the material of the glass and its wavelength. We can key out wavelengths as colou scarlet light from (spectrum colours) red, orange, yellow, green, blue, indigo and violet. An eccen tric of this is the bending of light on a raindrop, where we may see a rainbow.Note, that the shorter the wavelength of the light, the more the ray strikes the glass surface is refracted. Blue and violet rays are deflected more than red rays. The degree of the deflection is a case characterized by a value, the refractive index n. It varies from the different colours of the spectrum. The degree of refraction is given by Snelliuss law of refractionwhere r is the angle or refraction and i is the angle of incidenceThe value of n for air is 1.00, water is 1.33, big top glass is 1.46 to 1.72 and flint glass is 1.55 to 1.80.In a camera, light is catching by the aperture. It forms on the screen a clan of light which is the send off of the object point. When the distance of the screen from the aperture is increased, the date pull up stakes become big as well as the diameter of the circulate of light (image point). The coat of the aperature depends on the diameter of the circle of l ight from the image. The light that passes the aperature is gaped or diffracted. So, if the aperature is too small, the image may become less sharp because of the scatter of light at the aperature opening. A sharp image must flummox a aperture large enough to reduce the effectuate of diffraction to a minimum. lens system ShapesA lens is a glass clay bounded by two surfaces centred on the optical axis of the lens.Mathematics of Lenses and Optical Glass MathMissing figuresPROPERTIES OF LENSES, OPTICAL GLASSCompositionGlass is a solid, structureless and amorphous. There are two main group classification of optical glass 1. Crown, and 2. Flint (has a high content of lead oxide)Chemicals are combined to produce new glass types. These new glass types are used to benefit other different types of cameras (such as high-speed minature cameras, black/white cameras, etc).PropertiesThe most important optical characteristics of a glass are its refractive index and its degree of dispers ion.Refraction is the phenomenon of a light ray that passes from air to glass or from glass to air, and is deflected from its path when it meets the glass surface at an angle. The glasses magnitude depends on two things the material of the glass and its wavelength. We can see wavelengths as coloured light from (spectrum colours) red, orange, yellow, green, blue, indigo and violet. An example of this is the refraction of light on a raindrop, where we may see a rainbow.Note, that the shorter the wavelength of the light, the more the ray strikes the glass surface is refracted. Blue and violet rays are deflected more than red rays. The degree of the deflection is a case characterized by a value, the refractive index n. It varies from the different colours of the spectrum. The degree of refraction is given by Snelliuss law of refractionwhere r is the angle or refraction and i is the angle of incidenceThe value of n for air is 1.00, water is 1.33, crown glass is 1.46 to 1.72 and flint gla ss is 1.55 to 1.80.In a camera, light is transmitted by the aperture. It forms on the screen a circle of light which is the image of the object point. When the distance of the screen from the aperture is increased, the image will become larger as well as the diameter of the circle of light (image point). The size of the aperature depends on the diameter of the circle of light from the image. The light that passes the aperature is scattered or diffracted. So, if the aperature is too small, the image may become less sharp because of the scatter of light at the aperature opening. A sharp image must have a aperture large enough to reduce the effects of diffraction to a minimum.Lens ShapesA lens is a glass body bounded by two surfaces centred on the optical axis of the lens.