![](../img/optics2_setup.jpg)
Room setup |
![](../img/optics2_bench.jpg)
Optical bench (light bulb closest to window) |
![](../img/optics2_parts.jpg)
Group bench riders together at end holding
bulb, arrow object, lens, screen |
![](../img/optics2_bulb.jpg)
Detail of bulb, arrow object, lens |
![](../img/optics2_align.jpg)
Note how all objects are at the same height! |
![](../img/optics2_object1.jpg)
Rider for arrow object is aligned with 5 cm mark. . . |
![](../img/optics2_object2.jpg)
. . . or aligned with 120 cm mark |
![](../img/optics2_lens.jpg)
Place 800-series lens in bench |
![](../img/optics2_screen.jpg)
Screen has index card side facing lens |
![](../img/optics2_supply.jpg)
Use a variac to control bulb brightness |
![](../img/optics2_virtual.jpg)
Place "virtual image detector" on lab bench |
![](../img/optics2_lens2.jpg)
Place a small mounted lens (marked with "A") on the lab bench |
![](../img/optics2_lenses.jpg)
Place boxes of extra lenses up front |