Talk about the basic issues of training of the lens design lens

Talk about the training of the lenses of the lens design matters a basic difference between the lens: 1. Structure of different spherical lens is ground on both sides of the transparent lens body composition, both sides of the thin, intermediate thick concave lens is a transparent sides are ground into a concave spherical mirror body composition, both sides of the thick, thin in the middle 2. The effect of different light rays from the converging lens focuses on the role, but when the object distance is less than the focal length, but also play a role in the divergence of the light from the concave major role 3. diverging lens is a refractive different imaging properties Imaging concave lens is "light through a concave lens after a upright virtual image, while the lens is as inverted real image of a real image may appear on the screen, the virtual image can not.." Second, the lens design training - Imaging Rule lens: 1. lens with lens symbol to indicate (a line segment ends with two V-shaped sign) Draw the main axis, optical center marked focus to the refraction of light rays according to the three special lenses in two (usually made of light and parallel to the main optical center the optical axis of the light is better) intersect, you can get into the lens of image features (such as the actual situation, size, being down, etc.). 2. The imaging lens, all the light shine on the object lens at every point on the issue are imaged at the same position, blocking part of the light does not affect the other fired the imaging lens, it is still possible to see the full image, But because the light shines on the reduction like, so the on-screen image brightness will be dimmed. 3. Convex Imaging Rule 1) lens into a real image of a need to satisfy conditions (u> f). 2) conjugate imaging refers to the size of the object and image distances are interchangeable, both cases were to zoom inverted real image. 3) See clocks twice through the lens out of focus, like the second hand still clockwise rotation, because the real image into an inverted, backwards look is still a normal direction, so there is still a clockwise direction. Dongguan City, Chi Technology Co., Ltd. optical element is mainly done in optics design training, training in optical lens design, lens design training, LED optics training, the optical designer training, street lens design, reflective glass design, TV lens design training company. Tel: 15814461722!