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- Afocal_system abstract "In optics an afocal system (a system without focus) is an optical system that produces no net convergence or divergence of the beam, i.e. has an infinite effective focal length. This type of system can be created with a pair of optical elements where the distance between the elements is equal to the sum of each element's focal length (d = f1+f2). A simple example of an afocal optical system is an optical telescope imaging a star, the light entering the system is at infinity and the image it forms is at infinity (the light is collimated). Although the system does not alter the divergence of a collimated beam, it does alter the width of the beam, increasing magnification. The magnification of such a telescope is given byAfocal systems are used in laser optics, Infrared and forward looking infrared systems, camera zoom lenses and telescopic lens attachments such as teleside converters, and photography setups combining cameras and telescopes (Afocal photography).".
- Afocal_system thumbnail Système_afocal_téléobjectif.svg?width=300.
- Afocal_system wikiPageID "26174362".
- Afocal_system wikiPageRevisionID "545849539".
- Afocal_system hasPhotoCollection Afocal_system.
- Afocal_system subject Category:Geometrical_optics.
- Afocal_system subject Category:Optics.
- Afocal_system type BodyPart105220461.
- Afocal_system type Eye105311054.
- Afocal_system type GeometricalOptics.
- Afocal_system type Optics.
- Afocal_system type Organ105297523.
- Afocal_system type Part109385911.
- Afocal_system type PhysicalEntity100001930.
- Afocal_system type SenseOrgan105299178.
- Afocal_system type Thing100002452.
- Afocal_system comment "In optics an afocal system (a system without focus) is an optical system that produces no net convergence or divergence of the beam, i.e. has an infinite effective focal length. This type of system can be created with a pair of optical elements where the distance between the elements is equal to the sum of each element's focal length (d = f1+f2).".
- Afocal_system label "Afocal system".
- Afocal_system label "Afokales Linsensystem".
- Afocal_system label "Système afocal".
- Afocal_system sameAs Afokales_Linsensystem.
- Afocal_system sameAs Système_afocal.
- Afocal_system sameAs m.0b75754.
- Afocal_system sameAs Q383372.
- Afocal_system sameAs Q383372.
- Afocal_system sameAs Afocal_system.
- Afocal_system wasDerivedFrom Afocal_system?oldid=545849539.
- Afocal_system depiction Système_afocal_téléobjectif.svg.
- Afocal_system isPrimaryTopicOf Afocal_system.