Optics System 1 – code: 4864.19

Optics System 1

Code: 4864.19

A complete system to study the principal laws of geometric optics

The Optics System 1 can be used for the study of many aspects of geometric optics, including photometry, luminous intensity, focal length of a lens and many other experiments.

Size: 50x45x15 cm
Weight: 7 kg
Track Lenght: 102 cm
Weight: 1.2 kg
Packing: durable aluminium carry case with foam inserts

Equipment Suggested
RED Light Sensor (code 4840.18)
RED Sensor Universal Adapter ( code 4831.00)
Tripod Stand (code 4830.46)


  • Lampholder, single
  • Lampholder, quadruple
  • Transformer
  • Prism table
  • Projector with halogen lamp
  • White metal screen
  • Set of 4 Biconvex Spherical lenses
  • Set of 4 Biconcave Spherical lenses
  • Set of 4 Concave Spherical mirrors
  • Set of 4 Convex Spherical mirrors
  • Optical bench with supports
  • Shadow rod
  • Joly photometer on stem
  • Set of diaphragms
  • Equilateral glass prism


  • Photometry
  • Luminous intensity
  • Shadow and penumbra
  • Magnifier
  • Lenses
  • Mirrors
  • Thin lens equation
  • Focal length
  • System of lenses
  • Prism
  • The eye
  • Microscope
  • Telescope


  • Concave and convex mirror
  • Convergent and divergent lens
  • Focal length
  • Gauss approximation
  • The eye, hyperopic and myopic eye
  • Inverse square law
  • Joly photometer
  • Lens power
  • Luminous intensity
  • Magnifier and magnifying power
  • Photometry
  • Prism
  • Ray tracing
  • Refractive index
  • Umbra and penumbra
  • System of lenses
  • The microscope
  • The telescope
  • Thin lens equation
EXAMPLE OF USE: Focal length of a converging lens

How to find the exact focal length of a converging lens.

If the converging lens has a focal length such that the system of the converging plus diverging lenses is still converging, it is possible to recover the focal length of the system by using the thin lens equation (valid in the “Gauss approximation”).

Thin lens equation: u is the object distance, v is the image distance and f is the focal length.

Schematic view of symbols and sign