Composition with U-shaped optical bench and filament source

Manipulations:
- Reflection, plane mirror.
- Verification of formulas for diverging and converging thin lenses.
- Focometry: autocollimation method, Bessel method, Silbermann method.

- 1 U-shaped bench of 2 m (ref.202030)
- 1 screen and stand carrier (ref.202224)
- 1 fixed support for components Ø40 mm (ref.203085)
- 1 adjustable mobile support in height and direction for components Ø40 mm (ref.203086)
- 1 millimeter grid screen (ref.202880)
- 1 set of 5 diaphragms
- 1 filament source on pads with power supply and shutter cover (ref.202202)
- 1 cut-out letter "F" (ref.202214)