Your eye from the eyepiece is almost parallel. Using your small-angle approximation. You can then replace the angles in the magnification equation. With the new expressions of image height and focal lengths. After all the like terms cancel out. You’re left with the magnification equation for the focal length of the aim lens Optical Center and the eyepiece. Galileo pioneered the use of refracting telescopes in astronomy. But today, many other types of telescopes a uses for space research. Many, like the Hubble Space Telescope. Are reflecting telescopes, using mirrors as the aim
Optical Center Mirrors:
A lens so that they can have huge openings. Taking in as much light as possible to best capture images of distant objects. These mirrors are convex, causing rays to converge. Into a real image, which is then magnified through an. The eyepiece or projected onto a digital sensor. Now, let’s switch gears and shrink back. Down to the small stuff. A simple magnifier isn’t enough to study. Objects on the cellular scale, so we’ve developed compound microscopes Optical Center. Like a telescope, use aim lenses and eyepieces to magnify objects. Only this time, the object’s distance to the aim lens is much smaller.
Observer to View:
An object is a place beyond the focal point of the aim lens, so light rays again. Form a flipped real image on the other side. And like with telescopes, the real image is inside the focal point of the eyepiece, generating. A large virtual image for the observer to view. Now, remember, for all these optical instruments. Our original optics equations still hold true! We have the magnification equation.
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Expressed subtended :
angles, but we can still use the equations. Distance and height for both objects and images. Likewise, the thin lens equation is still. Applicable in most of our basic situations in Optical Center. Remember that? It’s the equation that relates the object distance And the image distance to the lens’s focal length. Now, as amazing as our technology has
Become for capturing images, we can’t escape the fundamental wave nature of light! When we first learned about how light travels as a wave, we saw how light passes through a thin. The slit spreads beyond the edges Optical Center of the slit. This diffraction, which is the reshaping of light by obstacles, happens in lenses too. Since lenses have edges, the incoming rays will. Always diffract and produce blurred images, Even if the lens is a craft.
Optical Center Lens:
For instance, a single point of light. When captured by a camera, will appear as a central bright spot. Known as a diffraction disk, with weakening circular rings of light spreading out from it. The ability of a camera to produce images. Of points very close together resolution in Optical Center, A term that you’ve heard before. The higher the resolution, the clearer two. Points that are close together will appear in an image. For telescopes and microscopes, the ability. To resolve an image becomes more difficult. As the magnification gets higher because of the diffraction patterns
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So, the magnifying power of optical tools is a Limit, because light acts like the wave that it is. Today, we learned about the human eye’s functions. Like a camera. We also studied simple magnifiers and how. To generate an enlarged virtual image. Then, we analyzed how refracting. Telescopes and compound microscopes Optical Center. Function using the same principles. Finally, we discussed how the wave nature of light affects the resolution of images. In cameras and all optical instruments. Thanks to Prudential for sponsoring this blog
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