| 摘要 |
<p>A system for controlling spectral power distribution of light generated by a light source is disclosed. The system includes a collimating element for collimating the light to form collimated light. In addition, the system includes a dispersing element for dispersing the collimated light into a plurality of component wavelengths each having an amplitude, wherein the plurality of component wavelengths form an input spectral power distribution whose energy level varies. Further, the system includes a light modulating element having an array of pixels which may be turned on or off by a controller. Each of the component wavelengths impinges on a corresponding set of pixels to form a plurality of pixel sets each associated with a component wavelength. First pixels in each pixel set are turned off to form blocking elements for blocking transmission of light. In addition, second pixels in each pixel set are turned on to form transmission elements for transmitting light through the light modulating element. As such, each pixel set forms a light passageway adapted for modulating the amplitude of the associated component wavelength to a desired intensity level to form an output spectral power distribution having a substantially constant light intensity level.</p> |
