Linear optical bench, polychromatic and monochromatic light, optical panel, slit and circle masks

Linear optical bench, polychromatic and monochromatic light.

light set

Mercury spectrum array with UV side window and grating

Telecommunications study kit

Linear optical bench, double busbar, mercury spectral lines, monochromatic and polychromatic flashlights

Discrete light diffraction and wavelength set with laser and rectangular base

vision defects set

Cidepe