The most common type of reflecting telescope produces an inverted image. However, it's possible for a reflecting telescope to produce an upright image, depending on exactly how the optics are arranged.
The reflecting telescope
The Galilean telescope was innovative in that he was the first to expand the range of magnification of the new spyglasses beyond 3X, using his particular set of lenses. In Sidereus Nuncius, Galileo described how these two lenses served to magnify an object."When there are no glasses in the tube, the rays proceed to the object FG along the straight lines ECF and EDG, but with the glasses put in they proceed along the refracted lines ECH and EDI. They are indeed squeezed together and where before, free, they were directed to the object FG, now they only grasp the part HI" Galileo, Sidereus Nuncius tr. Albert Van Helden, pp. 38-39.Actually, Galileo could not explain how his telescope magnified precisely. He did not understand, as we now know, that the magnification of his telescope can be computed by F/f (see top figure). Increasing the magnification requires lengthening the telescope. Our 10X telescope is about 4 feet long.From the above picture, you can see that an image, HI, will be viewed upright, making the Galilean telescope useful for terrestrial purposes as well as astronomical. Keplerian telescopes, in contrast, invert the image.
The human eye is a refractor, but the telescope could be either refractor or a reflector.
simplest possible telescope
The most common type of reflecting telescope produces an inverted image. However, it's possible for a reflecting telescope to produce an upright image, depending on exactly how the optics are arranged.
Meaning of upright image
no you cant see image its appers in waves
Yes, the image in a plane mirror appears upright and the same size as the object.
The reflecting telescope
A plane mirror produces an upright and reversed image.
Reflecting Telescope
The Galilean telescope was innovative in that he was the first to expand the range of magnification of the new spyglasses beyond 3X, using his particular set of lenses. In Sidereus Nuncius, Galileo described how these two lenses served to magnify an object."When there are no glasses in the tube, the rays proceed to the object FG along the straight lines ECF and EDG, but with the glasses put in they proceed along the refracted lines ECH and EDI. They are indeed squeezed together and where before, free, they were directed to the object FG, now they only grasp the part HI" Galileo, Sidereus Nuncius tr. Albert Van Helden, pp. 38-39.Actually, Galileo could not explain how his telescope magnified precisely. He did not understand, as we now know, that the magnification of his telescope can be computed by F/f (see top figure). Increasing the magnification requires lengthening the telescope. Our 10X telescope is about 4 feet long.From the above picture, you can see that an image, HI, will be viewed upright, making the Galilean telescope useful for terrestrial purposes as well as astronomical. Keplerian telescopes, in contrast, invert the image.
Yes. Both the objective lens in a refracting telescope and the main mirror in a reflecting telescope form real images at the prime focus. A frame of photo film or a CCD placed at that spot will capture the image.
Real images can be upright or inverted. An upright real image occurs when the light rays converge to form an image that is right-side up. An inverted real image occurs when the light rays converge to form an image that is upside down.
A convex mirror produces an upright and smaller image. This is because the light rays diverge upon reflection, causing the image to appear diminished in size.
A virtual image.