| 摘要 |
The invention discloses a quarter wave plate of a biprism made of an amorphous material, which comprises a biprism structure, wherein the biprism is combined by two one-eighth prisms made of the amorphous material or combined by two fully-symmetric three-eight prisms, the quarter wave plate utilizes a principle of different phase changes of P wave and S wave in total internal reflection, and an emergent light beam and an incidence light beam are coaxial. The coaxial quarter wave plate is low in cost, has low aberration, is convenient to use and free from wavelength influence, and is slightly affected by temperature. |
