| 摘要 |
A centrifugal blood separation apparatus having an optical camera control system with a focused, stationary light source. A diffusion plate mounted on a rotor, rather than on or near the light source, allows an intense light beam to be transmitted from the light source to the rotor and then diffused at the rotor across an observation region. Different characteristics of a diffusion surface allow different lighting regions within the observation region. The diffusion plate has upper and lower plates with a diffusion surface sealed between the plates. This prevents degradation or contamination of the diffusion surface by abrasion, dirt, blood components or other materials that might incidentally contact the diffusion surface.
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