OXP-03 Lenses  

Topics

Focal Length
Spherical Aberration
Convex / Concave Lenses
Chromatic Aberration
Ray Tracing


Examples of Investigation and Measurement

Properties of lenses
In a ray tracing set-up various types of lenses like convex, concave, thin and thick lenses are investigated for their characteristics. The path of the rays can be followed within and outside of the lenses and properties like focal length or magnification factor can be demonstrated.

Spherical aberration
On this set-up spherical aberration of lenses is demonstrated. It shows how spherical aberration can be reduced by a proper installation of the lens of interest.

Telescopes
With pairs of lenses the set-ups of Kepler as well as Galilei telescopes are performed. Their working principle can be visualized and investigated by ray tracing.

Chromatic aberration
For demonstration of chromatic aberration of a lens, a light source of blue and red colour is used. The sharp image of a mask inserted in the beam path can be localized as a function of the light colour by observing the image through a magnifying glass.
 
 


Required Equipment

Cat. No.     Qty.    Description
02.0500      1       Profile rail, 500 mm
02.2132      3       Mounting plate, click 30, carrier 20
02.2202      1       Filter plate holder for 3 filters, carrier 30
02.6106      1       Adjustment holder, 4 axes, carrier 20
04.0022      1       Achromat f=40, 25.4, click 30
04.0028      1       Achromat f=150, 25.4, click 30
04.0053      1       Biconvex lens f=150 mm, 25.4, click 30
04.0060      1       Plano convex lens f=40 mm, 25.4, click 30
05.0030      1       High brightness LED lamp, white
05.0228      1       DIMO 532 (green), beam fan
07.0206      1       Active power supply LDD-05
09.1302      1       Lens demonstrator assembly
09.1304      1       Beam track display, 100 mm
09.1306      1       Beam track display, 50 mm
09.1308      1       Set of filters and mask