lightbeams going through a concave, spherical lens from left to right, points out the focal point and hence the focal length of that lens. I, the copyright...
A diagram representing a w:concave mirror, which shows its focal point, w:focal length, w:center of curvature, and the principal axis. It enables the...
DescriptionFocal-length-c.png Français : Foyer F et distance focale f (positive) d'un miroir concave. English: The focus F and the focal length f (positive)...
DescriptionFocal-length.png Focal length Español: El foco F y la distancia focal f de una lente positiva, una lente negativa, un espejo cóncavo, y un...
DescriptionConcave lens-diverging rays.png తెలుగు: పుటాకార కటక వ్యాసం కొరకు తయారుచేసిన చిత్రం Date 7 November 2013, 20:02:01 Source Own work Author Kvr...
0836With concave lenses, incoming parallel rays diverge after going through the lens, in such a way that they seem to have originated at an.png English:...
DescriptionBrennglas lichtbuendelung skizze.png Parallele Lichtstrahlen werden im Brennpunkt gebündelt - you may translate it in english :-) Date 9 October...
the high-frequency receiving element. The transducer has a set focal length by its concave design. This transducer is designed to excite microbubble contrast...
outside, towards the object, and of a concave-convex lens C D of flint-glass, placed towards the eye. The focal length of a lens is the distance of its centre...
