Equipment Locations
| Item | Location |
|---|---|
| Red or Green Laser (less than 5 mW) | TLC Desk |
| Spherical Plastic Pin Head | Cabinet 24, Shelf 4 |
| Diverging Lens (-20 cm) | Cabinet 24, Shelf 2 |
| Lens Holder | Cabinet 17, Shelf 1 |
| Cardstock Shielding | Set 5, Cabinet 2, Shelf 3 |
| Binder Clip (Large) | |
| Assorted stands and clamps |
Set-up Instructions:
- Place the screen near the capturing camera and as far from the optics bench holding the laser/lens/pin setup.
- Place laser at one end of an optics bench in three-finger clamp right-angle off a optics bench rod.
- Place the diverging lens (f = -20 cm) in a lens holder and situated about 20 cm away from the laser (near the middle) on the optics bench. Note: The lens holder need to be right-angled off another rod to align with the laser.
- Place the pin in a large binder clip and attach to right-angled rod situated about 25 cm away from the lens on the optics bench. The clip should swing freely, but be held somewhat in place by friction.
- Align the pin with the laser until the dispersed beam is covered.
- Put USB camera on the bright spot so that all students can see it.
Test this before going into lecture hall to verify correct distance, proper vertical alignment, and proper pin head size. Once in the lecture hall, allow a minute or 2 to readjust, since things will misalign during transport.