Winlens lab instructions

Simulation, design, and analysis of
simple optical systems with LINOS
Photonics WinLens 4.3
This section is the actual lab assignment.
1. Lenses and some characteristics
General comments
In this part of the assignment you will set up a simple convex planar lens and
analyze its performance using the criteria you find appropriate. You will also
compare it to an achromat from the component database. An achromat is a lens
(most commonly a doublet lens) designed to limit the effects of chromatic and
spherical aberration. Suggestions of graphs and tables to analyze are
o Spot Diagram
o Spot Diagram Summary
o MTF
o Transverse Ray Aberrations
o Field Aberrations
o Chromatic Aberration
o Seidel Aberrations
To achieve good accuracy for spot diagrams and MTF, always use 15 Ray Rings.
(You set the number of ray rings on the Options menu).
Use screen printouts or screen snapshots, with your own comments, for your lab
report. To copy the screen to the clipboard, press SHIFT-PrintScrn. To copy
individual graphs or tables, right-click the graph or table and click Copy
graph/table to clipboard.
Tasks
Typing “lens” in the Component column of the System Data Editor, set up a
simple planar convex lens with focal length approximately f=100 mm, aperture
diameter > 30 mm, and glass type Schott BK7 (having refractive index n=1.52).
a) Set the following system parameters
o Object Distance = infinity (the Conjugates tab of the System
Parameter Editor)
o Stop Radius = 10 mm (Aperture tab)
o Object Angles 0 and 10 deg (Field tab)