The Path of a Ray through a Lens
المؤلف:
GEORGE A. HOADLEY
المصدر:
ESSENTIALS OF PHYSICS
الجزء والصفحة:
p-467
2025-12-18
25
Suppose the ray to come from the point P on the principal axis and to strike a crown-glass lens at the point A (Fig. 1). The direction AB through the lens may be found as follows:
Describe from A as a center two arcs of circles with radii that are to each other as 3: 2 (3/2 being the index of refraction of the lens). From E, the intersection of the ray with the inner arc DE, draw a line parallel to the normal DA, and from H, where the parallel intersects the outer arc, draw HA and prolong it to В.
In a similar way we can determine the direction, ВК, that the ray will take on emerging from the lens.
الاكثر قراءة في مواضيع عامة في علم البصريات
اخر الاخبار
اخبار العتبة العباسية المقدسة
