| 摘要 |
An emitting diffuser of electromagnetic radiation constructed as a three-dimensional body containing a reflective optical cavity. The cavity is coated with a highly reflective diffusion material over substantially its entire interior. The remaining interior surface is a transparent or translucent diffusion material forming a radiation exiting window, with the window geometry being selected to give a desired radiation pattern. The diffuser may receive energy from a laser source through an interconnecting light pipe, protecting near observers from the potentially eye damaging source emitted radiation. The light diffuser may be operated as a simulated target for laser-type target identification and tracking systems. A preferred embodiment of this invention is a hollow sphere in which the window is ring-shaped, and located substantially equidistant from the equatorial and upper polar region of the sphere.
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