A radio telescope is a reflecting telescope, and uses a mirror rather than a lens.
Since radio waves are so much longer than light waves, the 'mirror' of a radio
telescope is the 'dish' reflector that focuses radio waves onto its antenna,
located at the prime focus of the dish.
The eyepiece of a reflecting telescope typically contains a convex lens. This lens helps magnify the focused light that has been reflected off the primary mirror, allowing the observer to see a magnified image of the object being observed.
A microscope uses an objective lens and an eyepiece lens to magnify tiny objects for closer examination. The objective lens gathers light from the specimen and forms an enlarged image, which is further magnified by the eyepiece lens for viewing.
A compound microscope uses both an objective lens and an eyepiece lens. The objective lens is located near the specimen and provides initial magnification, while the eyepiece lens further magnifies the image for viewing. This combination allows for detailed observation of small objects and biological specimens.
Practically all telescopes which use lenses, normally the refracting type. the Reflector use objective Concave Mirrors, but even these need eyepieces or finder scopes.
Reflecting telescopes use concave mirrors to gather and focus light to form an image. The primary mirror in a reflecting telescope collects incoming light and reflects it to a secondary mirror, which then directs the light to the eyepiece or camera for viewing. This design is commonly used in telescopes like Newtonian reflectors and Cassegrain telescopes.
Ocular lens is a type of eyepiece that is attached to a variety of optical devices such as telescopes and microscopes.
They use a mirror instead of a lens to focus light into the eyepiece. Newtonian telescopes are the most common type. Schmidt-Cassegrain is also a popular design but more complex and expensive.
The eyepiece of a reflecting telescope typically contains a convex lens. This lens helps magnify the focused light that has been reflected off the primary mirror, allowing the observer to see a magnified image of the object being observed.
ocular lens
If you are comparing the biggest telescopes in each type, that's because a large refracting telescope needs a huge lens, which gets expensive; also, the lens can't be supported, while a mirror can.
A reflecting telescope only uses lenses in the eyepiece. Light is picked up and an image produced by using a concave parabolic mirror.
A refracting telescope is a type of telescope that has a large thin lense at the front and a smaller thicker lense at the end where the eyepiece is. Refracting telescopes use lenses unlike reflecting telescopes that use mirrors to reflect the light. This is a good image of a refracting and reflecting telescope: [See related link]
A microscope uses an objective lens and an eyepiece lens to magnify tiny objects for closer examination. The objective lens gathers light from the specimen and forms an enlarged image, which is further magnified by the eyepiece lens for viewing.
A compound microscope uses both an objective lens and an eyepiece lens. The objective lens is located near the specimen and provides initial magnification, while the eyepiece lens further magnifies the image for viewing. This combination allows for detailed observation of small objects and biological specimens.
A reflecting telescope.
Practically all telescopes which use lenses, normally the refracting type. the Reflector use objective Concave Mirrors, but even these need eyepieces or finder scopes.
A refracting telescope is a type of telescope that uses a lens as its objective to form an image. This is different from other type of telescopes because it has a objective lens.