Principle

In conjunction with their investigation of the model for the
short-sighted eye, the students strengthen their understanding of
the light path with a convex lens. Using the example of the
correction of the short-sighted eye with the aid of planoconcave
lens, the useful application of the laws of optics to man is
illustrated. At the same time, their knowledge about the ability of
the eye to accommodate is reviewed and, using the example of
divergent incident light (near the eye), is once more investigated
experimentally.

The experiment is demanding in terms of abilities and skills
required particularly with reference to the necessary abstraction
from the level of the model to the real eye. In addition to a clear
conception of the construction of the human eye this requires, that
the students understand the principle of image formation on the
retina.

On the other hand, with this experimental series, one can
achieve a substantial contribution to the understanding of everyday
experience (wearing glasses, how spectacles work) and instil an
awareness of implications for social behaviour (sympathetic
behaviour towards spectacle wearers).

Benefits


Multifunctional light box - All-in-one: Can be used for geometric optics on the table, colour mixing and on an optical bench

Extension with others sets at anytime, no additional light sources needed, recognition value for students



Tasks

What is short-sightedness and how can it be corrected?
Investigate how short-sightedness affects the seeing of objects
located near or far away using the model eye, and which
possibilities there are for its correction.