| 摘要 |
A color-separating prism for producing narrow-spectral light from broader spectral light includes first, second, and third component prisms that form first and second adjacent pairs of faces. The color-separating prism also includes first and second reflective layers disposed between the prisms. The first and second reflective layers each reflect separate portions of input light back toward the front surface. In operation, a first portion of a light beam in a first wavelength range is reflected from the first reflective layer back toward the front face of the prism, and a second portion of the light beam in a second wavelength range is reflected from the second reflective layer back toward the front face of the prism. The first and second portions are totally internally reflected from the front face and exit the color-separating prism. The color-separating prism can be used in display systems.
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