Afocal system
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 by
Afocal system
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 by
has abstract
25بك المحتوى هنا ينقصه الاستشه ...... حاجة للتوسيع. شارك في تحريرها.
@ar
Als afokal bezeichnet man ein ...... Baugruppe ein afokales System.
@de
En optique, un système afocal ...... ple sont des systèmes afocaux.
@fr
In optics an afocal system (a ...... lescopes (Afocal photography).
@en
無焦系統(afocal system)也稱為遠焦系統或焦外系 ...... side轉換器等望遠鏡頭配件以及結合相機及望遠鏡的無焦攝影。
@zh
Wikipage page ID
26,174,362
Wikipage revision ID
743,535,057
subject
comment
25بك المحتوى هنا ينقصه الاستشه ...... حاجة للتوسيع. شارك في تحريرها.
@ar
Als afokal bezeichnet man ein ...... e Abweichung verursachen kann.
@de
En optique, un système afocal ...... ple sont des systèmes afocaux.
@fr
In optics an afocal system (a ...... f such a telescope is given by
@en
無焦系統(afocal system)也稱為遠焦系統或焦外系 ...... side轉換器等望遠鏡頭配件以及結合相機及望遠鏡的無焦攝影。
@zh
label
Afocal system
@en
Afokales Linsensystem
@de
Système afocal
@fr
نظام بصري غير متقارب
@ar
無焦系統
@zh