Refractive crystal triangular prism (prism) is a classic tool in optical experiments, which can decompose white light into rainbow like spectra. Its core principle is to utilize the refractive index difference of different colors of light in glass to achieve dispersion effect.

Infrastructure and Principles

Structure: A transparent body with a triangular cross-section, where light enters from one side and bends when exiting from the other side.

Principle: When white light passes through a prism, different wavelengths of light are separated due to different refractive indices, forming a continuous spectrum.

main types

Triprism: The most basic dispersive prism used for teaching and basic experiments.

Belin Broca prism: capable of deflecting light of specific wavelengths by 90 degrees, suitable for precision optical systems.

Abbe prism: deflects light of a specific wavelength by 60 ° and is commonly used in spectral analysis.

practical application

Optical experiment: Demonstrate the dispersion phenomenon of light.

Medical field: used for correcting strabismus, eliminating diplopia, etc.

Industrial manufacturing: as the core component of spectrometers and spectrometers.